Driving Mechanism and Status of Sandy Desetification in the Northern Tibet Plateau

The northern Tibet Plateau is the main part of Qinghai xizang (Tibet) Plateau and the typical region of the Qinghai xizang (Tibet) plateau sandy desertification distribution zone, which is one of the three distribution zones of sandy desertification in China. It is a very important region for the research on the process and driving mechanism of modern sandy desertification. This paper, on the basis of the data of recent sandy desertification surveying in Xizang (Tibet) Plateau, researches the status features of sandy desertification in the northern Tibet Plateau by analysis the type, area and distribution, analyses the influencing factors and driving mechanism of modern sandy desertification in the northern Tibet Plateau by use of the qualitative and quantitative methods. The research results of the forcing mechanism and status of sandy desertification in the northern Tibet Plateau can be concluded that The Northern Tibet Plateau is an important distribution region in China, which has large area, multiple type, high degree, wide distribution and serious damage of modern sandy desertification. The origination and development of sandy desertification in the northern Tibet Plateau is the results of comprehensive functions of natural factors and human factors, physical processes and artificial processes, in which the climatic change plays a leading role. The climatic change under the influence of global change is the main driving force in the modern process of sandy desertification in the northern Tibet Plateau.