基于下垫面孕灾环境因子的锡林郭勒地区沙尘暴风险评价  

Risk Assessment of Sand Storm Disaster in Xilingol Region Based on the Underlying Surfaces Factors

作　　者：武健伟[1,2] 李锦荣[3] 邢恩德[3] 黄丽娜 

机构地区：[1]国家林业局调查规划设计院,北京100714 [2]中国荒漠化监测中心,北京100714 [3]水利部牧区水利科学研究所,呼和浩特010020 [4]锡林郭勒盟气象局,锡林浩特026000

出　　处：《林业科学》2012年第9期1-7,共7页Scientia Silvae Sinicae

基　　金：引进国际先进林业科学技术(2009-4-42);内蒙古自然科学基金项目(2010MS0614)

摘　　要：运用层次分析法结合GIS软件,建立基于下垫面孕灾环境因子的锡林郭勒地区沙尘暴风险评价指标体系,评价锡林郭勒地区3个时间段(1981—1990,1991—2000,2001—2010)的沙尘暴风险。结果表明:30年间锡林郭勒地区沙尘暴风险呈增加趋势,且西部地区高于东部地区。Xilingol region is one of the major typical steppes and a major ecological barrier around Beijing, however it is located in an ecologically fragile area. Using AHP and GIS technology, An assessment system of sandstorm risk was established based on the underlying surfaces factors. This article analyzed sandstorm risk assessment during the three periods （1981-1990, 1991-2000, 2001-2010） in the Xilingol region. The assessment result showed that the risk greatly changed during the recent 30 years. The risk had a gradually increasing trend and the risk in the western was higher than thatin the eastern at the same period.

关 键 词：沙尘暴 下垫面 孕灾环境 风险评价 锡林郭勒 

分 类 号：S761.2[农业科学—森林保护学]