Ustochrepts are a great group of soil

Soil

Soil is a natural body consisting of layers of mineral constituents of variable thicknesses, which differ from the parent materials in their morphological, physical, chemical, and mineralogical characteristics...

s, in the USDA soil taxonomy

USDA soil taxonomy

USDA Soil Taxonomy developed by United States Department of Agriculture and the National Cooperative Soil Survey provides an elaborate classification of soil types according to several parameters and in several levels: Order, Suborder, Great Group, Subgroup, Family, and Series.- Example of...

. They are classed in the sub-order Ochrepts, in the order Inceptisols

Inceptisols

Inceptisols are a soil order in USDA soil taxonomy. They form quickly through alteration of parent material. They are older than entisols. They have no accumulation of clays, Iron, Aluminum or organic matter. They have an Ochric or Umbric horizon and a cambic subsurface horizon....

Ustochrepts are characterised by an ochric epipedon, a warm soil temperature regime and an ustic soil moisture regime. Ochric epipedon refers to surface characteristics of the soils. It is characerised as an upper surface with too little organic matter and light colour.