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

Wu Jianwei, Beijing Forestry University, Beijiag（China); Li Jinrong, Beijing Forestry University, Beijiag（China); Xing Ende

Journal Article

Risk Assessment of Sand Storm Disaster in Xilingol Region Based on the Underlying Surfaces Factors [2012]

Wu Jianwei, Beijing Forestry University, Beijiag（China),Key Laboratory for Silviculture and Conservation of Ministry of Education; Li Jinrong, Beijing Forestry University, Beijiag（China),Key Laboratory for Silviculture and Conservation of Ministry of Education; Xing Ende;

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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.