摘要
利用文中建立的沙漠化危险度综合评价模型，首次对我国沙漠化涉及的２１２个县（旗、市）的沙漠化危害度进行了评价，结果其危险度为７６个轻度、９３个中度和４３个重度。依据危险度对沙漠化未来发展程度的特有代表意义，本世纪末我国将有９６个县（旗、市）的沙漠化的程度升级，其中７１个由轻度升级为中度、１８个由中度上升为重度和７个由轻度跃升为重度，沙漠化发展的形势严峻。
This paper,on the basis of concept of hazard degree of sandy desertification, establishesthe criteria system of hazard degree assessment and gives its assessment model, and makes use of thisassessment method to assess the hazard degree of sandy desertification of each county in which there issandy desertification problem in China. It is proved that the hazard degrees of 76 counties belong toslight degree, 93 middle degrees and 43 severe degrees. From comparison between hazard degree andstatus now, it is believed that the sandy desertification degrees of 96 counties will go up with thedevelopment of sandy desertification, of which the degrees of 71 counties will go up from slight degreeto middle degree, 18 counties from middle to severe and 7 counties from slight to severe.
出处
《中国沙漠》
CSCD
北大核心
1996年第2期127-131,共5页
Journal of Desert Research
基金
"八.五"国家攻关项目
关键词
沙漠化
危险度
发展趋势
Sandy desertification
Hazard degree
Trend
