USDA Soil Taxonomy developed by United States Department of Agriculture and the National Cooperative Soil Survey provides an elaborate classification of soil types according to several parameters (most commonly their properties) and in several levels: Order, Suborder, Great Group, Subgroup, Family, and Series.
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Example of classification of a soil type
Order: Entisols
- Suborder: Fluvents
- Great Group: Torrifluvents
- Subgroup: Typic Torrifluvents
- Family: Fine-loamy, mixed, superactive, calcareous, Typic Torrifluvents
- Series: Jocity, Youngston.
- Family: Fine-loamy, mixed, superactive, calcareous, Typic Torrifluvents
- Subgroup: Typic Torrifluvents
- Great Group: Torrifluvents
Another Example
Order: Alfisols
- Suborder: Xeralfs
- Great Group: Durixeralfs
- Subgroup: Abruptic Durixeralfs
- Family: Fine, Mixed, Active, thermic Abruptic Durixeralfs
- Series: San Joaquin (soil)
- Family: Fine, Mixed, Active, thermic Abruptic Durixeralfs
- Subgroup: Abruptic Durixeralfs
- Great Group: Durixeralfs
Link to Official Series Description: ftp://ftp-fc.sc.egov.usda.gov/NSSC/StateSoil_Profiles/ca_soil.pdf
Orders
- Alfisols
- Andisols
- Aridisols
- Entisols
- Gelisols
- Histosols
- Inceptisols
- Mollisols
- Oxisols
- Spodosols
- Ultisols
- Vertisols
See also
- FAO soil classification
- International Committee on Anthropogenic Soils (ICOMANTH)
- Soil classification
- 1938 USDA soil taxonomy
External links
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Wikimedia Commons has media related to: USDA Soil taxonomy |
- USDA / NRCS soil taxonomy webpage
- Soil taxonomy document
- A Compendium of On-Line Soil Survey Information: Soil Classification Systems
- USDA-NRCS Web Soil Survey
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