1 Scope
This standard is a guide for describing the soil and its environmental context at a given site. Sites can be natural, near-natural, urban or industrial. It is important to realize that a number of soil samples can be taken at a site to support the soil description. The information provided by the descriptions in this standard provides the context for the presentation of results from analyses undertaken on soil samples.
Note 1: It might not be possible or necessary to record data under all the headings listed in these descriptions.
Note 2: Overall guidance for presentation of information from soil surveys is given in ISO 15903.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 3166-1:2006 Codes for the Representation of Names of Countries and Their Subdivisions - Part 1: Country Codes
ISO 3166-2:2007 Codes for the Representation of Names of Countries and Their Subdivisions - Part 2: Country Subdivision Code
ISO 14688-2:2004 Geotechnical Investigation and Testing - Identification and Classification of Soil - Part 2: Principles for A Classification
3 General References
3.1 Site/Profile Numbers
- Profile number;
- Survey number or code.
3.2 Location
- Country
Country codes according to ISO 3166-1 and ISO 3166-2 shall be used. For historical research, designations according to ISO 3166-3 should be considered, when necessary.
- Administrative division
To be adapted according to the country: (provinces, states, regions, departments, towns, etc.), both uncoded and coded.
3.3 Geographical Coordinates
- Type of geographical reference system (degrees, Lambert, national reference grid);
- Position within the geographical reference system (longitude in deg/min/s, latitude in deg/min/s);
- Altitude (in metres).
3.4 Date of Observation
- Year;
- Month;
- Day;
- Time.
3.5 Author and Organization
- Author's name;
- Accreditation;
- Name of organization;
- Department;
- Address;
- Telephone;
- Fax number;
- E-mail address.
Foreword III
1 Scope
2 Normative References
3 General References
3.1 Site/Profile Numbers
3.2 Location
3.3 Geographical Coordinates
3.4 Date of Observation
3.5 Author and Organization
4 Profile Environment
4.1 Previous Precipitation
4.2 Land Use at Plot Level (Checked by Detailed Field Survey)
4.3 Type of Cultivation or Vegetation or Human Utilization (at the Plot Level)
4.4 Geomorphology of the Site
4.5 Slope Length (in Metres)
4.6 Slope Value
4.7 Orientation (Aspect) of the Slope
4.8 Nature of the Parent Material
4.9 Presence and Depth of Water Table
5 Surface Appearance
5.1 Percentage of Land Surface Occupied by Rock Outcrops or Surface Exposures of “Non-natural” Material (e.g. on An Industrial Site)
5.2 Evidence of Erosion
6 General Designation - Soil Type
6.1 General
6.2 Type of Soil Classification Used
6.3 Soil Type with Reference to the Soil Classification Used
6.4 Type of Horizon or Layer Designation Used
6.5 Sequence of Horizons or Layers
7 Horizon or Layer Description
7.1 General
7.2 Horizon or Layer Number
7.3 Depth
7.4 Estimation of Moisture Status
7.5 Colour of the Horizon or Layer Matrix
7.6 Mottles
7.7 Estimated Organic Matter Content
7.8 Texture
7.9 Coarse Elements
7.10 Carbonates and Effervescence
7.11 Main Categories of Structure
7.12 Compactness
7.13 Total estimated porosity
7.14 Roots
7.15 Density of Worm Channels (Usually An Average over A Number of Square Decimetres)
7.16 Nature of Lower Horizon Boundary
Appendix A (Informative) Charts for Estimating Proportions of Mottles, Coarse Elements, etc.
Appendix B (Informative) Reference Soil Groups of the World Reference Base for Soil Resources (FAO, ISRIC and ISSS, 2006)
Appendix C (Informative) Soil Horizon Designation - Example of the FAO System (2006)
Appendix D (Informative) Examples of Texture Diagrams
Appendix E (Informative) Determination of Soil Texture in the Field
Appendix F (Informative) Some Types of Soil Structure
Bibliography
Standard
GB/T 32726-2016 Soil quality; field soil description (English Version)
1 Scope
This standard is a guide for describing the soil and its environmental context at a given site. Sites can be natural, near-natural, urban or industrial. It is important to realize that a number of soil samples can be taken at a site to support the soil description. The information provided by the descriptions in this standard provides the context for the presentation of results from analyses undertaken on soil samples.
