关键词: 沙溪化地区, 贫困县, 贫困原因, 经济发展

Abstract: It is reported that there are 212 counties(city) in China facing the problem of land desertification.In which 82 counties are economically undeveloped.In these 82 counties,economic basis is weak,productive structure is unbalanced and people's living standard is low.This undevelopment is mainly related to the tranditional landuse and its amangement,to the unsound policies for agricultural production,to the lackness of science and technology and to the fast growth of human population,and naturally to the aridity of climate,to the infertility of soil,to the sufficient sand supplies threating arable lands and to the insufficiency of resources.By analyzing these causes,the,author develops the following approaches for these undeveloped counties:(a) to develop master plan for land use and management;(b) to establish strategies for future agriculture;(c) to import and transfer new technologies which are suitable to local conditions;(d) to build water conservancy and to enlarge traffic artery;(e) to control population growth and to heighten population quality;(f) to develop commodity economy and the production;(g) to popularize blood?making economy instead of blood-transfusion economy.