Causes of rapid expansion of blown-sand disaster and long-term trend of desertification in Northern China
Rapid expansion of blown-sand disaster in china has been analyzed synthetically in this paper.According to geographical pattern of the desert and sandy land evolution,middle and long-term trend of desertification in Northern China has also been discussed.It can be thought that the rapid expansion of blown-sand disaster is caused by the human activities in the sandy regions under the background of increasing drought.However,the present distribution of drift sands does not exceed the extension of that in the period of LGM.The occurrence trend of blown-sand disaster will depend on the changes of precipitation,wind and pattern of landuse under the background of global warming in the future.
NETL
NSTL
万方数据
维普
