关键词: 农牧交错带, 退耕还林(草), 结构调整

Abstract: A serious of irrational anthropogenic activities such as over reclamation, over grazing and herb digging etc. are the key factors of eco-environmental degradation and deterioration in the typical zones of Ningxia, Inner Mongolia and Shaanxi Agro pastoral Belt besides the natural factors like climatic condition. The re-afforestation engineering (returning crop plots to forestry and grassland) that is actualized today is just the significant countermeasure to intensify the eco-environmental protection and improvement of this region. After two years of practice the local eco-environment has been obviously improved. For re establishing the ecological barrier, some suggestions about the developing direction of this region and the approaches about returning crop plots to forestry and grassland have been proposed based on the natural features and disaster situation.

Key words: agro-pastoral belt, return crop plots to forestry and grassland, agricultural structure adjustment