acrisol

{{Short description|Soil type}}

{{Infobox soil

|name=Acrisol

|alternative_name=

|image=Acrisolprof.JPG

|image_size=250px

|image_caption=A Stagnic Acrisol profile from Malaysia

|classification_system=WRB

|profile=AEBtC

|code=AC

|parent_material=various

|climate=tropical, humid subtropical

}}

An Acrisol is a Reference Soil Group of the World Reference Base for Soil Resources (WRB).{{Cite web|url = https://wrb.isric.org/files/WRB_fourth_edition_2022-12-18.pdf|title = World Reference Base for Soil Resources, fourth edition|author=IUSS Working Group WRB|year = 2022|publisher = International Union of Soil Sciences, Vienna}} It has a clay-rich subsoil. It is associated with humid, tropical climates, such as those found in Brazil, and often supports forested areas.{{Cite book|title=Chemistry of Variable Charge Soils |author=T. R. Yu|year= 1997|publisher=Oxford University Press|isbn=0-19-509745-9|url=https://books.google.com/books?id=70yqVLEn95QC&dq=Acrisol&pg=PA36|page=36}} In the USDA soil taxonomy,{{Cite web|url = https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/class/taxonomy/?cid=nrcs142p2_053580|title = Keys to Soil Taxonomy, twelfth edition|author=Soil Survey Staff|year = 2014|publisher = United States Department of Agriculture, Washington, D.C.}} 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 Acrisol's 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 the climate allows, include tea, rubber tree, oil palm, coffee and sugar cane.