Sodosol AU
A representative soil profile of a Grey Sodosol in a map unit of shallow sandy duplexes (Albany to Esperance) with grey or yellow sands to 30 centimeters (cm) over neutral sandy clays. (Base photo provided by Department of Primary Industries and Regional Development, Agriculture and Food, Government of Western Australia with revision.)
Topsoil:
Grey acidic sands to 30cm
Gravel (<20 %) can be present usually at the base of the topsoil (sand) layer
Subsoil:
Abrupt boundary change between sand and clay layers at depth <30cm
Clays often sodic, mottled and appear as polyhedral columns
Clay pH mildly acidic
For more information about these soils including common management constraints, visit:
www.agric.wa.gov.au/mycrop/mysoil-shallow-sandy-duplexes-...
In the Australian soil classification system, the soils in this unit include:
Grey, yellow or brown Sodosols and,
Grey, yellow or brown Chromosols
Sodosols have a strong texture contrast between surface (A) horizons and subsoil (B) horizons and the subsoil horizons are sodic. Using the Australian Soil Classification, Sodosols can be grouped further (Suborder) based on the color of the upper 20 cm of the subsoil i.e. red, brown, yellow, grey and black. These can be further differentiated based on subsoil characteristics (Great Groups) such as the level of sodicity (in the upper B horizon) and the presence of carbonate or lime (Subgroup).
For more information about the Australian Soil Classification System, visit;
www.clw.csiro.au/aclep/asc_re_on_line_V2/soilhome.htm
In Soil Taxonomy, these soils are primarily Alfisols. For more information about Soil Taxonomy, visit:
Sodosol AU
A representative soil profile of a Grey Sodosol in a map unit of shallow sandy duplexes (Albany to Esperance) with grey or yellow sands to 30 centimeters (cm) over neutral sandy clays. (Base photo provided by Department of Primary Industries and Regional Development, Agriculture and Food, Government of Western Australia with revision.)
Topsoil:
Grey acidic sands to 30cm
Gravel (<20 %) can be present usually at the base of the topsoil (sand) layer
Subsoil:
Abrupt boundary change between sand and clay layers at depth <30cm
Clays often sodic, mottled and appear as polyhedral columns
Clay pH mildly acidic
For more information about these soils including common management constraints, visit:
www.agric.wa.gov.au/mycrop/mysoil-shallow-sandy-duplexes-...
In the Australian soil classification system, the soils in this unit include:
Grey, yellow or brown Sodosols and,
Grey, yellow or brown Chromosols
Sodosols have a strong texture contrast between surface (A) horizons and subsoil (B) horizons and the subsoil horizons are sodic. Using the Australian Soil Classification, Sodosols can be grouped further (Suborder) based on the color of the upper 20 cm of the subsoil i.e. red, brown, yellow, grey and black. These can be further differentiated based on subsoil characteristics (Great Groups) such as the level of sodicity (in the upper B horizon) and the presence of carbonate or lime (Subgroup).
For more information about the Australian Soil Classification System, visit;
www.clw.csiro.au/aclep/asc_re_on_line_V2/soilhome.htm
In Soil Taxonomy, these soils are primarily Alfisols. For more information about Soil Taxonomy, visit: