DESERTIFICATION HAZARD AND FARMING GRAZING SUSTAINABLE DEVELOPMENT IN LINGWU YANCHI REGION OF NINGXIA

In the view of the desertification hazard process in Lingwu Yanchi region of Ningxia Hui Autonomous Region, the paper analyzed the interaction between the physical environment and the human activities, and discussed the social problems of controlling sandy land by using the way of “decreasing farming for increasing grazing” and developing agriculture and animal husbandry. The results indicated that the changes of desertification in the Quaternary geological periods was a kind of climatic geomorphic processes, and a kind of climate human processes in human history, which are mainly controlled by climatic conditions and partly interfered by human economic activities. Both of the physical environment and the human activities have double effects to aggravate or reverse the desertification.