南通市自然灾害时空变化及风险区划

英文篇名：Space-time Change and Risk Regionalization of Natural Disaster in Nantong
中文刊名：水土保持研究
英文刊名：Research of Soil and Water Conservation
作者：蒋庆丰 ; 游珍
英文作者：JIANG Qing-feng~(1 ; 2) ; YOU Zhen~3(1.College of Geographical Science ; Nantong University ; Nantong 226007 ; China ; 2.Nanjing Institute of Geography and Llimnology ; Chinese Academy of Science ; Nanjing 210008 ; China ; 3.Institute of Soil and Water Conservation ; Chinese Academy of Science and Ministry of Water Resources ; Yangling ; Shaanxi 712100 ; China)
中文关键词：GIS ; 自然灾害 ; 风险区划 ; 南通市
英文关键词：GIS ; natural disaster ; risk regionalization ; Nantong city
出版日期：2005-06-30
机构：南通大学地理科学学院,中国科学院水利部水土保持研究所江苏南通226008,中国科学院南京地理与湖泊研究所,江苏南京210008 ,陕西杨陵712100
年：2005
期：03
出版单位：水土保持研究

摘要

对南通市的地震、塌岸、水土流失、水灾、旱灾、雹灾、寒害和台风等8种自然灾害进行了详细的分析和研究,初步得出了南通市自然灾害的时空分布特点。在此基础上,从自然致灾因子危险性和承灾体易损性2个方面选取评价指标,通过GIS软件分析分别得到南通市自然致灾因子危险性分区图和社会经济易损性分区图,叠加后生成南通市自然灾害风险区划基本单元,采用自下而上的定量区划方法,合并得到自然灾害风险区划图,最后分别论述了每个风险区的自然灾害和社会经济的特征。
Taking earthquake,collapse,water and soil loss,flood, drought,hail,cold disaster and typhoon as study objects,the authors get the laws and characteristics about time-space distribution of natural disasters in Nantong city preliminarily.On the basis of the analyse of space-time laws,assessment indices from hazard property of natural disaster-causing factors and vulnerability of natural disaster bodies are selected,the map of natural hazards and the map of vulnerability of social economy were produced by using geographical information system analyzing.The basic units of natural disaster risk regionalization also can be produced by overlaying the two produced maps.Adopting the bottom-up regionalization method and combining the basic units from bottom to up,the map of natural disaster risk regionalization and three risk regions can be obtained.The characteristics of every risk regions were discussed in details in the last.

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