Calcisols are soils with a significant secondary accumulation of calcium carbonate resulting from precipitation from solution brought about by evaporation under arid or semi‐arid conditions. The following summary is taken from FAO (2001).
Connotation. Soils with substantial secondary accumulation of lime; from L. calcarius, calcareous
Synonyms. Desert soil is a common international term.
a calcic or petrocalcic horizon within 100 cm of the surface; and
no diagnostic horizons other than an ochric or cambic horizon, an argic horizon which is calcareous, a vertic horizon, or a gypsic horizon.
Parent material. Mostly alluvial, colluvial and aeolian deposits of base‐rich, commonly calcareous, weathering material.