Question

How does the soil profile differ in a desert and a grassland soil?

Answer 1

Basis	Desert soil	Grassland soil
Topsoil humus	Little or no humus	Large amount of organic matter from grass roots
Subsoil	Mixture of sand (about 85%), clay, minerals and salts	Dense root mat that holds moisture and prevents erosion
Overall	Thin, sandy, poorly developed	Deep, rich, well-developed