At present

in the arid wind-desert region

by the means of constructing forestation

developing to defend and control the sands is the main technical measures by which we can carry on the ecological construction and the preventing and controlling land degeneration.Therefore

through selecting the symbol target of soil structure

the moisture content

the nutrient

the vegetation as the appraisal targets

which showed land degenerated or not

we studied these indexes changes after constructing the artificial Caragana intermedia in the degeneration sand of arid wind-desert region.The results showed: in the arid wind-desert region of Yanchi

Ningxia

constructing suitable density artificial Caragana intermedia(1 665 clump /hectare

2 490 clump /hectare) could increase the vegetation fraction

comprehensively improve the soil physical and chemical property

the soil moisture condition as well as the stability of the vegetation community in the degenerated sand.