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GLOSIS code lists properties

Release: 29th Jul, 2026

Modified on: 29th Jul, 2026
This version:
http://w3id.org/glosis/model/codelists/properties/2.0.0
Revision:
2.0.0
Authors:
Raul Palma
Bogusz Janiak
Luís Moreira de Sousa
Download serialization:
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License:
https://creativecommons.org/licenses/by-nc-sa/3.0/igo/ License
Visualization:
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Provenance of this page
GloSIS Ontology Specification Draft

Abstract

This ontology is one of the modules comprising Global Soil Information System (GloSIS) ontology. The GloSIS ontology was developed part of the SIEUSOIL project, which aims at implementing and testing a shared China-EU Web Observatory platform that will provide Linked (Open) Data to monitor status and threats of soil and land resources. The GloSIS ontology enables the representation of soil related data in semantic format. The ontology has been derived from the UML GLOSIS data model v1.0, and it has been created in line with best practices and methodologies, reusing existing standard models and ontologies, including sosa/ssn for the representation of measurements, or SKOS for the representation of codelists.

Introduction back to ToC

This module contains all the code lists of properties.

GloSIS Ontology: Main module: Overview back to ToC

This ontology has the following classes and properties.

Classes

Named Individuals

Rules

Cross-reference for GloSIS Ontology: Main module classes, object properties and data properties back to ToC

This section provides details for each class and property defined by GloSIS Ontology: Main module.

Classes

Code list class for ClayProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/ClayPropertyCode

This code list class provides the ClayProperty codes.
ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
is equivalent to
{ Clay Carbonate , Clay Non-Carbonate , Clay Water Dispersible }
has super-classes
concept c, observable property c
has members
Clay Carbonate ni, Clay Non-Carbonate ni, Clay Water Dispersible ni

Code list class for DescriptiveProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/DescriptivePropertyCode

This code list class provides the DescriptiveProperty codes.
Africa Soil Profiles Database Version 1.2. ISRIC Report 2014/01. Guidelines for Soil Description issued by the FAO. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System.
is equivalent to
{ Forest Abundance Property , GGrass Abundance Property , MMajor Land Form Property , PParent Deposition Property , PParticle Size Fractions Sum Property , PPhysiography Property , RRoots Presence Property , SSalt Thickness Property , VVegetation Class Property , VVoids Classification Property , Bare Cover Abundance Property , Biological Abundance Property , Biological Features Property , Bleached Sand Property , Boundary Distinctness Property , Boundary Topography Property , Bulk Density Mineral Property , Bulk Density Peat Property , Carbonates Content Property , Carbonates Forms Property , Cation Exchange Capacity Effective Property , Cation Exchange Capacity Property , Cations Sum Property , Cementation Continuity Property , Cementation Degree Property , Cementation Fabric Property , Cementation Nature Property , Coating Abundance Property , Coating Contrast Property , Coating Form Property , Coating Location Property , Coating Nature Property , Colour Dry Property , Colour Moist Property , Consistence Dry Property , Consistence Moist Property , Cracks Depth Property , Cracks Distance Property , Cracks Width Property , Crop Class Property , Dry Consistency Property , Erosion Activity Period Property , Erosion Area Affected Property , Erosion Category Property , Erosion Degree Property , Erosion Total Area Affected Property , Flood Duration Property , Flood Frequency Property , Fragment Cover Property , Fragments Class Property , Fragments Size Property , Geology Property , Groundwater Depth Property , Gypsum Content Property , Gypsum Forms Property , Gypsum Weight Property , Human Influence Class Property , Infiltration Rate Class Property , Infiltration Rate Numeric Property , Koeppen Class Property , Land Use Class Property , Landform Complex Property , Lithology Property , Mineral Conc Abundance Property , Mineral Conc Colour Property , Mineral Conc Hardness Property , Mineral Conc Kind Property , Mineral Conc Nature Property , Mineral Conc Shape Property , Mineral Conc Sizee Property , Mineral Conc Volume Property , Mineral Content Property , Mineral Fragments Property , Moist Consistency Property , Moisture Content Property , Mottles Abundance Property , Mottles Boundary Classification Property , Mottles Colour Property , Mottles Contrast Property , Mottles Presence Property , Mottles Size Property , Oxalate Extractable Optical Density Property , Parent Lithology Property , Peat Decompostion Property , Peat Drainage Property , Peat Volume Property , Plasticity Property , Pores Abundance Property , Pores Size Property , Porosity Class Property , Profile Description Status Property , Rock Abundance Property , Rock Outcrops Cover Property , Rock Outcrops Distance Property , Rock Shape Property , Rock Size Property , Roots Abundance Property , Salt Content Property , Salt Cover Property , Salt Presence Property , Salt Property , Sandy Texture Property , Sealing Consistence Property , Sealing Thickness Property , Shrubs Abundance Property , Slope Form Property , Slope Gradient Class Property , Slope Gradient Property , Slope Orientation Class Property , Slope Orientation Property , Slope Pathways Property , Soil Depth Bedrock Property , Soil Depth Property , Soil Depth Rootable Class Property , Soil Depth Rootable Property , Soil Depth Sampled Property , Soil Type Property , Soluble Anions Total Property , Soluble Cations Total Property , Stickiness Property , Structure Grade Property , Structure Size Property , Surface Age Property , Texture Lab Class Property , Texture Property , Tree Density Property , Voids Diameter Property , Weather Conditions Current Property , Weather Conditions Past Property , Weathering Fragments Property , Wet Plasticity Property }
has super-classes
concept c, observable property c
has members
Bare Cover Abundance Property ni, Biological Abundance Property ni, Biological Features Property ni, Bleached Sand Property ni, Boundary Distinctness Property ni, Boundary Topography Property ni, Bulk Density Mineral Property ni, Bulk Density Peat Property ni, Carbonates Content Property ni, Carbonates Forms Property ni, Cation Exchange Capacity Effective Property ni, Cation Exchange Capacity Property ni, Cations Sum Property ni, Cementation Continuity Property ni, Cementation Degree Property ni, Cementation Fabric Property ni, Cementation Nature Property ni, Coating Abundance Property ni, Coating Contrast Property ni, Coating Form Property ni, Coating Location Property ni, Coating Nature Property ni, Colour Dry Property ni, Colour Moist Property ni, Consistence Dry Property ni, Consistence Moist Property ni, Cracks Depth Property ni, Cracks Distance Property ni, Cracks Width Property ni, Crop Class Property ni, Dry Consistency Property ni, Erosion Activity Period Property ni, Erosion Area Affected Property ni, Erosion Category Property ni, Erosion Degree Property ni, Erosion Total Area Affected Property ni, Flood Duration Property ni, Flood Frequency Property ni, Forest Abundance Property ni, Fragment Cover Property ni, Fragments Class Property ni, Fragments Size Property ni, GGrass Abundance Property ni, Geology Property ni, Groundwater Depth Property ni, Gypsum Content Property ni, Gypsum Forms Property ni, Gypsum Weight Property ni, Human Influence Class Property ni, Infiltration Rate Class Property ni, Infiltration Rate Numeric Property ni, Koeppen Class Property ni, Land Use Class Property ni, Landform Complex Property ni, Lithology Property ni, MMajor Land Form Property ni, Mineral Conc Abundance Property ni, Mineral Conc Colour Property ni, Mineral Conc Hardness Property ni, Mineral Conc Kind Property ni, Mineral Conc Nature Property ni, Mineral Conc Shape Property ni, Mineral Conc Sizee Property ni, Mineral Conc Volume Property ni, Mineral Content Property ni, Mineral Fragments Property ni, Moist Consistency Property ni, Moisture Content Property ni, Mottles Abundance Property ni, Mottles Boundary Classification Property ni, Mottles Colour Property ni, Mottles Contrast Property ni, Mottles Presence Property ni, Mottles Size Property ni, Oxalate Extractable Optical Density Property ni, PParent Deposition Property ni, PParticle Size Fractions Sum Property ni, PPhysiography Property ni, Parent Lithology Property ni, Peat Decompostion Property ni, Peat Drainage Property ni, Peat Volume Property ni, Plasticity Property ni, Pores Abundance Property ni, Pores Size Property ni, Porosity Class Property ni, Profile Description Status Property ni, RRoots Presence Property ni, Rock Abundance Property ni, Rock Outcrops Cover Property ni, Rock Outcrops Distance Property ni, Rock Shape Property ni, Rock Size Property ni, Roots Abundance Property ni, SSalt Thickness Property ni, Salt Content Property ni, Salt Cover Property ni, Salt Presence Property ni, Salt Property ni, Sandy Texture Property ni, Sealing Consistence Property ni, Sealing Thickness Property ni, Shrubs Abundance Property ni, Slope Form Property ni, Slope Gradient Class Property ni, Slope Gradient Property ni, Slope Orientation Class Property ni, Slope Orientation Property ni, Slope Pathways Property ni, Soil Depth Bedrock Property ni, Soil Depth Property ni, Soil Depth Rootable Class Property ni, Soil Depth Rootable Property ni, Soil Depth Sampled Property ni, Soil Type Property ni, Soluble Anions Total Property ni, Soluble Cations Total Property ni, Stickiness Property ni, Structure Grade Property ni, Structure Size Property ni, Surface Age Property ni, Texture Lab Class Property ni, Texture Property ni, Tree Density Property ni, VVegetation Class Property ni, VVoids Classification Property ni, Voids Diameter Property ni, Weather Conditions Current Property ni, Weather Conditions Past Property ni, Weathering Fragments Property ni, Wet Plasticity Property ni

Code list class for PhysioChemicalProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/PhysioChemicalPropertyCode

This code list class provides the PhysioChemicalProperty codes.
ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
is equivalent to
{ Acidity - exchangeable , Acidity - extractable , Aluminium (Al) + 0.5 Fe oxalate , Aluminium (Al) - dithionite extractable , Aluminium (Al) exchangeable , Aluminium (Al) extractable , Aluminium (Al) - oxalate extractable , Aluminium (Al) - pyrophosphate extractable , Aluminium (Al) saturation , Aluminium (Al) total , Available water capacity - volumetric (FC to WP) , Base saturation - calculated , Bases - exchangeable , Base saturation - sum of cations , Boron (B) - extractable , Boron (B) - total , Bromide (Br-) - extractable , Bromite (BrO2-) , Bulk Density of the fine earth fraction , Bulk Density of the whole soil , Cation exchange capacity (CEC) , Carbon/Nitrogen (C/N) ratio , Cadmium (Cd) , Calcium (Ca++) - exchangeable , Calcium (Ca++) - extractable , Calcium carbonate equivalent - fraction , Calcium (Ca++) - soluble , Calcium (Ca++) - total , Carbonate (CO3--) - soluble , Carbon (C) - fulvic acid , Carbon (C) - humic acid , Carbon (C) - inorganic , Carbon (C) - organic , Carbon (C) - pyrophosphate extractable , Carbon (C) - total humic , Carbon (C) - total , Calcium carbonate equivalent - total , Chloride (Cl-) - soluble , Copper (Cu) - extractable , Copper (Cu) - total , Cation exchange capacity effective (ECEC) , Electrical conductivity , Gypsum content - weight , Hydrocarbonate (HCO3-) - soluble , Hydraulic conductivity , Hydrogen (H+) - exchangeable , Iron (Fe) - dithionite extractable , Iron (Fe) - extractable , Iron (Fe) - oxalate extractable , Iron (Fe) - pyrophosphate extractable , Iron (Fe) - total , Magnesium (Mg++) - exchangeable , Magnesium (Mg) - extractable , Magnesium (Mg++) - soluble , Magnesium (Mg) - total , Manganese (Mn) - KCl extractable , Manganese (Mn) - dithionite extractable , Manganese (Mn) - extractable , Manganese (Mn) - oxalate extractable , Manganese (Mn) - pyrophosphate extractable , Manganese (Mn) - total , Molybdenum , Nitrite (NO2-) - soluble , Nitrate (NO3-) - soluble , Nitrogen (N) - total , Organic matter , Phosphate (PO4---) - soluble , Phosphorus (P) - extractable , Phosphorus (P) - oxalate extractable , Phosphorus (P) - retention , Phosphorus (P) - total , Porosity , Potassium (K+) - exchangeable , Potassium (K) - extractable , Potassium (K+) - soluble , Potassium (K) - total , Selenium (Se) - extractable , Selenium (Se) - total , Silicon (Si) - oxalate extractable , Sodium (Na+) - exchangeable % , Sodium (Na+) - exchangeable , Sodium (Na) - extractable , Sodium (Na+) - soluble , Sodium (Na) - total , Soluble salts , Sulfate (SO4--) - soluble , Sulfur (S) - extractable , Sulfur (S) - total , Zinc (Zn) , Zinc (Zn) - extractable , pH - Hydrogen potential }
has super-classes
concept c, observable property c
has members
Acidity - exchangeable ni, Acidity - extractable ni, Aluminium (Al) + 0.5 Fe oxalate ni, Aluminium (Al) - dithionite extractable ni, Aluminium (Al) - oxalate extractable ni, Aluminium (Al) - pyrophosphate extractable ni, Aluminium (Al) exchangeable ni, Aluminium (Al) extractable ni, Aluminium (Al) saturation ni, Aluminium (Al) total ni, Available water capacity - volumetric (FC to WP) ni, Base saturation - calculated ni, Base saturation - sum of cations ni, Bases - exchangeable ni, Boron (B) - extractable ni, Boron (B) - total ni, Bromide (Br-) - extractable ni, Bromite (BrO2-) ni, Bulk Density of the fine earth fraction ni, Bulk Density of the whole soil ni, Cadmium (Cd) ni, Calcium (Ca++) - exchangeable ni, Calcium (Ca++) - extractable ni, Calcium (Ca++) - soluble ni, Calcium (Ca++) - total ni, Calcium carbonate equivalent - fraction ni, Calcium carbonate equivalent - total ni, Carbon (C) - fulvic acid ni, Carbon (C) - humic acid ni, Carbon (C) - inorganic ni, Carbon (C) - organic ni, Carbon (C) - pyrophosphate extractable ni, Carbon (C) - total ni, Carbon (C) - total humic ni, Carbon/Nitrogen (C/N) ratio ni, Carbonate (CO3--) - soluble ni, Cation exchange capacity (CEC) ni, Cation exchange capacity effective (ECEC) ni, Chloride (Cl-) - soluble ni, Copper (Cu) - extractable ni, Copper (Cu) - total ni, Electrical conductivity ni, Gypsum content - weight ni, Hydraulic conductivity ni, Hydrocarbonate (HCO3-) - soluble ni, Hydrogen (H+) - exchangeable ni, Iron (Fe) - dithionite extractable ni, Iron (Fe) - extractable ni, Iron (Fe) - oxalate extractable ni, Iron (Fe) - pyrophosphate extractable ni, Iron (Fe) - total ni, Magnesium (Mg) - extractable ni, Magnesium (Mg) - total ni, Magnesium (Mg++) - exchangeable ni, Magnesium (Mg++) - soluble ni, Manganese (Mn) - KCl extractable ni, Manganese (Mn) - dithionite extractable ni, Manganese (Mn) - extractable ni, Manganese (Mn) - oxalate extractable ni, Manganese (Mn) - pyrophosphate extractable ni, Manganese (Mn) - total ni, Molybdenum ni, Nitrate (NO3-) - soluble ni, Nitrite (NO2-) - soluble ni, Nitrogen (N) - total ni, Organic matter ni, Phosphate (PO4---) - soluble ni, Phosphorus (P) - extractable ni, Phosphorus (P) - oxalate extractable ni, Phosphorus (P) - retention ni, Phosphorus (P) - total ni, Porosity ni, Potassium (K) - extractable ni, Potassium (K) - total ni, Potassium (K+) - exchangeable ni, Potassium (K+) - soluble ni, Selenium (Se) - extractable ni, Selenium (Se) - total ni, Silicon (Si) - oxalate extractable ni, Sodium (Na) - extractable ni, Sodium (Na) - total ni, Sodium (Na+) - exchangeable ni, Sodium (Na+) - exchangeable % ni, Sodium (Na+) - soluble ni, Soluble salts ni, Sulfate (SO4--) - soluble ni, Sulfur (S) - extractable ni, Sulfur (S) - total ni, Zinc (Zn) ni, Zinc (Zn) - extractable ni, pH - Hydrogen potential ni

