An Acrisol is a Reference Soil Group of the
World Reference Base for Soil Resources (WRB). It has a clay-rich subsoil and is associated with humid, tropical climates, such as those found in
Brazil, and often supports
forested areas. In the
USDA soil taxonomy,
Acrisols correspond to the Humult, Udult and Ustult suborders of the
Ultisols and also to
Oxisols with a kandic horizon and to some
Alfisols.
[CHESWORTH, WARD. Encyclopedia of Soil Science. 2001. pp. 22-24] The Acrisols low fertility and toxic amounts of aluminium pose limitations to its agricultural use, favouring in many places its use for
silviculture, low intensity pasture and protected areas. Crops that can be successfully cultivated, if climate allows, include
tea,
rubber tree,
oil palm,
coffee and
sugar cane.
See also
*
Soil horizon
A soil horizon is a layer parallel to the soil surface whose physical, chemical and biological characteristics differ from the layers above and beneath. Horizons are defined in many cases by obvious physical features, mainly colour and texture. ...
*
Soil type
A soil type is a taxonomic unit in soil science. All soils that share a certain set of well-defined properties form a distinctive soil type. Soil type is a technical term of soil classification, the science that deals with the systematic categoriz ...
References
Acrisols
Further reading
* W. Zech, P. Schad, G. Hintermaier-Erhard: Soils of the World. Springer, Berlin 2022, Chapter 7.3.1.
External links
profile photos (with classification)WRB homepage
profile photos (with classification)IUSS World of Soils
{{Soil type
Pedology
Types of soil