In lIuangfuchuan basin,thc climate is arid and precipitation is start0. Its wegetation has been destroyed severely. The desert area of land is increasing gradually year by year, and a large number of land can not be utilized for agriculture and forest as well as animal husbandry, The distribution of skeleton soil, for example,rocky soil and sandy soil, surpasses gp percent of the total area in the region. The physical properties of soil are undersirable, such as, coarse texture and the sand content as high as 70 percent of soil weight, and the smaller total porosity of soil. '1 he physical moisture content in profile means only 5-10 precept by weight. It has the poor permeability for sandy rocky soil and easily forms runoff at the time of ra:nstorm，which can lead to overflow of Huangfuchuan ri}'er and a great deal of sedimcpt will be bumped into the Yellow River by flooding water regions of serious soil sediment. In order to and water loss and the main area.Therefore, it is one of the of forming much and coarseprevent soil from eroding, it is the fundamental measures of controlling soil and water loss in Huangfuchuan basin to strengthen biological mea.sures such as planting tree and grass,