Effects of Mixed Grazing System on Plant Community in the Desert Steppe in a short time

The paper studied on the different grazing method(single grazing,mixed grazing and no grazing).Using the Xilamuren steppe as the research object,to discuss the effect of mixed grazing on plant community in the desert steppe.And we made three conclusions:(1)In the mixed grazing treatment,cattle grazing decreased the height of Stipa breviflora so the damage to the sheepskin can be reduced.(2)Mixed grazing made a good use of grassland resources due to the different choices of food.The habits of cattle and sheep are different,and the sheep preferred low,tender and juicy grasses,and the cattle preferred higher plants.(3)In a short time,different animal using different plant resources,and the plant diversity was increased.