In order to study the effect on the grassland abiotic environment(soil) of grazing,the research object was the desert sttepe of Sidunzi administrative village in Yanchi county,Ningxia.Using locating field experiment and indoor process analyzed effects on properties of different depth of soil(0-5,5-15,15-25 cm) under different rotation grazing modes in desert steppe including no grazing(CK),freely herd(A),two areas rotational grazing(B),four areas rotational grazing(C) and six areas rotational grazing(D).The...