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我国西南民族地区地震灾害特点及其影响评估

DOI: 10.13577/j.jnd.2014.0410, PP. 67-72

Keywords: 西南民族地区,地震灾害,特点,影响评估

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Abstract:

地震对自然条件恶劣、经济基础薄弱的少数民族地区的社会、经济、环境等有严重的影响。分析了我国西南少数民族地区地震灾害的特点,选用地震发生频率、强度、灾害面积,人口死亡数、受伤数,房屋毁坏面积、损坏面积等指标,依据1949-2013年的地震灾害统计数据,运用层次分析法、地震危害度评估模型,对地震对西南少数民族地区社会-经济-环境复合系统的影响进行了评估。结果表明:云南的玉溪、保山、楚雄、丽江、普洱、昭通、曲靖属于地震灾害严重的区域,四川的汶川、雅安、甘孜、阿坝、绵阳等属于地震灾害严重或较重的区域,西藏的日喀则、昌都受地震的影响较重。评估结果可为少数民族地区防灾减灾提供了参考。

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