As a process of land degeneration, freeze-thaw desertification takes place in the high altitude regions due to increase in the depth of seasonal thaw layer, which causes an intensive freeze-thaw or sloping process in surface earth.

Desertification: Current State and Trends,Scenarios and Response Options;

Progressing and problems of domestic and international desertification dynamic monitoring and evaluation;

Forecast of influencing factors of desertification in Minqin Oasis of lower reaches of Shiyang River;

Reasonless economic activities of human beings,such as over-reclamation,overgrazing,denudation,misuse and gouging,trigger and accelerate land desertification,which are only the exterior causes of land desertification.

Therefore, measures to constrol land desertification should be focused on abating environmental impact of human activity, for instance population should be controlled and the carrying capacity of the land should be increased.

Through an investigation, the dominant natural factors and degree of land desertification in Taiyuan was made clearly and the reasons for land desertification are analyzed.

Climate Change and Its Impact on Desertization around Qinghai Lake;

The possible impacts of the influencing factors on the development trends of desertization are studied from the mechanisms, and a desertization pre-warning model is established from the basic principles of land production potential degeneration.

Firstly,the implication of desertization and the implication of harsh desertization are differentiated.