Also known as dry soils, Aridisols are pale mineral soil
s commonly found in arid regions such as the Sahara
and Gobi Desert
in this soil group are often shallow because soil formation is characterized by areas of low water supply and sparse vegetaion cover.
Aridisols typically have accumulations of calcium carbonate
, soluble salt
s, or sodium
in one of its horizons
. Carbonates often cement together producing hard layers which are unpenetrable to plant roots, impervious
to water, and difficult to excavate for building.
Aridisols are not suitable for agriculture
. However, with irrigation
and proper management, Aridisols can be very productive. Without proper management, soluble salts can buildup resulting in a wasteland
Aridisols occur on nearly 12% of land area on Earth in desert regions.
Suborders include Argids (clay
), Calcids (carbonate), Cambids (typical Aridisols), Cryids (cold
), Durids (duripan
), Gypsids (gypsum
), and Salids (salty