Code list class for SandProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/SandPropertyCode

This code list class provides the SandProperty codes.
ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
is equivalent to
{ Sand Water Dispersible 0.1 , Sand Water Dispersible 0.2 , Sand Water Dispersible 0.3 , Sand Water Dispersible 0.4 , Sand Water Dispersible 0.5 , Sand Water Dispersible Total }
has super-classes
concept c, observable property c
has members
Sand Water Dispersible 0.1 ni, Sand Water Dispersible 0.2 ni, Sand Water Dispersible 0.3 ni, Sand Water Dispersible 0.4 ni, Sand Water Dispersible 0.5 ni, Sand Water Dispersible Total ni

Code list class for SiltProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/SiltPropertyCode

This code list class provides the SiltProperty codes.
ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
is equivalent to
{ Silt Water Dispersible Fraction 0.1 , Silt Water Dispersible Fraction 0.2 , Silt Water Dispersible Fraction Total }
has super-classes
concept c, observable property c
has members
Silt Water Dispersible Fraction 0.1 ni, Silt Water Dispersible Fraction 0.2 ni, Silt Water Dispersible Fraction Total ni

Code list class for TextClayProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/TextClayPropertyCode

This code list class provides the TextClayProperty codes.
Eva Corral-Pazos-de-Provens, Ígor Rapp-Arrarás and Juan M. Domingo-Santos, Estimating textural fractions of the USDA using those of the International System: A quantile approach, Geoderma, Volume 416, 2022.
is equivalent to
{ Clay (< 0.002 mm) }
has super-classes
concept c, observable property c
has members
Clay (< 0.002 mm) ni

Code list class for TextSandProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/TextSandPropertyCode

This code list class provides the TextSandProperty codes.
ISO 14688-1:2017 Geotechnical investigation and testing — Identification and classification of soil ;S.J. Blott and K. Pye, Particle size scales and classification of sediment types based on particle size distributions: Review and recommended procedures, Sedimentology, 59 (7) (2012), pp. 2071-2096. ;International Society of Soil Science (ISSS), 1929. The minutes of the First Commission meetings, International Congress of Soil Science, Washington 1927. Proc. Int. Soc. Soil Sci. 4 (3), pp. 215–222.
is equivalent to
{ Sand (0.063 - 2 mm) , Sand (0.02 - 2 mm) , Sand (0.050 - 2 mm) , Coarse sand (0.63 - 2 mm) , Coarse sand (0.2 - 2 mm) , Coarse sand (0.5 - 1 mm) , Fine sand (0.063 - 0.2 mm) , Fine sand (0.125 - 0.2 mm) , Fine sand (0.1 - 0.25 mm) , Medium sand (0.2 - 0.63 mm) , Medium sand (0.2 - 0.63 mm) , Medium sand (0.25 - 0.5 mm) , Very coarse sand (1.25 - 2 mm) , Very coarse sand (1 - 2 mm) , Very fine sand (0.063 - 0.125 mm) , Very fine sand (0.05 - 0.1 mm) }
has super-classes
concept c, observable property c
has members
Coarse sand (0.2 - 2 mm) ni, Coarse sand (0.5 - 1 mm) ni, Coarse sand (0.63 - 2 mm) ni, Fine sand (0.063 - 0.2 mm) ni, Fine sand (0.1 - 0.25 mm) ni, Fine sand (0.125 - 0.2 mm) ni, Medium sand (0.2 - 0.63 mm) ni, Medium sand (0.2 - 0.63 mm) ni, Medium sand (0.25 - 0.5 mm) ni, Sand (0.02 - 2 mm) ni, Sand (0.050 - 2 mm) ni, Sand (0.063 - 2 mm) ni, Very coarse sand (1 - 2 mm) ni, Very coarse sand (1.25 - 2 mm) ni, Very fine sand (0.05 - 0.1 mm) ni, Very fine sand (0.063 - 0.125 mm) ni

Code list class for TextSiltProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/TextSiltPropertyCode

This code list class provides the TextSiltProperty codes.
ISO 14688-1:2017 Geotechnical investigation and testing — Identification and classification of soil ;S.J. Blott and K. Pye, Particle size scales and classification of sediment types based on particle size distributions: Review and recommended procedures, Sedimentology, 59 (7) (2012), pp. 2071-2096.
is equivalent to
{ Silt (0.002 - 0.063 mm) , Silt (0.002 - 0.02 mm) , Silt (0.002 - 0.05 mm) , Coarse silt (0.02 - 0.063 mm) , Coarse silt (0.02 - 0.05 mm) , Fine silt (0.002 - 0.0063 mm) , Fine silt (0.002 - 0.02 mm) , Medium silt (0.0063 - 0.02 mm) }
has super-classes
concept c, observable property c
has members
Coarse silt (0.02 - 0.05 mm) ni, Coarse silt (0.02 - 0.063 mm) ni, Fine silt (0.002 - 0.0063 mm) ni, Fine silt (0.002 - 0.02 mm) ni, Medium silt (0.0063 - 0.02 mm) ni, Silt (0.002 - 0.02 mm) ni, Silt (0.002 - 0.05 mm) ni, Silt (0.002 - 0.063 mm) ni

Code list class for WaterRetentionProperty - codelist classc back to ToC or Class ToC

IRI: http://w3id.org/glosis/model/codelists/properties/WaterRetentionPropertyCode

This code list class provides the WaterRetentionProperty codes.
ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
is equivalent to
{ Water Retention Gravimetric , Water Retention Gravimetric 10 kPa , Water Retention Gravimetric 100 kPa , Water Retention Gravimetric 1500 kPa , Water Retention Gravimetric 200 kPa , Water Retention Gravimetric 33 kPa , Water Retention Gravimetric 500 kPa , Water Retention Gravimetric 6 kPa , Water Retention Volumetric , Water Retention Volumetric 10 kPa , Water Retention Volumetric 100 kPa , Water Retention Volumetric 1500 kPa , Water Retention Volumetric 200 kPa , Water Retention Volumetric 33 kPa , Water Retention Volumetric 500 kPa , Water Retention Volumetric 6 kPa }
has super-classes
concept c, observable property c
has members
Water Retention Gravimetric ni, Water Retention Gravimetric 10 kPa ni, Water Retention Gravimetric 100 kPa ni, Water Retention Gravimetric 1500 kPa ni, Water Retention Gravimetric 200 kPa ni, Water Retention Gravimetric 33 kPa ni, Water Retention Gravimetric 500 kPa ni, Water Retention Gravimetric 6 kPa ni, Water Retention Volumetric ni, Water Retention Volumetric 10 kPa ni, Water Retention Volumetric 100 kPa ni, Water Retention Volumetric 1500 kPa ni, Water Retention Volumetric 200 kPa ni, Water Retention Volumetric 33 kPa ni, Water Retention Volumetric 500 kPa ni, Water Retention Volumetric 6 kPa ni

Named Individuals

Acidity - exchangeableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Aciexc

Exchangeable acidity represents the amount of hydrogen (H⁺) and aluminum (Al³⁺) ions adsorbed onto soil particles that can be exchanged with the soil solution. It is a key factor in determining soil liming requirements and improving nutrient availability in acidic soils. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Acidity - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Aciext

Extractable acidity measures the active acidity in soil, including hydrogen ions in the soil solution and weakly bound to colloids. It is critical for assessing lime requirements and addressing soil pH imbalances to improve plant growth. Source: Soil Chemistry by Bohn et al. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Aluminium (Al) + 0.5 Fe oxalateni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Alu

Sum of the oxalate-extractable aluminium concentration plus half the oxalate-extractable iron concentration ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Aluminium (Al) - dithionite extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Aludit

'Free' aluminium content extracted from amorphous compounds (weathering products) as well as crystaline, primary aluminium compounds (parent material) in the soil. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Aluminium (Al) - oxalate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Aluoxa

'Active' aluminium content extracted from amorphous aluminium compounds that are the products of the weathering of primary soil particles ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Aluminium (Al) - pyrophosphate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Alupyr

Aluminium in soil that is organically bound in organo-metal complexes ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Aluminium (Al) exchangeableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Aluexc

Aluminium ions bound to exchange surfaces in the soil such as clay minerals and organic matter that can be released to the soil solution upon exchange ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Aluminium (Al) extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Aluext

Aluminium bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Aluminium (Al) saturationni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Alusat

Measure to describe the relative abundance of alumium in the soil. It is the percentage of the CEC occupied by aluminium ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Aluminium (Al) totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Alutot

Total concentration of aluminium in the soil, including both soluble and insoluble forms, typically measured after complete digestion of the soil sample. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Available water capacity - volumetric (FC to WP)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Avavol

Available water capacity (AWC) measures the volume of water soil can retain between field capacity and the permanent wilting point. It represents the water accessible to plants for uptake. High AWC supports better plant growth, while low AWC may necessitate irrigation. Source: USDA NRCS. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Bare Cover Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-bareCoverAbundanceProperty

Bare Cover Abundance Property refers to the extent of land area without vegetation or artificial cover, such as bare soil or rocky surfaces. High proportions of bare cover increase the risk of soil erosion and desertification, particularly in areas with poor vegetation or human disturbance. Source: FAO, 'Land Use and Land Cover Classification' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Base saturation - calculatedni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Bascal

Base saturation represents the percentage of the soil's cation exchange capacity (CEC) occupied by basic cations such as calcium (Ca²⁺), magnesium (Mg²⁺), potassium (K⁺), and sodium (Na⁺). Higher base saturation typically correlates with higher fertility and a greater ability to supply essential nutrients to plants. This parameter also influences soil pH buffering capacity. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Base saturation - sum of cationsni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Bassum

Base saturation calculated as the sum of cations represents the proportion of the cation exchange capacity (CEC) occupied by essential base cations like calcium, magnesium, potassium, and sodium. It provides insight into the soil's fertility status and its ability to resist acidification. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Bases - exchangeableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Basexc

Exchangeable bases refer to the cations (e.g., calcium, magnesium, potassium, and sodium) adsorbed onto soil colloids, which can readily exchange with soil solution ions. These cations are crucial for maintaining soil fertility, affecting nutrient availability and pH buffering capacity. High exchangeable base levels indicate fertile soil conducive to plant growth. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Biological Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-biologicalAbundanceProperty

The Biological Abundance Property evaluates the presence and quantity of soil organisms, such as microbes, insects, and earthworms. This property reflects soil health, nutrient cycling, and organic matter decomposition, which are vital for maintaining soil fertility. Source: Lavelle, P., & Spain, A.V. (2001). Soil Ecology. Guidelines for Soil Description issued by the FAO: table 81
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Biological Features Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-biologicalFeaturesProperty

