Chromosol AU

A representative soil profile in a map unit of clays and shallow loamy duplex. These soils are from the Stirlings to Ravensthorpe area of Australia. (Base photo provided by Department of Primary Industries and Regional Development, Agriculture and Food, Government of Western Australia with revision.)

 

Topsoil:

Surface soils are hard loams

Subsoil:

Dense poorly drained loamy to light clay subsoils

Subsoils can range from mildly acidic to highly alkaline with carbonate at depth

Saline and sodic subsoils common.

 

For more information about these soils including common management constraints, visit:

www.agric.wa.gov.au/mycrop/mysoil-clays-and-shallow-loamy...

 

In the Australian soil classification system, the soils in this unit include: Yellow or Brown Chromosols, Yellow or Brown Sodosols, Grey or Yellow Dermosols, and Grey or Yellow Kandosols.

 

Chromosols are soils that display a strong texture contrast between surface (A) horizons and subsoil (B) horizons. The upper part of the subsoil ranges from slightly acid to alkaline (pH >5.5) but is not sodic. Using the Australian Soil Classification, Chromosols can be grouped further (in to Suborders) 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 (in to Great Groups) such as the nutrient level capacities and ratios and the presence of carbonate or lime.

 

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:

sites.google.com/site/dinpuithai/Home

 

Done