Wiktionary
desert soil
n. A soil variety typically found in arid climates, usually with little leaching and minimal humus content. Referred to as an "aridisol" in the nomenclature of the United States Department of Agriculture's Natural Resources Conservation Service.
WordNet
desert soil
n. a type of soil that develops in arid climates [syn: desertic soil]
Usage examples of "desert soil".
As we hit the red desert soil strewn with rocks, the plane bounced wildly.