The Biological Features Property examines qualitative aspects of soil biological activity, including the types of organisms present, their diversity, and their roles in soil ecosystems. It encompasses processes like nitrogen fixation, organic matter decomposition, and bioturbation. Source: Soil Science Society of America (SSSA) Glossary. Guidelines for Soil Description issued by the FAO: table 82
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Bleached Sand Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-bleachedSandProperty

The Bleached Sand property refers to the physical characteristic of sandy soil that has undergone a bleaching process due to leaching, where minerals such as iron and other elements have been removed by water. This process often occurs in areas with high rainfall, leading to a soil that appears lighter in color. Bleached sand typically indicates low fertility and poor nutrient-holding capacity due to the lack of iron and other nutrients that are washed away. Source: Brady, N. C., & Weil, R. R. (2008). The Nature and Properties of Soils (14th ed.). Pearson Prentice Hall. Guidelines for Soil Description issued by the FAO: table 23
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Boron (B) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Borext

Boron bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Boron (B) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Bortot

Total boron includes all boron forms in soil, crucial for plant cell wall formation and reproductive processes. Deficiency can impair growth, while toxicity is a risk in arid soils or with excessive irrigation. Source: Havlin et al. (2014). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Boundary Distinctness Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-boundaryDistinctnessProperty

The Boundary Distinctness Property describes the sharpness of transitions between soil horizons. Boundaries can range from abrupt (clear demarcation) to diffuse (gradual blending), providing insights into soil formation processes and profile development. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 24.1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Boundary Topography Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-boundaryTopographyProperty

The Boundary Topography Property characterizes the shape of soil horizon boundaries, which may be smooth, wavy, irregular, or broken. It reflects processes like erosion, deposition, or biological activity that influence horizon development. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 24,2
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Bromide (Br-) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Brod

Bromide bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Bromite (BrO2-)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Brot

Bromite (BrO₂⁻) is a rare intermediate oxidation state of bromine, generally not prevalent in natural soils. It may arise under specific chemical or environmental conditions and is of limited importance in typical soil science contexts. Source: Environmental Chemistry Textbooks. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Bulk Density Mineral Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-bulkDensityMineralProperty

The Bulk Density of Mineral Soil refers specifically to the density of the mineral portion of the soil, excluding organic matter. It provides insights into the physical state and compaction of mineral-dominated soils, influencing water movement and root growth. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. Guidelines for Soil Description issued by the FAO: table 58
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Bulk Density of the fine earth fractionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-BulDfine

This parameter measures the bulk density of the soil fraction smaller than 2 mm (excluding rocks and coarse fragments). It is used to assess the physical properties of soil related to root growth, water movement, and compaction. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Bulk Density of the whole soilni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-BulDwhole

Bulk density measures the mass of soil per unit volume, including both solids and pore spaces. It is a critical parameter for assessing soil compaction, porosity, and water infiltration capacity. High bulk density often indicates poor aeration and root penetration, while low values are associated with high organic matter content and good structure. Source: USDA NRCS. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Bulk Density Peat Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-bulkDensityPeatProperty

The Bulk Density of Peat measures the mass of dry organic soil (peat) per unit volume. Peat soils typically have low bulk density due to their high organic matter content and porosity, which significantly affects their water retention and drainage characteristics. Source: Rydin, H., & Jeglum, J. (2006). The Biology of Peatlands. Guidelines for Soil Description issued by the FAO: table 59,3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Cadmium (Cd)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Cad

Cadmium is a heavy metal present in trace amounts in soils, often introduced through industrial pollution or phosphate fertilizers. It is toxic to plants, animals, and humans even at low concentrations. Monitoring cadmium levels is crucial to ensure soil safety and reduce contamination risks in the food chain. Source: Sparks, D.L. (2003). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Calcium (Ca++) - exchangeableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Calexc

Calcium bound to exchange surfaces in the soil such as clay minerals and organic matter that can be released to the soil solution upon exchange ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Calcium (Ca++) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Calext

Calcium bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Calcium (Ca++) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Calsol

Soluble Calcium cations accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Calcium (Ca++) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Caltot

Total calcium in soil includes all forms, from exchangeable calcium to calcium in minerals. It is essential for plant cell wall structure, enzyme activation, and soil aggregation. Calcium levels influence soil pH and nutrient availability. Source: Havlin et al. (2014). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Calcium carbonate equivalent - fractionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Calfra

This term quantifies the fraction of calcium carbonate (CaCO₃) in soil, indicating its lime content. Calcium carbonate acts as a pH buffer, neutralizing soil acidity and enhancing nutrient availability. High levels improve soil structure and aggregate stability, making it especially valuable for acidic soils. Source: FAO Soil Bulletin. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Calcium carbonate equivalent - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Ccetot

The total calcium carbonate equivalent measures the full capacity of soil to neutralize acidity, considering all forms of carbonate and bicarbonate minerals. It is essential for managing soil pH and nutrient availability in acidic soils. Source: FAO Soil Bulletin. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbon (C) - fulvic acidni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Carful

Fulvic acid carbon is the most soluble and bioavailable fraction of soil organic matter. It plays a significant role in improving nutrient uptake, soil structure, and microbial activity, thereby enhancing soil productivity. Source: Stevenson, F.J. (1994). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbon (C) - humic acidni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Carhum

Humic acid carbon is part of the soil organic matter, forming during the decomposition of plant and animal residues. It enhances nutrient retention, soil structure, and water-holding capacity, playing a vital role in maintaining soil fertility and resilience. Source: Stevenson, F.J. (1994). Humus Chemistry: Genesis, Composition, Reactions. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbon (C) - inorganicni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Carinorg

Inorganic carbon in soil primarily consists of carbonates like calcium carbonate and magnesium carbonate. It contributes to soil pH buffering and is a significant feature of arid and calcareous soils. Excess inorganic carbon can immobilize certain nutrients, requiring careful management in agricultural systems. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbon (C) - organicni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Carorg

Organic carbon refers to the carbon component of soil organic matter, derived from decomposed plant and microbial residues. It serves as a key energy source for soil microbes and influences nutrient cycling, soil structure, and water retention. Organic carbon is a primary indicator of soil fertility and health. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbon (C) - pyrophosphate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Carpyr

Carbon in soil that is organically bound in organo-metal complexes ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbon (C) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Cartot

Total carbon in soil includes both organic carbon (from plant and microbial residues) and inorganic carbon (primarily carbonates). It is a fundamental component of soil organic matter, influencing soil fertility, structure, and water retention. High carbon levels are associated with better soil health and productivity. Source: USDA NRCS. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbon (C) - total humicni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Cartoh

Total humic carbon represents the stable fraction of soil organic matter derived from humified materials. It improves soil structure, nutrient retention, and water-holding capacity, making it critical for long-term soil health and productivity. Source: Stevenson, F.J. (1994). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbon/Nitrogen (C/N) rationi back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-CaN

The C/N ratio represents the proportion of carbon to nitrogen in organic matter. It influences decomposition rates and nutrient availability. A lower C/N ratio promotes rapid organic matter breakdown and nitrogen release, while a high ratio may lead to nitrogen immobilization, affecting plant growth. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbonate (CO3--) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Car

Soluble carbonates contribute to soil alkalinity and act as a pH buffer. They play a role in nutrient availability, particularly in arid and semi-arid regions, but excessive carbonates can immobilize certain nutrients like phosphorus and iron. Source: Soil Chemistry by Bohn et al. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Carbonates Content Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-carbonatesContentProperty

The Carbonates Content Property quantifies the concentration of carbonate minerals (e.g., CaCO₃, MgCO₃) in soil. These compounds influence soil pH, fertility, and structure, and are prevalent in calcareous soils. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. Guidelines for Soil Description issued by the FAO: table 38
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Carbonates Forms Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-carbonatesFormsProperty

The Carbonates Forms Property describes the types of carbonate minerals present in soil, such as calcite, dolomite, or aragonite. These forms impact soil chemistry, fertility, and physical characteristics differently depending on their composition and solubility. Source: Sparks, D.L. (2003). Environmental Soil Chemistry. Guidelines for Soil Description issued by the FAO: table 39
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Code list class for DescriptiveProperty - codelist class c
concept c

Cation exchange capacity (CEC)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-CEC

CEC measures the soil’s ability to hold and exchange positively charged ions (cations). It is a critical indicator of soil fertility, as higher CEC values imply greater capacity to retain essential nutrients like calcium, magnesium, and potassium. Clayey and organic-rich soils typically exhibit higher CEC. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Cation exchange capacity effective (ECEC)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-ECEC

ECEC is the sum of exchangeable cations in soil at its natural pH. It provides a measure of the soil’s fertility under acidic conditions, as it considers both base cations and exchangeable aluminum. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Cation Exchange Capacity Effective Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cationExchangeCapacityEffectiveProperty

The Effective Cation Exchange Capacity (ECEC) measures the ability of soil to hold and exchange cations at a given pH, often near field conditions. It provides insight into soil fertility, nutrient availability, and buffering capacity in acidic soils. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Cation Exchange Capacity Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cationExchangeCapacityProperty

The Cation Exchange Capacity (CEC) measures the soil's total capacity to hold and exchange positively charged ions (cations). It is influenced by clay and organic matter content and is a critical indicator of soil fertility and nutrient retention. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Cations Sum Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cationsSumProperty

The Cations Sum Property calculates the total concentration of exchangeable cations (e.g., Ca²⁺, Mg²⁺, K⁺, Na⁺) in the soil. It helps determine soil fertility and salinity and is commonly expressed in milliequivalents per 100 grams of soil. Source: Soil Science Society of America (SSSA) Glossary. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Cementation Continuity Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cementationContinuityProperty

The Cementation Continuity Property describes the extent to which soil particles are bound together by cementing agents, such as calcium carbonate, iron oxides, or silica. Cementation affects soil permeability, root penetration, and the development of soil horizons. Continuity can be classified as continuous, discontinuous, or patchy. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 69
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Cementation Degree Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cementationDegreeProperty

The Cementation Degree Property measures how strongly soil particles are bonded by cementing agents. It ranges from weakly cemented (friable) to strongly cemented (hard). This property influences soil strength and its suitability for agricultural and engineering purposes. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 72
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Cementation Fabric Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cementationFabricProperty

The Cementation Fabric Property examines the texture, structure, and arrangement of cementing materials within the soil. It provides insights into soil formation processes and the mechanical stability of the soil matrix. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 70
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Cementation Nature Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cementationNatureProperty

The Cementation Nature Property identifies the specific type of material responsible for binding soil particles, such as carbonates, silica, or iron oxides. Understanding this helps in soil classification and predicting behavior under varying environmental conditions. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 71
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Code list class for DescriptiveProperty - codelist class c
concept c

Chloride (Cl-) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Chl

Soluble Chloride anions accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Clay (< 0.002 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textClayPropertyCode-Cl

Very fine mineral particles smaller than 2 µm
belongs to
Code list class for TextClayProperty - codelist class c
concept c

Clay Carbonateni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/clayPropertyCode-CC

Clay carbonate refers to clay particles that are associated with or contain carbonate minerals, particularly calcium carbonate (CaCO₃). These carbonates are typically present in soils with higher pH (alkaline soils), and they play a significant role in buffering soil acidity. Clay-carbonate soils are found in regions with semi-arid and arid climates, where evaporation exceeds precipitation. These soils can have distinct properties, including a lower cation exchange capacity compared to non-carbonate soils and an ability to neutralize soil acidity, influencing both soil fertility and plant growth. Source: Brady & Weil (2017), The Nature and Properties of Soils.
belongs to
Code list class for ClayProperty - codelist class c
concept c

Clay Non-Carbonateni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/clayPropertyCode-CNC

Clay non-carbonate refers to the fraction of clay particles in soil that do not contain carbonates. Clay particles are very fine mineral components that contribute to the soil's texture and are typically smaller than 0.002 mm in diameter. The term non-carbonate implies that these clay particles are not associated with carbonate minerals, such as calcium carbonate (lime), which are commonly found in soils in arid or semi-arid regions. Non-carbonate clay soils are often more acidic, with higher cation exchange capacity, and may require different management practices, especially for nutrient availability and soil pH control. Source: Brady & Weil (2017), The Nature and Properties of Soils.
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Code list class for ClayProperty - codelist class c
concept c

Clay Water Dispersibleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/clayPropertyCode-CWT

Clay water dispersible refers to the portion of clay particles in soil that can be dispersed into water, forming a suspension when the soil is wetted. This characteristic is significant in assessing soil stability, particularly in the presence of water. Water-dispersible clays can lead to erosion problems, as the particles are more easily detached and transported by water. This term is important in understanding soil erodibility, especially in soils with high clay content that are prone to degradation when subjected to rainfall or irrigation. The dispersibility of clay affects both the physical structure and water-holding capacity of the soil. Source: Soil Science Society of America.
belongs to
Code list class for ClayProperty - codelist class c
concept c

Coarse sand (0.2 - 2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-cSa_ISSS

Content of mineral particles with sizes between 0.2-2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Coarse sand (0.5 - 1 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-cSa_USDA

Content of mineral particles with sizes between 0.5-1 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Coarse sand (0.63 - 2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-cSa_ISO

Content of mineral particles with sizes between 0.63-2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Coarse silt (0.02 - 0.05 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSiltPropertyCode-cSi_USDA

Content of mineral particles with sizes between 20-50 µm in soil
belongs to
Code list class for TextSiltProperty - codelist class c
concept c

Coarse silt (0.02 - 0.063 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSiltPropertyCode-cSi_ISO

Content of mineral particles with sizes between 20-63 µm in soil
belongs to
Code list class for TextSiltProperty - codelist class c
concept c

Coating Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-coatingAbundanceProperty

The Coating Abundance Property evaluates the quantity of coatings on soil particles, such as organic matter, clay, or iron oxides. Coatings influence soil color, nutrient availability, and water movement. The abundance is typically classified as few, common, or many. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. Guidelines for Soil Description issued by the FAO: table 64
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Coating Contrast Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-coatingContrastProperty

The Coating Contrast Property assesses the visual distinction between coatings on soil particles and the underlying material. High contrast indicates significant differences in composition or color, providing clues about soil processes like illuviation or biological activity. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 65
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Coating Form Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-coatingFormProperty

The Coating Form Property describes the shape and distribution of coatings on soil particles, such as patchy, continuous, or layered. These forms are indicative of soil genesis and chemical weathering processes. Source: Soil Science Society of America (SSSA) Glossary. Guidelines for Soil Description issued by the FAO: table 67
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Coating Location Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-coatingLocationProperty

The Coating Location Property identifies where coatings are found within the soil profile, such as along root channels, pore spaces, or on particle Layer-Horizons. This property helps determine the movement of water and nutrients in the soil. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. Guidelines for Soil Description issued by the FAO: table 68
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Coating Nature Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-coatingNatureProperty

The Coating Nature Property examines the composition of soil coatings, such as organic, clay, or iron-rich coatings. The nature of these coatings can influence nutrient retention, soil color, and water dynamics. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. Guidelines for Soil Description issued by the FAO: table 66
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Code list collection for ClayProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/ClayPropertyCollection

ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
collection c

Code list collection for DescriptiveProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/DescriptivePropertyCollection

Africa Soil Profiles Database Version 1.2. ISRIC Report 2014/01. Guidelines for Soil Description issued by the FAO. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System.
belongs to
collection c

Code list collection for PhysioChemicalProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/PhysioChemicalPropertyCollection

ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
collection c

Code list collection for SandProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/SandPropertyCollection

ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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collection c

Code list collection for SiltProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/SiltPropertyCollection

ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
collection c

Code list collection for TextClayProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/TextClayPropertyCollection

Eva Corral-Pazos-de-Provens, Ígor Rapp-Arrarás and Juan M. Domingo-Santos, Estimating textural fractions of the USDA using those of the International System: A quantile approach, Geoderma, Volume 416, 2022.
belongs to
collection c

Code list collection for TextSandProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/TextSandPropertyCollection

ISO 14688-1:2017 Geotechnical investigation and testing — Identification and classification of soil ;S.J. Blott and K. Pye, Particle size scales and classification of sediment types based on particle size distributions: Review and recommended procedures, Sedimentology, 59 (7) (2012), pp. 2071-2096. ;International Society of Soil Science (ISSS), 1929. The minutes of the First Commission meetings, International Congress of Soil Science, Washington 1927. Proc. Int. Soc. Soil Sci. 4 (3), pp. 215–222.
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collection c

Code list collection for TextSiltProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/TextSiltPropertyCollection

ISO 14688-1:2017 Geotechnical investigation and testing — Identification and classification of soil ;S.J. Blott and K. Pye, Particle size scales and classification of sediment types based on particle size distributions: Review and recommended procedures, Sedimentology, 59 (7) (2012), pp. 2071-2096.
belongs to
collection c

Code list collection for WaterRetentionProperty - codelist collectionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/WaterRetentionPropertyCollection

ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
collection c

Code list for Glosis properties - codelist schemeni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/

belongs to
concept scheme c

Colour Dry Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-colourDryProperty

The Colour Dry property describes the color of soil when it is in a dry state. Soil color in the dry condition is influenced by the soil’s mineral composition and moisture content. For example, soils with high organic matter content typically appear dark brown or black when dry, while sandy or saline soils may appear lighter in color. Dry soil color is used in soil classification and can provide insights into the soil's composition and drainage. Source: Soil Science Society of America. (2008). Soil Science Glossary. Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Colour Moist Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-colourMoistProperty

The Colour Moist property refers to the soil's color when it is in a wet or moist condition. Moisture enhances the color intensity of the soil, which is often darker compared to its dry state. This is particularly helpful in determining organic matter content, iron oxide presence, and soil moisture retention. For instance, moist soils with abundant organic material tend to appear darker, whereas more mineral-rich soils can appear lighter in color. Source: Soil Science Society of America. (2008). Soil Science Glossary. Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Consistence Dry Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-consistenceDryProperty

The Consistence Dry Property evaluates the soil's behavior when dry, including its resistance to deformation or crumbling. It ranges from loose to hard and provides information about soil compaction and management practices. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 53
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Consistence Moist Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-consistenceMoistProperty

The Consistence Moist Property assesses how soil responds to pressure when moist. Categories include friable, firm, or plastic. This property is essential for understanding soil workability and water retention. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 54
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Code list class for DescriptiveProperty - codelist class c
concept c

Copper (Cu) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Copext

Copper bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Copper (Cu) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Coptot

Total copper comprises all soil copper, including bound and free forms. Copper is vital for plant enzyme activation and metabolic processes. Deficiencies can lead to reduced growth and yields, while excess copper may inhibit root development. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Cracks Depth Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cracksDepthProperty

The Cracks Depth property refers to the measurement of the vertical depth of cracks formed in soil, which is typically observed in dry conditions when the soil shrinks. Cracks are more common in clayey soils that experience significant shrinkage upon drying. The depth of these cracks can indicate soil moisture levels, compaction, and the ability of the soil to expand and contract, which affects water infiltration and root penetration. Source: McSweeney, K. (2009). Soil and Water Conservation Handbook. CRC Press. Guidelines for Soil Description issued by the FAO: table 21,2
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Cracks Distance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cracksDistanceProperty

The Cracks Distance property refers to the horizontal spacing between cracks in the soil Layer-Horizon, which can occur due to the shrinkage of soil as it dries. Cracks form when water content decreases, and their distance is an indicator of the soil's shrink-swell behavior. Larger distances between cracks generally indicate more severe soil shrinkage, which can affect root growth and water infiltration. Source: McSweeney, K. (2009). Soil and Water Conservation Handbook. CRC Press. Guidelines for Soil Description issued by the FAO: table 21,3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Cracks Width Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cracksWidthProperty

The Cracks Width property refers to the measurement of the gap or space between the sides of soil cracks. The width of these cracks is typically influenced by soil moisture content and texture. Wider cracks are indicative of drier conditions and are commonly found in soils with high clay content, which tend to shrink and form deep cracks when the moisture content is reduced. Source: McSweeney, K. (2009). Soil and Water Conservation Handbook. CRC Press. Guidelines for Soil Description issued by the FAO: table 21,1
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Code list class for DescriptiveProperty - codelist class c
concept c

Crop Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-cropClassProperty

Crop Class Property refers to the categorization of land based on the type of crops cultivated. This property is used to assess soil management practices and land productivity, as different crops require specific soil conditions for optimal growth. Source: FAO, 'Guidelines for Soil Profile Description' Guidelines for Soil Description issued by the FAO: table 9
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Dry Consistency Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-dryConsistencyProperty

The Dry Consistency Property is synonymous with the Consistence Dry Property, focusing on the soil's resistance to breaking apart or deforming when dry. It indicates the soil's mechanical strength and susceptibility to erosion. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Electrical conductivityni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Eleccond

Electrical conductivity (EC) measures the ability of soil to conduct an electrical current, which is directly related to the concentration of soluble salts. It is an essential indicator of soil salinity and is used to assess soil's suitability for crop growth. High EC levels can reduce plant water uptake and affect germination, while low levels indicate low salinity and better soil health. Source: USDA NRCS. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Erosion Activity Period Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-erosionActivityPeriodProperty

Erosion Activity Period Property refers to the time frame during which soil erosion processes, such as wind or water erosion, are most active in a given area. This period is influenced by climatic conditions, seasonal rainfall, and land use, and it helps in assessing the vulnerability of soils to degradation. Source: USDA NRCS, 'Soil Erosion and Conservation' Guidelines for Soil Description issued by the FAO: table 19
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Erosion Area Affected Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-erosionAreaAffectedProperty

Erosion Area Affected Property refers to the extent of land area that has been impacted by erosion processes, such as water or wind erosion. This property is important for evaluating the severity of soil degradation in a given region and helps in identifying areas that require soil conservation measures. Source: USDA NRCS, 'Soil Erosion Research and Technology Transfer' Guidelines for Soil Description issued by the FAO: table 17
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Erosion Category Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-erosionCategoryProperty

Erosion Category Property classifies the type and severity of erosion in a given area. Categories are often based on the nature of the erosive forces (e.g., water, wind) and the degree of soil loss, ranging from slight to severe. This classification aids in prioritizing conservation efforts and understanding the potential impacts on soil quality. Source: FAO, 'Soil Erosion and Conservation' Guidelines for Soil Description issued by the FAO: table 16
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Erosion Degree Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-erosionDegreeProperty

Erosion Degree Property refers to the level of intensity or severity of soil erosion in an area, categorized into classes such as slight, moderate, or severe. The degree of erosion helps in assessing the extent of soil degradation and informs decisions on soil conservation and land management. Source: FAO, 'Soil Erosion and Conservation' Guidelines for Soil Description issued by the FAO: table 18
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Erosion Total Area Affected Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-erosionTotalAreaAffectedProperty

Erosion Total Area Affected Property quantifies the total land area affected by erosion processes. It is an important measure in understanding the broader impact of erosion on soil health, productivity, and ecosystem services across a landscape. Source: USDA NRCS, 'Soil Erosion and Landscape Analysis' Guidelines for Soil Description issued by the FAO: table 17
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Fine sand (0.063 - 0.2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-fSa_ISO

Content of mineral particles with sizes between 0.063-0.2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Fine sand (0.1 - 0.25 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-fSa_USDA

Content of mineral particles with sizes between 0.1-0.25 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Fine sand (0.125 - 0.2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-fSa_ISSS

Content of mineral particles with sizes between 0.02-0.2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Fine silt (0.002 - 0.0063 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSiltPropertyCode-fSi_ISO

Content of mineral particles with sizes between 2-6.3 µm in soil
belongs to
Code list class for TextSiltProperty - codelist class c
concept c

Fine silt (0.002 - 0.02 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSiltPropertyCode-fSi_USDA

Content of mineral particles with sizes between 2-20 µm in soil
belongs to
Code list class for TextSiltProperty - codelist class c
concept c

Flood Duration Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-floodDurationProperty

Flood Duration Property refers to the length of time during which an area is inundated by floodwaters. The duration of flooding can significantly affect soil structure, nutrient availability, and plant growth, especially in flood-prone regions. Source: USGS, 'Floodplain Management' Guidelines for Soil Description issued by the FAO: table 174
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Flood Frequency Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-floodFrequencyProperty

Flood Frequency Property refers to how often flooding occurs in a particular area, typically expressed in terms of recurrence intervals (e.g., once every 10 years). This property is vital for assessing flood risk, soil erosion, and the potential for soil nutrient loss due to repeated flooding events. Source: USGS, 'Floodplain Management' Guidelines for Soil Description issued by the FAO: table 174
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Forest Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-ForestAbundanceProperty

Forest Abundance Property refers to the proportion or extent of land covered by forest vegetation in a given area. It is often quantified as the percentage of land area dominated by tree species, reflecting the ecological importance of forests in influencing soil fertility, moisture retention, and biodiversity. Forested areas typically contribute to soil formation and stabilization through leaf litter and root systems that reduce erosion. Source: FAO, 'Forest Resources Assessment' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Fragment Cover Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-fragmentCoverProperty

The Fragment Cover property describes the proportion of the soil Layer-Horizon covered by coarse fragments such as rocks, stones, or other large particles. This property is important because a high fragment cover can reduce soil erosion but may also interfere with water infiltration and root growth. Fragment cover is often used as an indicator of soil stability and erosion potential. Source: FAO (2006). Guidelines for Soil Description (4th ed.). Food and Agriculture Organization of the United Nations. Guidelines for Soil Description issued by the FAO: table 15,1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Fragments Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-fragmentsClassProperty

The Fragments Class Property categorizes the size, shape, and quantity of coarse fragments (e.g., gravel, stones) present in the soil. These fragments affect soil porosity, water retention, and root penetration. The classification includes gravelly, stony, or bouldery soils. Source: Soil Survey Manual (USDA, 2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Fragments Size Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-fragmentsSizeProperty

The Fragments Size property refers to the dimensions of rock or mineral fragments present in the soil. These fragments are categorized based on their size, ranging from small gravel particles to larger stones and boulders. Larger fragments tend to reduce soil fertility, inhibit root growth, and decrease water retention. Smaller fragments, in contrast, contribute to soil texture and permeability. Source: Soil Science Society of America. (2008). Soil Science Glossary. Soil Science Society of America. Guidelines for Soil Description issued by the FAO: table 15,2
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Geology Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-geologyProperty

Geology Property refers to the underlying geological composition of an area, including rock types, mineral content, and geological processes. The geology of a region influences soil formation, structure, fertility, and drainage properties. Source: AGI, 'Encyclopedia of Geology' Guidelines for Soil Description issued by the FAO: table 12
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

GGrass Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-GrassAbundanceProperty

Grass Abundance Property indicates the extent or percentage of land covered by grasses or herbaceous plants. This property is important for understanding land productivity, grazing capacity, and soil health, as grasses play a key role in preventing soil erosion, enhancing organic matter content, and maintaining soil structure. Source: FAO, 'Grassland Ecosystems and Management' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Groundwater Depth Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-groundwaterDepthProperty

