关键词: 沙漠化, 危险度, 趋势

Abstract: This paper,on the basis of concept of hazard degree of sandy desertification, establishes the criteria system of hazard degree assessment and gives its assessment model, and makes use of this assessment method to assess the hazard degree of sandy desertification of each county in which there is sandy desertification problem in China. It is proved that the hazard degrees of 76 counties belong to slight degree, 93 middle degrees and 43 severe degrees. From comparison between hazard degree and status now, it is believed that the sandy desertification degrees of 96 counties will go up with the development of sandy desertification, of which the degrees of 71 counties will go up from slight degree to middle degree, 18 counties from middle to severe and 7 counties from slight to severe.

Key words: Sandy desertification, Hazard degree, Trend