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以 2 0 0 0年TM影像为基础获取的土地利用现状数据为依据 ,结合近 4 0a的气象资料 ,选择干旱、沙漠化、水土流失、白灾、盐渍化、霜冻等指标 ,应用层次分析法 ,对内蒙古自治区自然灾害进行综合分区与评价研究。进一步根据评价结果划分了极重灾害区、重灾害区、中灾害区、轻灾害区、微灾害区等 5个灾害等级区域 ,并结合不同区域的自然环境与社会经济状况进行了自然灾害的综合分析与评价
Based on the data of land use acquired on the basis of TM images in 2000, combining with the meteorological data of the past 40 years, the indexes of drought, desertification, soil erosion, white catastrophe, salinization and frost were selected and analyzed by analytic hierarchy process , A comprehensive study of natural disasters in Inner Mongolia Autonomous Region and evaluation. Based on the results of the assessment, five disaster-level areas such as severely disastrous, severely disastrous, disastrously disastrous, disastrous, disastrous have been identified and integrated with natural disasters based on the natural environment and socio-economic conditions in different regions Analysis and evaluation