Groundwater Depth Property indicates the depth from the soil surface to the water table, which affects soil moisture levels, plant growth, and root penetration. Shallow groundwater can influence soil salinity and nutrient availability, while deep groundwater may limit water access for plants. Source: USDA NRCS, 'Groundwater and Soil' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Gypsum content - weightni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Gyp

The gypsum content, expressed as weight, refers to the soil’s calcium sulfate levels. Gypsum improves soil structure, alleviates sodicity, and enhances water infiltration. It is commonly applied to saline-sodic soils for reclamation. Source: FAO Soil Bulletin. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Gypsum Content Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-gypsumContentProperty

The Gypsum Content Property quantifies the amount of gypsum (calcium sulfate dihydrate) present in the soil. Gypsum affects soil structure, water infiltration, and nutrient availability, especially in arid and semi-arid regions. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 40
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Gypsum Forms Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-gypsumFormsProperty

The Gypsum Forms Property describes the morphology of gypsum within the soil, such as crystals, veins, or nodules. The form indicates the processes of soil formation and water movement in gypsum-rich soils. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 41
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Gypsum Weight Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-gypsumWeightProperty

The Gypsum Weight Property measures the mass of gypsum in the soil profile. This value helps evaluate the potential for soil salinity issues and influences decisions for agricultural or land reclamation practices. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Human Influence Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-humanInfluenceClassProperty

Human Influence Class Property classifies the extent of human impact on a landscape or ecosystem, ranging from minimal disturbance to high levels of modification. This classification helps in understanding the effects of urbanization, agriculture, or industrial activity on soil properties and ecosystem functions. Source: FAO, 'Land Degradation Assessment in Drylands' Guidelines for Soil Description issued by the FAO: table 10
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Hydraulic conductivityni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Hydcond

Hydraulic conductivity refers to the rate at which water moves through soil pores under a unit hydraulic gradient. It reflects the soil's ability to transmit water, influenced by texture, structure, and porosity. Soils with high hydraulic conductivity, like sandy soils, allow rapid water movement, while clayey soils exhibit slower water flow. This property is critical for understanding water infiltration, drainage, and irrigation management. Source: Brady, N.C., & Weil, R.R. (2017). The Nature and Properties of Soils. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Hydrocarbonate (HCO3-) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Hyd

Soluble Hydrocarbonate anions accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Hydrogen (H+) - exchangeableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Hydexc

Hydrogen ions bound to exchange surfaces in the soil such as clay minerals and organic matter that can be released to the soil solution upon exchange ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Infiltration Rate Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-infiltrationRateClassProperty

The Infiltration Rate Class property classifies the soil’s ability to absorb water based on observed infiltration rates. This classification is typically divided into categories like slow, moderate, or rapid infiltration, based on how quickly water is absorbed into the soil. It is an essential property for understanding drainage, runoff, and irrigation needs. Source: Hillel, D. (2004). Introduction to Soil Physics. Academic Press. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Infiltration Rate Numeric Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-infiltrationRateNumericProperty

The Infiltration Rate Numeric property provides a quantitative measure of the rate at which water enters the soil, usually expressed in units such as millimeters per hour (mm/h). This numeric value is essential for determining soil permeability, irrigation management, and runoff prediction. Higher infiltration rates indicate well-drained soils, while lower rates suggest compacted or clay-rich soils. Source: Bouwer, H. (2000). Integrated Water Management for the 21st Century. Water Resources Research. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Iron (Fe) - dithionite extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Irodit

'Free' iron content extracted from amorphous compounds (weathering products) as well as crystaline, primary aluminium compounds (parent material) in the soil. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Iron (Fe) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Iroext

Iron bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Iron (Fe) - oxalate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Irooxa

'Active' iron content extracted from amorphous iron compounds that are the products of the weathering of primary soil particles ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Iron (Fe) - pyrophosphate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Iropyr

Iron in soil that is organically bound in organo-metal complexes ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Iron (Fe) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Irotot

Total iron includes all iron forms in the soil, from soluble ferrous iron (Fe²⁺) to insoluble ferric iron (Fe³⁺). Iron is essential for plant chlorophyll synthesis and various enzymatic reactions. Deficiency, often seen in alkaline soils, results in chlorosis, while excessive iron can cause toxicity in acidic soils. Source: Soil Chemistry by Bohn et al. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Koeppen Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-koeppenClassProperty

Koeppen Class Property refers to the classification of climate zones based on temperature and precipitation patterns, as defined by the Köppen climate classification system. This classification directly influences soil temperature, moisture content, and vegetation types, which in turn affect soil formation and properties. Source: Köppen, W., 'Geiger's Climate Maps' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Land Use Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-landUseClassProperty

Land Use Class Property refers to the classification of land based on its primary use, such as agricultural, industrial, urban, or natural areas. This property helps assess the impact of land management practices on soil quality, including erosion risks, compaction, and fertility, and is critical for sustainable land-use planning. Source: FAO, 'Land Use and Land Cover Classification' Guidelines for Soil Description issued by the FAO: table 8
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Landform Complex Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-landformComplexProperty

Landform Complex Property describes a region with multiple interrelated landforms such as ridges, valleys, and hills. This property is essential for understanding how diverse landforms within a landscape influence soil distribution, water flow, and erosion patterns, ultimately affecting soil management strategies. Source: FAO, 'Soil Formation and Classification' Guidelines for Soil Description issued by the FAO: table 5
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Lithology Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-lithologyProperty

Lithology Property refers to the physical characteristics of the parent material, such as the mineral composition, texture, and structure of the underlying rocks or sediments. The lithology of an area influences soil formation by affecting drainage, nutrient content, and the ability of the soil to support vegetation. Source: AGI, 'Encyclopedia of Geology' Guidelines for Soil Description issued by the FAO: table 12
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Magnesium (Mg) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Magext

Magnesium bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Magnesium (Mg) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Magtot

Total magnesium in soil includes exchangeable, soluble, and mineral-bound forms. Magnesium is essential for chlorophyll synthesis, enzyme activation, and nutrient transport in plants. Its availability is influenced by soil pH and texture. Source: Havlin et al. (2014). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Magnesium (Mg++) - exchangeableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Magexc

Magnesium bound to exchange surfaces in the soil such as clay minerals and organic matter that can be released to the soil solution upon exchange ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Magnesium (Mg++) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Magsol

Soluble Magnesium cations accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Manganese (Mn) - dithionite extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Mandit

'Free' manganese content extracted from amorphous compounds (weathering products) as well as crystaline, primary aluminium compounds (parent material) in the soil. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Manganese (Mn) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Manext

Manganese bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Manganese (Mn) - KCl extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-ManKCl

KCl extractable manganese measures the readily available manganese fraction in soil. It provides a more accurate assessment of manganese availability to plants than total manganese. This method is commonly used for nutrient management. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Manganese (Mn) - oxalate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Manoxa

'Active' manganese content extracted from amorphous manganese compounds that are the products of the weathering of primary soil particles ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Manganese (Mn) - pyrophosphate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Manpyr

Manganese in soil that is organically bound in organo-metal complexes ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Manganese (Mn) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Mantot

Total manganese refers to all forms of manganese in the soil, which is critical for photosynthesis, enzyme activation, and nitrogen metabolism in plants. Manganese deficiencies or toxicities are influenced by soil pH, with deficiencies occurring in high-pH soils and toxicities in low-pH, waterlogged soils. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Medium sand (0.2 - 0.63 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-mSa_ISO

Content of mineral particles with sizes between 0.02-0.63 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Medium sand (0.2 - 0.63 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-mSa_ISSS

Content of mineral particles with sizes between 0.2-0.63 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Medium sand (0.25 - 0.5 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-mSa_USDA

Content of mineral particles with sizes between 0.25-0.5 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Medium silt (0.0063 - 0.02 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSiltPropertyCode-mSi_ISO

Content of mineral particles with sizes between 6.3-20 µm in soil
belongs to
Code list class for TextSiltProperty - codelist class c
concept c

Mineral Conc Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralConcAbundanceProperty

The Mineral Concentration Abundance Property evaluates the amount of specific minerals, such as quartz, feldspar, or mica, in the soil. This property provides insights into soil parent material and fertility. Source: FAO (2006). Guidelines for Soil Description. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Conc Colour Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralConcColourProperty

The Mineral Concentration Colour Property describes the color of concentrated mineral deposits in the soil, such as iron oxides (red) or manganese nodules (black). It helps identify soil processes like oxidation or leaching. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 78
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Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Conc Hardness Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralConcHardnessProperty

The Mineral Concentration Hardness Property assesses the physical hardness of mineral deposits in soil. Hardness influences soil strength and resistance to erosion or mechanical disruption. Source: Sparks, D.L. (2003). Environmental Soil Chemistry. Guidelines for Soil Description issued by the FAO: table 76
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Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Conc Kind Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralConcKindProperty

The Mineral Concentration Kind Property identifies the specific type of mineral concentrations found in soil, such as gypsum, calcite, or hematite. This classification aids in understanding soil genesis and chemistry. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 74
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Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Conc Nature Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralConcNatureProperty

The Mineral Concentration Nature Property examines the origin and composition of concentrated minerals in soil. It provides clues about weathering, leaching, and other pedogenic processes. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. Guidelines for Soil Description issued by the FAO: table 77
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Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Conc Shape Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralConcShapeProperty

The Mineral Concentration Shape Property describes the physical shape of mineral accumulations, such as rounded, angular, or irregular. These shapes help infer soil formation processes and transport history. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. Guidelines for Soil Description issued by the FAO: table 75,2
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Conc Sizee Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralConcSizeeProperty

The Mineral Concentration Size Property measures the dimensions of concentrated mineral deposits in soil, typically expressed in millimeters. Size categories range from small grains to large nodules or concretions. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 75,1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Conc Volume Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralConcVolumeProperty

The Mineral Concentration Volume Property quantifies the proportion of soil volume occupied by mineral concentrations. It is used to assess the impact of these materials on soil structure and permeability. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 73
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Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Content Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralContentProperty

The Mineral Content Property evaluates the overall abundance of mineral particles in soil, including sand, silt, and clay fractions. It provides essential information about soil texture, fertility, and parent material. Source: Hillel, D. (2004). Introduction to Environmental Soil Physics. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Mineral Fragments Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mineralFragmentsProperty

The Mineral Fragments Property refers to the presence and characteristics of coarse mineral particles (e.g., gravel, pebbles, stones) in the soil. These fragments influence soil drainage, root penetration, and overall physical structure. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 30
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

MMajor Land Form Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-MajorLandFormProperty

Major Land Form Property refers to the significant physical features of the land, such as mountains, valleys, and plateaus, that influence soil development and landscape processes. These landforms shape the flow of water, sediment transport, and nutrient cycling, directly affecting the types of soils that form in different regions. Source: FAO, 'World Soil Resources Report' Guidelines for Soil Description issued by the FAO: table 4
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Moist Consistency Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-moistConsistencyProperty

The Moist Consistency Property evaluates the soil's behavior under pressure when moist. Categories include friable, firm, or plastic. It provides insights into soil workability and its ability to support plant growth. Source: FAO (2006). Guidelines for Soil Description. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Moisture Content Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-moistureContentProperty

The Moisture Content Property measures the amount of water present in soil, expressed as a percentage of its dry weight. This property is critical for assessing soil water retention, irrigation needs, and plant-available water. Source: Hillel, D. (2004). Introduction to Environmental Soil Physics. Africa Soil Profiles Database Version 1.2. ISRIC Report 2014/01
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Code list class for DescriptiveProperty - codelist class c
concept c

Molybdenumni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Mol

Molybdenum is a micronutrient essential for plant enzymes involved in nitrogen fixation and nitrate reduction. Deficiency, often observed in acidic soils, can lead to stunted growth and poor nitrogen utilization. Its availability increases with higher pH, making liming a common solution for molybdenum deficiencies. Source: Havlin et al. (2014). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Mottles Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mottlesAbundanceProperty

The Mottles Abundance Property describes the frequency of mottling (spots of contrasting color) in soil horizons. Mottling indicates variations in soil aeration, drainage, or water saturation. Abundance is typically classified as few, common, or many. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. Guidelines for Soil Description issued by the FAO: table 32
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Mottles Boundary Classification Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mottlesBoundaryClassificationProperty

The Mottles Boundary Classification Property assesses the sharpness and distinctness of boundaries between mottled and non-mottled areas within the soil. It provides clues about soil processes such as oxidation-reduction reactions. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 35
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Mottles Colour Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mottlesColourProperty

The Mottles Colour Property evaluates the color of soil mottles, often indicative of oxidation states of iron or manganese. For example, reddish colors suggest oxidation, while gray colors indicate reduction and poor drainage. Source: Soil Survey Manual (USDA, 2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Mottles Contrast Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mottlesContrastProperty

The Mottles Contrast Property measures the visual distinction between mottles and the surrounding soil matrix. High contrast indicates stark differences, often linked to fluctuating water tables or drainage issues. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 34
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Mottles Presence Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mottlesPresenceProperty

The Mottles Presence Property refers to the existence of mottles in soil, often signaling periodic water saturation, drainage problems, or fluctuating redox conditions. This property is essential for wetland delineation and soil health assessment. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Mottles Size Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-mottlesSizeProperty

The Mottles Size Property describes the dimensions of soil mottles, typically classified as fine, medium, or coarse. The size reflects the intensity and scale of soil processes such as oxidation and reduction. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 33
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Nitrate (NO3-) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Nit3

Soluble Nitrate anions accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Nitrite (NO2-) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Nit2

Soluble Nitrite anions accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Nitrogen (N) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Nittot