Note 1: It might not be possible or necessary to record data under all the headings listed in these descriptions.
Note 2: Overall guidance for presentation of information from soil surveys is given in ISO 15903.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 3166-1:2006 Codes for the Representation of Names of Countries and Their Subdivisions - Part 1: Country Codes
ISO 3166-2:2007 Codes for the Representation of Names of Countries and Their Subdivisions - Part 2: Country Subdivision Code
ISO 14688-2:2004 Geotechnical Investigation and Testing - Identification and Classification of Soil - Part 2: Principles for A Classification
3 General References
3.1 Site/Profile Numbers
- Profile number;
- Survey number or code.
3.2 Location
- Country
Country codes according to ISO 3166-1 and ISO 3166-2 shall be used. For historical research, designations according to ISO 3166-3 should be considered, when necessary.
- Administrative division
To be adapted according to the country: (provinces, states, regions, departments, towns, etc.), both uncoded and coded.
3.3 Geographical Coordinates
- Type of geographical reference system (degrees, Lambert, national reference grid);
- Position within the geographical reference system (longitude in deg/min/s, latitude in deg/min/s);
- Altitude (in metres).
3.4 Date of Observation
- Year;
- Month;
- Day;
- Time.
3.5 Author and Organization
- Author's name;
- Accreditation;
- Name of organization;
- Department;
- Address;
- Telephone;
- Fax number;
- E-mail address.
Contents of GB/T 32726-2016
Foreword III
1 Scope
2 Normative References
3 General References
3.1 Site/Profile Numbers
3.2 Location
3.3 Geographical Coordinates
3.4 Date of Observation
3.5 Author and Organization
4 Profile Environment
4.1 Previous Precipitation
4.2 Land Use at Plot Level (Checked by Detailed Field Survey)
4.3 Type of Cultivation or Vegetation or Human Utilization (at the Plot Level)
4.4 Geomorphology of the Site
4.5 Slope Length (in Metres)
4.6 Slope Value
4.7 Orientation (Aspect) of the Slope
4.8 Nature of the Parent Material
4.9 Presence and Depth of Water Table
5 Surface Appearance
5.1 Percentage of Land Surface Occupied by Rock Outcrops or Surface Exposures of “Non-natural” Material (e.g. on An Industrial Site)
5.2 Evidence of Erosion
6 General Designation - Soil Type
6.1 General
6.2 Type of Soil Classification Used
6.3 Soil Type with Reference to the Soil Classification Used
6.4 Type of Horizon or Layer Designation Used
6.5 Sequence of Horizons or Layers
7 Horizon or Layer Description
7.1 General
7.2 Horizon or Layer Number
7.3 Depth
7.4 Estimation of Moisture Status
7.5 Colour of the Horizon or Layer Matrix
7.6 Mottles
7.7 Estimated Organic Matter Content
7.8 Texture
7.9 Coarse Elements
7.10 Carbonates and Effervescence
7.11 Main Categories of Structure
7.12 Compactness
7.13 Total estimated porosity
7.14 Roots
7.15 Density of Worm Channels (Usually An Average over A Number of Square Decimetres)
7.16 Nature of Lower Horizon Boundary
Appendix A (Informative) Charts for Estimating Proportions of Mottles, Coarse Elements, etc.
Appendix B (Informative) Reference Soil Groups of the World Reference Base for Soil Resources (FAO, ISRIC and ISSS, 2006)
Appendix C (Informative) Soil Horizon Designation - Example of the FAO System (2006)
Appendix D (Informative) Examples of Texture Diagrams
Appendix E (Informative) Determination of Soil Texture in the Field
Appendix F (Informative) Some Types of Soil Structure
Bibliography