Aridization of a land

a complicated and diverse complex of processes of reduction of territories’ wetting extent and cutting of biological productivity of ecosystems, caused by it. A.l. takes place as owing to natural (cyclic changes of a climate), so for anthropogenous (a pumpdown of underground waters, erosion, dust storms) reasons. A consequent of A.l. is a desertification and recess of dryness extent of the deserted territories.