Total nitrogen encompasses all nitrogen forms in soil, including organic nitrogen in humus and inorganic nitrogen such as ammonium (NH₄⁺) and nitrate (NO₃⁻). Nitrogen is essential for plant growth, being a vital component of amino acids, proteins, and chlorophyll. Total nitrogen is a key indicator of soil fertility and its capacity to sustain long-term crop productivity. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Organic matterni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Orgmat

Soil organic matter is composed of decomposed plant and animal residues, living soil organisms, and humus. It improves soil structure, water retention, nutrient supply, and microbial activity, making it critical for sustainable agriculture and soil health. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Oxalate Extractable Optical Density Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-oxalateExtractableOpticalDensityProperty

The Oxalate Extractable Optical Density Property measures the concentration of poorly crystalline forms of iron, aluminum, and organic matter in soil, often associated with volcanic soils. It is determined using ammonium oxalate extraction. Source: Sparks, D.L. (2003). Environmental Soil Chemistry. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Parent Lithology Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-parentLithologyProperty

Parent Lithology Property is the specific geological composition of the parent material (e.g., bedrock or sediment) from which the soil develops. The mineral content and texture of this material directly affect the physical and chemical properties of the soil, such as fertility, permeability, and soil depth. Source: USDA NRCS, 'Soil Genesis and Classification' Guidelines for Soil Description issued by the FAO: table 12
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Peat Decompostion Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-peatDecompostionProperty

The Peat Decomposition Property evaluates the degree of decomposition in organic soils or peat. Categories include fibric (least decomposed), hemic (moderately decomposed), and sapric (highly decomposed), which influence soil fertility and drainage. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 31
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Peat Drainage Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-peatDrainageProperty

The Peat Drainage Property assesses the water removal capacity in peat soils, essential for determining their suitability for agriculture, conservation, or other uses. Poorly drained peat often accumulates organic material due to low decomposition rates. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 59,1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Peat Volume Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-peatVolumeProperty

The Peat Volume Property quantifies the proportion of peat material in a given soil volume. It is critical for land use planning, carbon sequestration assessments, and wetland management. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. Guidelines for Soil Description issued by the FAO: table 59,2
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

pH - Hydrogen potentialni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-pH

Soil pH measures the concentration of hydrogen ions (H⁺) in the soil solution, indicating its acidity or alkalinity on a scale from 1 to 14. Neutral soils have a pH of 7, while values below 7 are acidic and above are alkaline. Soil pH significantly affects nutrient availability, microbial activity, and plant growth. For instance, nutrients like phosphorus are most available in a pH range of 6 to 7. Lime or sulfur applications can adjust soil pH to optimize conditions for crops. Source: USDA Natural Resources Conservation Service (NRCS). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Phosphate (PO4---) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Pho

Soluble Phosphate anions accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Phosphorus (P) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Phoext

Phosphorus bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Phosphorus (P) - oxalate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Phooxa

'Active' phosphorus content extracted from amorphous phosphorus compounds that are the products of the weathering of primary soil particles ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Phosphorus (P) - retentionni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Phoret

Phosphorus retention measures a soil's capacity to adsorb and hold phosphorus, influenced by soil texture, pH, and mineralogy. While high retention reduces leaching, it may also limit phosphorus availability to plants. Understanding phosphorus retention helps optimize fertilization and minimize environmental impacts. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Phosphorus (P) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Photot

Total phosphorus includes all forms of phosphorus in the soil, both organic and inorganic. While only a fraction is plant-available, total phosphorus serves as a long-term reserve for crop nutrition. Adequate phosphorus levels are crucial for energy transfer, photosynthesis, and root development in plants. Source: Soil Chemistry by Bohn et al. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Plasticity Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-plasticityProperty

The Plasticity Property measures the soil's ability to deform under stress without cracking or breaking, especially when wet. It is influenced by clay content and mineralogy and is important for engineering and agricultural applications. Source: Hillel, D. (2004). Introduction to Environmental Soil Physics. Guidelines for Soil Description issued by the FAO: table 56
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Code list class for DescriptiveProperty - codelist class c
concept c

Pores Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-poresAbundanceProperty

The Pores Abundance Property describes the quantity of soil pores, ranging from few to many. It influences water infiltration, root growth, and soil aeration. Pore abundance is crucial for assessing soil health and productivity. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 63
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Pores Size Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-poresSizeProperty

The Pores Size Property categorizes soil pores by their diameter, such as macro-pores, meso-pores, and micro-pores. This property determines water retention, air movement, and root penetration in soil. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. Guidelines for Soil Description issued by the FAO: table 62
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Porosityni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Por

Porosity refers to the percentage of soil volume occupied by pores or voids, which hold air and water. It directly impacts water infiltration, drainage, and root growth. Soils with high porosity are better suited for crop cultivation, as they provide good aeration and water availability. Source: Brady & Weil (2017). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

Porosity Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-porosityClassProperty

The Porosity Class Property classifies soil by the proportion of pore spaces, typically expressed as a percentage. Classes include high, medium, or low porosity, influencing water and air movement in the soil. Source: Soil Science Society of America (SSSA) Glossary. Guidelines for Soil Description issued by the FAO: table 60
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Code list class for DescriptiveProperty - codelist class c
concept c

Potassium (K) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Potext

Potassium bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Potassium (K) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Pottot

Total potassium includes all forms of potassium in soil, such as mineral-bound, exchangeable, and water-soluble potassium. It plays a vital role in plant growth by regulating water balance, enzyme activation, and photosynthesis. While only a fraction of total potassium is readily available to plants, it serves as a reserve to replenish exchangeable potassium over time. Adequate potassium levels improve crop yield, quality, and resistance to stress. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Potassium (K+) - exchangeableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Potexc

Potassium bound to exchange surfaces in the soil such as clay minerals and organic matter that can be released to the soil solution upon exchange ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Potassium (K+) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Potsol

Soluble Potassium cations accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

PParent Deposition Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-ParentDepositionProperty

Parent Deposition Property refers to the accumulation of materials, such as sediments or volcanic ash, that contribute to soil formation. These parent materials are deposited through natural processes such as erosion, weathering, or sediment transport, influencing soil texture, nutrient content, and water retention properties. Source: USDA NRCS, 'Soil Genesis and Classification' Guidelines for Soil Description issued by the FAO: table 16
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Code list class for DescriptiveProperty - codelist class c
concept c

PParticle Size Fractions Sum Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-ParticleSizeFractionsSumProperty

The Particle Size Fractions Sum refers to the total proportion of sand, silt, and clay particles in soil, expressed as a percentage. It ensures the sum of individual particle size fractions adds up to 100%, a check for accurate soil texture analysis. Particle size distribution impacts water retention, permeability, and soil structure. Source: Hillel, D. (2004). Introduction to Environmental Soil Physics. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

PPhysiography Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-PhysiographyProperty

Physiography Property describes the physical characteristics of a landscape, including its landforms, slopes, and elevation. These features influence soil properties such as drainage, erosion, and moisture retention, helping to determine soil suitability for various land uses. Source: FAO, 'Soil Geography and Mapping' Guidelines for Soil Description issued by the FAO: figure 2
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Profile Description Status Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-profileDescriptionStatusProperty

The Profile Description Status Property indicates the level of detail and accuracy in documenting the features of a soil profile, including its horizons, texture, structure, and other observable characteristics. This property ensures that the soil profile description meets standards for completeness, enabling reliable classification and analysis. It is a critical aspect of soil studies, providing the basis for land-use planning, environmental assessment, and agricultural decision-making. Source: Schoeneberger, P.J., Wysocki, D.A., Benham, E.C., & Soil Survey Staff. (2012). Field Book for Describing and Sampling Soils. USDA-NRCS. Guidelines for Soil Description issued by the FAO: table 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Rock Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-rockAbundanceProperty

The Rock Abundance property refers to the proportion or percentage of rock fragments in the soil profile. High rock abundance can affect soil tillage, water retention, root penetration, and overall soil fertility. It is often used to assess land suitability for agriculture and vegetation. Source: FAO (2006). Guidelines for Soil Description (4th ed.). Food and Agriculture Organization of the United Nations. Guidelines for Soil Description issued by the FAO: table 26
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Rock Outcrops Cover Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-rockOutcropsCoverProperty

Rock Outcrops Cover Property measures the extent to which rock outcrops (exposed bedrock or rock masses) cover the landscape. The presence of rock outcrops can influence soil depth and water retention, as well as contribute to erosion and landscape stability, particularly in areas with minimal soil cover. Source: USDA NRCS, 'Soil Survey Manual' Guidelines for Soil Description issued by the FAO: table 14,1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Rock Outcrops Distance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-rockOutcropsDistanceProperty

Rock Outcrops Distance Property quantifies the distance from a given point or area to the nearest rock outcrop. The proximity to rock outcrops can influence soil development, with areas closer to outcrops often having thinner soils and higher vulnerability to erosion. Source: FAO, 'Soil Formation and Classification' Guidelines for Soil Description issued by the FAO: table 14,2
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Rock Shape Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-rockShapeProperty

The Rock Shape property describes the physical form of rock fragments in the soil, which can range from angular to rounded. Angular rocks are generally a sign of recent weathering, while rounded rocks have been smoothed by long-term weathering processes. The shape of rocks influences soil texture, drainage, and tillage requirements. Source: FAO (2006). Guidelines for Soil Description (4th ed.). Food and Agriculture Organization of the United Nations. Guidelines for Soil Description issued by the FAO: table 28
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Rock Size Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-rockSizeProperty

The Rock Size property refers to the dimensions of the rock fragments present in the soil. Rocks are typically classified by their size, from small gravel to large boulders. Larger rocks can limit root growth, hinder water infiltration, and complicate soil management practices. Source: Soil Science Society of America. (2008). Soil Science Glossary. Soil Science Society of America. Guidelines for Soil Description issued by the FAO: table 27
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Code list class for DescriptiveProperty - codelist class c
concept c

Roots Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-rootsAbundanceProperty

The Roots Abundance Property describes the quantity of plant roots within a soil profile, typically categorized as few, common, or many. Root abundance reflects plant-soil interactions, soil fertility, and the physical structure that supports vegetation. Source: Soil Survey Manual (USDA, 2017). Guidelines for Soil Description issued by the FAO: table 80
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Code list class for DescriptiveProperty - codelist class c
concept c

RRoots Presence Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-RootsPresenceProperty

The Roots Presence Property identifies whether roots are visible in a soil profile or horizon. It indicates biological activity, soil health, and the suitability of the soil for plant growth. Roots are commonly observed during soil surveys and are classified by type and density. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Salt Content Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-saltContentProperty

The Salt Content Property measures the concentration of soluble salts in soil, critical for assessing salinity. Excess salts can hinder plant growth by affecting osmotic potential, leading to reduced water uptake by roots. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. Guidelines for Soil Description issued by the FAO: table 42
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Code list class for DescriptiveProperty - codelist class c
concept c

Salt Cover Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-saltCoverProperty

Salt cover refers to the accumulation of salts on the surface of the soil, often visible as a crystalline crust. This phenomenon occurs when capillary action causes soluble salts to move upwards through the soil, where they crystallize as water evaporates. Salt cover can interfere with seed germination, plant growth, and water infiltration, and is commonly found in arid and semi-arid regions with high evaporation rates. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils (14th ed.). Pearson Education. Guidelines for Soil Description issued by the FAO: 22,1
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Code list class for DescriptiveProperty - codelist class c
concept c

Salt Presence Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-saltPresenceProperty

The salt presence property of soil refers to the concentration of soluble salts, such as sodium, calcium, and magnesium, within the soil profile. High salt levels can lead to soil salinity, negatively affecting plant growth by altering water availability and soil structure. The presence of salts is typically measured using electrical conductivity (EC) or specific ion concentration tests. Soils with high salt presence are often found in arid regions where evaporation exceeds precipitation, leading to salt accumulation at or near the surface. Source: Rhoades, J.D., & Kandiah, A. (1992). Soil Salinity Management in Agriculture. Springer. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Salt Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-saltProperty

The Salt Property encompasses all forms of salts present in soil, including sodium chloride, calcium sulfate, and magnesium sulfate. It influences soil chemistry, structure, and plant tolerance to salinity. Source: FAO (2006). Guidelines for Soil Description. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Sand (0.02 - 2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-Sa_ISSS

Content of mineral particles with sizes between 0.020-2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Sand (0.050 - 2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-Sa_USDA

Content of mineral particles with sizes between 0.050-2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Sand (0.063 - 2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-Sa_ISO

Content of mineral particles with sizes between 0.063-2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Sand Water Dispersible 0.1ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/sandPropertyCode-SWD1

Sand water dispersible at 0.1 indicates the sand fraction of soil that can be dispersed into water under a pressure of 0.1. This measure helps assess the ease with which sand particles can separate from aggregates and become suspended in water, impacting soil erosion potential and water retention characteristics. Source: Soil Science Society of America.
belongs to
Code list class for SandProperty - codelist class c
concept c

Sand Water Dispersible 0.2ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/sandPropertyCode-SWD2

Sand water dispersible at 0.2 measures the sand fraction that can be dispersed at a 0.2 pressure. This parameter is crucial for evaluating the soil’s risk for erosion, particularly for sandy soils where the potential for particle dispersion can lead to structural degradation. Source: Soil Science Society of America.
belongs to
Code list class for SandProperty - codelist class c
concept c

Sand Water Dispersible 0.3ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/sandPropertyCode-SWD3

