Baicha village is in semi-arid area of loess hilly region, Pengyang county, southern Ningxia.Since 1979, the uncork of comprehesive controlling has been set out.In the beginning of the Eighth Five-year Plan a new eco一agricultural planning was made and carried out.In 1993, a great eco--economical benefit is obtained, it is showed as follows:the area of controlling soil and water loss is 70%.the area covered with forest and grass is 50%, the forested rate is 19%.and 400kg food and 108￥ net income are obtained per capita.There are 97.2% of peasant households with dressing warmly and eating fully, and 13% of households have more than 500kg food and more than 1000￥ net income per capita.