The undergrounds of nature and social economy for Tuweihe watershed were deal with in this paper

Meanwhile

the authors analysed the laws and characteristics of soil and water loss and made the study on the regionalization

the morphological

features of desert

the formation causes of wind erosion and desertization，and the ways and intensity of soil erosion

The exploitative way and control measures arrangement of soil and water loss were put forward inorder to supply scientific basis for controlling the tributaries of the sediment rich area with much coarse sand in the contiguous area of Shanxi，Shaanxi and Inner Mongolia