Sand water dispersible at 0.3 refers to the portion of sand particles in the soil that can be dispersed into water under a specific condition, where the dispersion occurs at a 0.3 pressure. This measurement indicates how easily the sand fraction of the soil can break apart and be suspended in water. Dispersible sand is important in evaluating soil structure and its susceptibility to erosion and runoff. Source: Soil Science Society of America.
belongs to
Code list class for SandProperty - codelist class c
concept c

Sand Water Dispersible 0.4ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/sandPropertyCode-SWD4

Sand water dispersible at 0.4 measures the fraction of sand particles that can be dispersed at a 0.4 pressure. This is useful for understanding how sand interacts with water under varying levels of stress, providing insight into soil stability, especially in sandy soils where dispersion might influence the soil structure and erosion potential. Source: Soil Science Society of America.
belongs to
Code list class for SandProperty - codelist class c
concept c

Sand Water Dispersible 0.5ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/sandPropertyCode-SWD5

Sand water dispersible at 0.5 refers to the amount of sand particles that can be dispersed into water when subjected to a pressure of 0.5. This measure is used to assess the potential for soil degradation, particularly in sandy soils where dispersion may lead to erosion or changes in soil structure. Source: Soil Science Society of America.
belongs to
Code list class for SandProperty - codelist class c
concept c

Sand Water Dispersible Totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/sandPropertyCode-SWDT

Sand water dispersible total refers to the sum of all sand particles that can be dispersed into water across a range of pressures, usually reflecting the total amount of dispersible sand in the soil. This value is important in understanding the overall erodibility of a soil, as high dispersibility is linked to increased susceptibility to erosion and degradation. Source: Soil Science Society of America.
belongs to
Code list class for SandProperty - codelist class c
concept c

Sandy Texture Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-sandyTextureProperty

The Sandy Texture Property refers to soil dominated by sand particles (0.05–2.0 mm in diameter). Sandy soils are well-drained, low in nutrients, and prone to drought due to poor water retention. Source: Soil Science Society of America (SSSA) Glossary. Guidelines for Soil Description issued by the FAO: figure 4,3
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Code list class for DescriptiveProperty - codelist class c
concept c

Sealing Consistence Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-sealingConsistenceProperty

The sealing consistence property of soil describes the resistance of the soil to the formation of a surface crust or compacted layer, which can impede water infiltration and root penetration. This phenomenon typically occurs in fine-textured soils, such as clays and silts, where the particles are tightly bound, leading to a hardened surface layer upon wetting and drying. Sealing consistence affects water movement and can lead to surface runoff and erosion in agricultural soils. Source: Soil Science Society of America (SSSA). (2008). Glossary of Soil Science Terms. Soil Science Society of America. Guidelines for Soil Description issued by the FAO: table 20,2
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Code list class for DescriptiveProperty - codelist class c
concept c

Sealing Thickness Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-sealingThicknessProperty

The sealing thickness property refers to the depth of the compacted or sealed layer within the soil, which is typically a result of intense rainfall, drying, or tillage practices. This layer, which forms in fine-textured soils, can significantly reduce water infiltration and root growth, leading to reduced soil aeration and potential surface runoff. The sealing thickness property is crucial for understanding soil erosion risks and water management in agricultural systems. Source: Pagliai, M., & Vignozzi, N. (2002). Soil Structure and Soil Quality: A Review of the State of the Art. Agriculture, Ecosystems & Environment, 88(3), 77-86. Guidelines for Soil Description issued by the FAO: 20,1
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Code list class for DescriptiveProperty - codelist class c
concept c

Selenium (Se) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Selext

Selenium bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Selenium (Se) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Seltot

Total selenium includes all selenium forms in soil, ranging from organic selenium in humus to inorganic selenium compounds. While trace amounts are essential for animal and human nutrition, excessive selenium can be toxic. Understanding selenium levels is critical for food safety and environmental management. Source: Sparks, D.L. (2003). Environmental Soil Chemistry. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Shrubs Abundance Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-shrubsAbundanceProperty

Shrubs Abundance Property refers to the extent or abundance of shrub vegetation in a given area. Shrubs influence soil structure by reducing erosion, improving soil organic matter through leaf litter, and enhancing nutrient cycling. They are also indicators of ecosystem health in many terrestrial environments. Source: FAO, 'Vegetation and Land Use in Arid Zones' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Silicon (Si) - oxalate extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Siloxa

'Active' silicon content extracted from amorphous silicon compounds that are the products of the weathering of primary soil particles ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Silt (0.002 - 0.02 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSiltPropertyCode-Si_ISSS

Content of mineral particles with sizes between 2-20 µm in soil
belongs to
Code list class for TextSiltProperty - codelist class c
concept c

Silt (0.002 - 0.05 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSiltPropertyCode-Si_USDA

Content of mineral particles with sizes between 2-50 µm in soil
belongs to
Code list class for TextSiltProperty - codelist class c
concept c

Silt (0.002 - 0.063 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSiltPropertyCode-Si_ISO

Content of mineral particles with sizes between 2-63 µm in soil
belongs to
Code list class for TextSiltProperty - codelist class c
concept c

Silt Water Dispersible Fraction 0.1ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/siltPropertyCode-SWDF1

Silt water dispersible fraction at 0.1 refers to the portion of silt particles that can be dispersed into water when subjected to a 0.1 pressure. This measure helps determine the soil's erodibility, as silt tends to be more easily dispersed than sand, contributing to the formation of suspended particles in water, which can affect water quality and soil health. Source: Soil Science Society of America.
belongs to
Code list class for SiltProperty - codelist class c
concept c

Silt Water Dispersible Fraction 0.2ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/siltPropertyCode-SWDF2

Silt water dispersible fraction at 0.2 quantifies the amount of silt particles in the soil that can be dispersed at a 0.2 pressure. Dispersible silt can have a significant impact on soil stability and is particularly relevant for understanding how silt behaves under wet conditions, affecting erosion rates and water retention. Source: Soil Science Society of America.
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Code list class for SiltProperty - codelist class c
concept c

Silt Water Dispersible Fraction Totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/siltPropertyCode-SWDFT

Silt water dispersible fraction total refers to the total amount of silt particles that can be dispersed into water across different pressures. This total measure indicates the overall dispersibility of silt in a soil, which is important for assessing the soil’s vulnerability to erosion and degradation, especially in soils with a high silt content. Source: Soil Science Society of America.
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Code list class for SiltProperty - codelist class c
concept c

Slope Form Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-slopeFormProperty

Slope Form Property describes the shape or curvature of a slope, including its concave, convex, or straight profile. Slope form affects water runoff, erosion rates, and soil accumulation, influencing both the fertility and stability of the soil in hilly or mountainous regions. Source: FAO, 'Soil and Water Conservation' Guidelines for Soil Description issued by the FAO: table 6
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Code list class for DescriptiveProperty - codelist class c
concept c

Slope Gradient Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-slopeGradientClassProperty

Slope Gradient Class Property refers to the classification of slope steepness, such as flat, moderate, or steep, based on its angle. The gradient of a slope influences soil erosion rates, water drainage, and the suitability of land for agriculture, with steeper slopes typically being more prone to erosion. Source: USDA NRCS, 'Soil Erosion and Conservation' Guidelines for Soil Description issued by the FAO: table 7
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Code list class for DescriptiveProperty - codelist class c
concept c

Slope Gradient Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-slopeGradientProperty

Slope Gradient Property refers to the numerical measurement of the steepness of a slope, usually expressed as a percentage or angle. This property is crucial in determining soil erosion potential, water runoff, and suitability for land use, as steeper slopes are more prone to erosion and less suitable for cultivation without proper soil conservation measures. Source: USDA NRCS, 'Soil Erosion and Conservation' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Slope Orientation Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-slopeOrientationClassProperty

Slope Orientation Class Property classifies the direction in which a slope faces (north, south, east, west) and can significantly affect local climate conditions, such as sunlight exposure, moisture, and temperature. For instance, south-facing slopes in the Northern Hemisphere receive more sunlight, influencing soil temperature, vegetation types, and soil moisture availability. Source: FAO, 'Soil and Water Conservation' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Slope Orientation Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-slopeOrientationProperty

Slope Orientation Property refers to the precise directional orientation of a slope, measured in degrees from a cardinal direction (e.g., 0° for north, 180° for south). The slope orientation impacts factors such as solar radiation, evaporation rates, and vegetation cover, all of which affect soil temperature, moisture retention, and erosion potential. Source: USDA NRCS, 'Soil Erosion and Landscape Analysis' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Slope Pathways Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-slopePathwaysProperty

Slope Pathways Property identifies the natural flow paths of water, sediment, or other materials across a slope. These pathways, often defined by the topography, influence how water moves, erodes soil, and accumulates nutrients or contaminants. Understanding these pathways is critical for effective erosion control and water management in sloped areas. Source: FAO, 'Soil Erosion and Conservation' Guidelines for Soil Description issued by the FAO: figure 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Sodium (Na) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Sodext

Sodium bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Sodium (Na) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Sodtot

Total sodium includes all sodium present in soil, both soluble and bound. Excess sodium can lead to sodicity, which disrupts soil structure, reduces permeability, and impairs plant growth. Monitoring sodium levels is crucial for managing soil salinity in arid and irrigated regions. Source: Bohn, H.L., et al. (2001). Soil Chemistry. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Sodium (Na+) - exchangeableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Sodexp

Sodium bound to exchange surfaces in the soil such as clay minerals and organic matter that can be released to the soil solution upon exchange ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Sodium (Na+) - exchangeable %ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Sodexc

Exchangeable sodium percentage (ESP) measures the proportion of sodium ions in the cation exchange complex. High ESP levels (>15%) indicate sodic soils, which are prone to poor structure, reduced permeability, and nutrient imbalances. Management strategies include gypsum application and leaching. Source: USDA NRCS. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Sodium (Na+) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Sodsol

Soluble Sodium cations accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Soil Depth Bedrock Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-soilDepthBedrockProperty

The Soil Depth Bedrock property refers to the distance from the soil surface to the underlying bedrock layer. This measurement is important for understanding the soil's capacity to support plant growth, as soils with shallow bedrock tend to have limited rooting depth, affecting water retention and nutrient availability. Source: FAO (2006). Guidelines for Soil Description (4th ed.). Food and Agriculture Organization of the United Nations. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Soil Depth Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-soilDepthProperty

The Soil Depth property measures the vertical distance from the soil surface to an impenetrable layer, such as bedrock or a hardpan. Soil depth is a crucial factor influencing root development, water storage, and plant growth. Shallow soils may limit root growth, while deep soils can support more extensive root systems. Source: Brady, N. C., & Weil, R. R. (2008). The Nature and Properties of Soils (14th ed.). Pearson Prentice Hall. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Soil Depth Rootable Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-soilDepthRootableClassProperty

The Soil Depth Rootable Class property classifies soils based on the depth of the rootable zone, which excludes impenetrable layers such as bedrock or compacted horizons. Soils are typically classified as shallow, moderately deep, or deep, depending on the depth of the root zone, which directly affects plant growth. Source: FAO (2006). Guidelines for Soil Description (4th ed.). Food and Agriculture Organization of the United Nations. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Soil Depth Rootable Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-soilDepthRootableProperty

The Soil Depth Rootable property refers to the actual vertical depth of soil that can support plant roots, excluding any non-rootable layers such as bedrock or a water-impervious horizon. This depth is crucial for determining the suitability of land for agriculture and vegetation. Source: Soil Science Society of America. (2008). Soil Science Glossary. Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Soil Depth Sampled Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-soilDepthSampledProperty

The Soil Depth Sampled property indicates the specific depth of the soil profile that has been sampled for analysis. This property is important for understanding the representativeness of the sample, as different soil horizons may vary significantly in properties such as texture, fertility, and moisture content. Source: Soil Science Society of America. (2008). Soil Science Glossary. Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Soil Type Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-soilTypeProperty

The Soil Type Property categorizes soils based on their physical, chemical, and mineralogical characteristics, as well as their formation processes. It identifies specific soil types, such as sandy, loamy, or clayey soils, or more detailed classifications like Mollisols, Alfisols, or Vertisols, depending on the classification system used (e.g., USDA Soil Taxonomy or FAO WRB). Understanding soil type is essential for predicting soil behavior, determining suitable land uses, and managing resources effectively. Source: USDA-NRCS (1999). Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys; FAO (2015). World Reference Base for Soil Resources. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Soluble Anions Total Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-solubleAnionsTotalProperty

The Soluble Anions Total Property measures the concentration of anions (e.g., chloride, sulfate, nitrate) in soil solution. High levels may indicate salinity, nutrient availability, or contamination. Source: Sparks, D.L. (2003). Environmental Soil Chemistry. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Soluble Cations Total Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-solubleCationsTotalProperty

The Soluble Cations Total Property evaluates the sum of cations (e.g., sodium, potassium, calcium, magnesium) in soil solution. It is an indicator of soil salinity, fertility, and chemical balance. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Soluble saltsni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Solsal

Soluble salts refer to dissolved salts in the soil solution, primarily composed of sodium, calcium, magnesium, chloride, and sulfate ions. Excessive soluble salts cause salinity, which can impair plant water uptake and lead to osmotic stress. EC testing helps monitor salinity levels for effective management. Source: Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
Code list class for PhysioChemicalProperty - codelist class c
concept c

SSalt Thickness Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-SaltThicknessProperty

Salt thickness refers to the depth of the soil profile at which soluble salts are present in significant concentrations. This property is particularly important in regions subject to evaporation and capillary rise, where salts accumulate near the surface or at specific depths. Salt thickness can impact soil fertility and water retention, as the concentrated salts can inhibit root growth and water uptake. This property is commonly determined through soil sampling and electrical conductivity measurements at various depths. Source: United States Salinity Laboratory Staff. (1954). Diagnosis and Improvement of Saline and Alkali Soils. U.S. Department of Agriculture Handbook No. 60. Guidelines for Soil Description issued by the FAO: table 22,2
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Code list class for DescriptiveProperty - codelist class c
concept c

Stickiness Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-stickinessProperty

The Stickiness Property measures the soil’s tendency to adhere to Layer-Horizons or objects when wet. It is influenced by clay content and organic matter and affects soil workability and machinery use. Source: Hillel, D. (2004). Introduction to Environmental Soil Physics. Guidelines for Soil Description issued by the FAO: table 55
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Code list class for DescriptiveProperty - codelist class c
concept c

Structure Grade Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-structureGradeProperty

The Structure Grade Property assesses the development and stability of soil aggregates, classified as weak, moderate, or strong. It reflects soil tilth, aeration, and resistance to erosion. Source: Soil Survey Staff (2014). Keys to Soil Taxonomy. Guidelines for Soil Description issued by the FAO: table 47
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Code list class for DescriptiveProperty - codelist class c
concept c

Structure Size Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-structureSizeProperty

The Structure Size Property describes the dimensions of soil aggregates or structural units, such as granular, blocky, or platy. Structure size affects root penetration, water infiltration, and soil stability. Source: FAO (2006). Guidelines for Soil Description. Guidelines for Soil Description issued by the FAO: table 50
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Code list class for DescriptiveProperty - codelist class c
concept c

Sulfate (SO4--) - solubleni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Sul

Soluble Sulfate anions accumulated in the soil. A contributor to soil salinisation. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Sulfur (S) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Sulext

Sulfur bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Sulfur (S) - totalni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Sultot

Total sulfur in soil includes both organic and inorganic forms, such as sulfates and sulfur in organic matter. Sulfur is essential for protein synthesis and enzyme functions in plants. Deficiency leads to stunted growth and yellowing of leaves. Total sulfur provides insight into the soil's potential to release plant-available sulfur over time, critical for sustaining crop health. Source: Havlin, J.L., et al. (2014). Soil Fertility and Fertilizers. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
belongs to
chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Surface Age Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-surfaceAgeProperty

Surface Age Property refers to the estimated age of a surface layer of soil or landform, which is important for understanding the degree of soil weathering, development, and fertility. Older surfaces may have more developed soils, while younger surfaces may be less fertile and more prone to erosion. Source: FAO, 'Soil Formation and Evolution' Guidelines for Soil Description issued by the FAO: table 13
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Code list class for DescriptiveProperty - codelist class c
concept c

Texture Lab Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-textureLabClassProperty

The Texture Lab Class Property defines soil texture using laboratory-determined particle size distributions. This property provides a precise classification of soil as sand, silt, or clay using standard methods. Source: Brady, N.C., & Weil, R.R. (2008). The Nature and Properties of Soils. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Texture Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-textureProperty

The Texture property refers to the relative proportions of sand, silt, and clay in a soil. It is a key indicator of the soil’s ability to retain moisture, drain water, and support root growth. Soils can be classified into textures such as sandy, loamy, or clayey, each with distinct characteristics affecting soil management. Source: Soil Science Society of America. (2008). Soil Science Glossary. Soil Science Society of America. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
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Code list class for DescriptiveProperty - codelist class c
concept c

Tree Density Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-treeDensityProperty

Tree Density Property refers to the number of trees per unit area, usually expressed as trees per hectare. High tree density is often associated with forested ecosystems that contribute to soil fertility through organic matter inputs, root structures that stabilize the soil, and enhanced moisture retention. Source: FAO, 'Forest Resources Assessment' ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 1
belongs to
Code list class for DescriptiveProperty - codelist class c
concept c

Very coarse sand (1 - 2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-vcSa_USDA

Content of mineral particles with sizes between 1-2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Very coarse sand (1.25 - 2 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-vcSa_ISSS

Content of mineral particles with sizes between 1.25-2 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Very fine sand (0.05 - 0.1 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-vfSa_USDA

Content of mineral particles with sizes between 0.05-0.1 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Very fine sand (0.063 - 0.125 mm)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/textSandPropertyCode-vfSa_ISSS

Content of mineral particles with sizes between 0.063-0.125 mm in soil
belongs to
Code list class for TextSandProperty - codelist class c
concept c

Voids Diameter Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-voidsDiameterProperty

The Voids Diameter Property refers to the size of void spaces in soil, which can range from macro-voids (larger pores) to micro-voids (tiny pores). Voids diameter impacts soil aeration, water retention, and drainage. Source: Soil Science Society of America (SSSA) Glossary. Guidelines for Soil Description issued by the FAO: table 62
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Code list class for DescriptiveProperty - codelist class c
concept c

VVegetation Class Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-VegetationClassProperty

Vegetation Class Property refers to the categorization of vegetation types based on species composition and structure, such as forests, grasslands, and wetlands. The class of vegetation affects soil fertility, microbial activity, and water retention, which in turn influences agricultural potential and ecosystem services. Source: FAO, 'Vegetation and Land Use in Arid Zones' Guidelines for Soil Description issued by the FAO: table 11
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Code list class for DescriptiveProperty - codelist class c
concept c

VVoids Classification Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-VoidsClassificationProperty

The Voids Classification Property categorizes voids or pores in the soil based on size, shape, and arrangement. These voids are critical for water movement, air circulation, and root penetration. They are classified into macropores (large), mesopores (medium), and micropores (small). Source: Hillel, D. (2004). Introduction to Environmental Soil Physics. Guidelines for Soil Description issued by the FAO: table 61
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Code list class for DescriptiveProperty - codelist class c
concept c

Water Retention Gravimetricni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRG

Gravimetric water retention refers to the amount of water held by the soil measured by weight, often expressed in terms of mass per unit mass of soil. It is a fundamental method for assessing soil moisture content and can be determined at various suction pressures like 33 kPa or 1500 kPa. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Gravimetric 10 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRG10

Gravimetric water retention at 10 kPa measures the water held in the soil at 10 kPa pressure, commonly representing the moisture content that is available to plants under normal growing conditions. This measurement is crucial for assessing the soil’s capacity to retain and supply water to plants. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Gravimetric 100 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRG100

Gravimetric water retention at 100 kPa measures the water retained by the soil at this specific pressure, using the gravimetric method. It indicates the moisture available to plants between field capacity and the wilting point, providing a useful measurement for soil water management. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Gravimetric 1500 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRG1500

Gravimetric water retention at 1500 kPa refers to the mass of water retained by the soil at this pressure, as measured by the gravimetric method (weighing the soil before and after drying). This pressure represents the point at which water is tightly held by the soil and is no longer easily accessible to plants, closely corresponding to the permanent wilting point. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Gravimetric 200 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRG200

Gravimetric water retention at 200 kPa is the mass of water retained by the soil at this specific suction pressure. It provides insight into the soil’s ability to retain water that is not easily lost by evaporation, offering a more accurate measurement of water held at pressures significant for plant growth. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Gravimetric 33 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRG33

Gravimetric water retention at 33 kPa measures the amount of water retained by the soil at this specific pressure, determined by the mass of water held in the soil when subjected to the 33 kPa suction. It reflects the soil’s capacity to hold water available to plants under conditions of moderate water stress. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Gravimetric 500 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRG500

Gravimetric water retention at 500 kPa indicates the amount of water retained in the soil at this pressure. This is closer to the permanent wilting point, with the gravimetric method determining the mass of water held in the soil at this specific tension. Source: Soil Science Society of America.
belongs to
Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Gravimetric 6 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRG6

Gravimetric water retention at 6 kPa measures the soil's water content at a low suction pressure, typically indicative of the moisture available to plants under less favorable conditions. The gravimetric method involves weighing the soil before and after drying to assess the retained water. Source: Soil Science Society of America.
belongs to
Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Volumetricni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRV

Volumetric water retention refers to the amount of water retained in the soil, expressed as a volume per unit volume of soil. This measure is crucial for understanding the soil's ability to retain and supply water to plants, and it is often assessed at different matric potentials, such as 33 kPa or 1500 kPa, depending on the context. Source: Soil Science Society of America.
belongs to
Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Volumetric 10 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRV10

Water retention at 10 kPa measures the volumetric water content of the soil at this pressure, which is typically considered within the zone of plant-available water. At 10 kPa, the soil retains water that can be easily accessed by plants for growth and physiological processes. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Volumetric 100 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRV100

Water retention at 100 kPa measures the volumetric water content in the soil at this pressure. This value is often used to assess the availability of water for plant uptake under normal conditions, as it lies between field capacity and the wilting point for many soils. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Volumetric 1500 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRV1500

Water retention at 1500 kPa (or field capacity) measures the amount of water that a soil can hold at this specific suction pressure. This is a critical indicator of the soil's ability to retain water against gravity after it has drained. At 1500 kPa, the soil's moisture content represents the point at which most of the water available for plant use has been drained, and it is typically considered the permanent wilting point. Source: Soil Science Society of America.
belongs to
Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Volumetric 200 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRV200

Water retention at 200 kPa refers to the volumetric water content retained by the soil at a 200 kPa pressure. This measurement typically lies between the field capacity and wilting point, giving an indication of the soil’s ability to hold water that plants can access under moderate stress conditions. Source: Soil Science Society of America.
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Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Volumetric 33 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRV33

Water retention at 33 kPa represents the volumetric water content in soil at a pressure of 33 kPa, which is often associated with the field capacity of the soil. At this pressure, water is held in the soil that is available for most plant species, providing a balance between water retention and drainage. Source: Soil Science Society of America.
belongs to
Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Volumetric 500 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRV500

Water retention at 500 kPa measures the volumetric water content of the soil at a pressure of 500 kPa, which lies between field capacity and permanent wilting point. This pressure is commonly used in assessing soil water retention characteristics for plants that are not able to access water at extremely low pressures. The volumetric water content at 500 kPa indicates the soil's capacity to hold water that is readily available for plant uptake. Source: Soil Science Society of America.
belongs to
Code list class for WaterRetentionProperty - codelist class c
concept c

Water Retention Volumetric 6 kPani back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/waterRetentionPropertyCode-WRV6

Volumetric water retention at 6 kPa measures the soil’s ability to hold water at a low pressure, typically indicating the moisture content available to plants under conditions of mild water stress. It is important for understanding the soil's water-holding capacity and potential for plant growth. Source: Soil Science Society of America.
belongs to
Code list class for WaterRetentionProperty - codelist class c
concept c

Weather Conditions Current Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-weatherConditionsCurrentProperty

Weather Conditions Current Property describes the current atmospheric conditions in a specific location, including factors like temperature, humidity, wind speed, and precipitation. These conditions directly affect soil moisture, temperature, and erosion rates, influencing soil fertility and the ability to support plant growth. Source: USGS, 'Meteorological and Soil Interactions' Guidelines for Soil Description issued by the FAO: table 2
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Code list class for DescriptiveProperty - codelist class c
concept c

Weather Conditions Past Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-weatherConditionsPastProperty

Weather Conditions Past Property refers to historical weather data, including past patterns of temperature, precipitation, and extreme weather events. Understanding past weather conditions helps in predicting soil behavior, erosion patterns, and agricultural productivity, as well as preparing for future changes in soil moisture and temperature. Source: USDA NRCS, 'Climate and Soil Interactions' Guidelines for Soil Description issued by the FAO: table 2
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Code list class for DescriptiveProperty - codelist class c
concept c

Weathering Fragments Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-weatheringFragmentsProperty

The Weathering Fragments property refers to soil particles or rock fragments that have been broken down through physical, chemical, or biological weathering. These fragments play a role in soil texture, structure, and nutrient availability. The degree of weathering can indicate the age and stability of the soil’s mineral content. Source: Brady, N. C., & Weil, R. R. (2008). The Nature and Properties of Soils (14th ed.). Pearson Prentice Hall. Guidelines for Soil Description issued by the FAO: table 29
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Code list class for DescriptiveProperty - codelist class c
concept c

Wet Plasticity Propertyni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/descriptivePropertyCode-wetPlasticityProperty

The Wet Plasticity Property measures the soil’s ability to deform under pressure when saturated. Wet plasticity is influenced by clay mineralogy and is important for understanding soil behavior under wet conditions. Source: Hillel, D. (2004). Introduction to Environmental Soil Physics. ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3
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Code list class for DescriptiveProperty - codelist class c
concept c

Zinc (Zn)ni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Zin

Zinc is a micronutrient essential for plant enzyme systems, protein synthesis, and growth regulation. Deficiency is common in calcareous soils and results in stunted growth and chlorosis. Zinc fertilizers or soil pH adjustments can address deficiencies. Source: Havlin et al. (2014). ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
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chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Zinc (Zn) - extractableni back to ToC or Named Individual ToC

IRI: http://w3id.org/glosis/model/codelists/properties/physioChemicalPropertyCode-Zinext

Zinc bound to the soil matrix but that can be released into the soil solution (i.e. become bio-available) ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3,ISRIC Report 2014/01: Africa Soil Profiles Database Version 1.2. Annex 3a
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chemical compound c
chemical substance c
Code list class for PhysioChemicalProperty - codelist class c
concept c

Legend back to ToC

c: Classes
ni: Named Individuals

Acknowledgments back to ToC

The authors would like to thank Silvio Peroni for developing LODE, a Live OWL Documentation Environment, which is used for representing the Cross Referencing Section of this document and Daniel Garijo for developing Widoco, the program used to create the template used in this documentation.