农村洪水淹没范围及洪灾损失评估研究
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摘要
针对目前国内洪灾损失评估体系尚不完善的问题,利用ArcGIS软件及无源淹没算法获取洪灾淹没面积和水深分布,基于已有统计资料绘制辽河流域农村房屋及室内财产洪灾水深损失率曲线,结合淹没水深,查取相应损失率,建立了洪灾损失评估模型,并对法库县三面船镇农村房屋及室内财产进行了洪灾损失评估。结果表明,该方法有效、实用,为决策者确定防灾减灾目标及制定防灾减灾决策提供了重要科学依据。
The flood loss evaluation system has not been formed in the domestic at present.ArcGIS software and non-source flood inundated algorithm are applied to obtain the distribution of flood inundation area and water depth.Based on the existing statistical data,the water depth-damage rate curve of rural houses and indoor property in Liaohe basin is plotted.Combined with the submerged depth and referred to the corresponding loss percentage,the flood loss evaluation model is established to evaluate flood loss of rural houses and indoor property in Sanmianchuan Town of Faku City.The results show that the proposed method is effective and practical,which can provide an important scientific basis for policy maker to determine the goal of flood disaster prevention and alleviation and formulate decision making.
The flood loss evaluation system has not been formed in the domestic at present.ArcGIS software and non-source flood inundated algorithm are applied to obtain the distribution of flood inundation area and water depth.Based on the existing statistical data,the water depth-damage rate curve of rural houses and indoor property in Liaohe basin is plotted.Combined with the submerged depth and referred to the corresponding loss percentage,the flood loss evaluation model is established to evaluate flood loss of rural houses and indoor property in Sanmianchuan Town of Faku City.The results show that the proposed method is effective and practical,which can provide an important scientific basis for policy maker to determine the goal of flood disaster prevention and alleviation and formulate decision making.
引文
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[2]丁志雄.基于RS与GIS的洪涝灾害损失评估技术方法研究[D].北京:中国水利水电科学研究院,2004.
[3]刘仁义,刘南.基于GIS的复杂地形洪水淹没区计算方法[J].地理学报,2001,56(1):1-6.
[4]魏一鸣,金菊良,杨存建,等.洪水灾害风险管理理论[M].北京:科学出版社,2002.
[5]陈秀万.洪水灾害损失评估系统——遥感与GIS技术应用研究[M].北京:中国水利水电出版社,1999.
[6]王艳艳,陆吉康,陈浩.洪灾损失评估技术的应用[J].水利水电技术,2002,33(10):30-33.
[7]王宝华,付强,谢永刚,等.国内外洪水灾害经济损失评估方法综述[J].灾害学,2007,22(3):95-99.
[8]尹之潜,李树桢,杨淑文,等.震害与地震损失的估计方法[J].地震工程与工程振动,1990,10(1):99-108.
[9]冯民权,周孝德,张根广.洪灾损失评估的研究进展[J].西北水资源与水工程,2002,13(1):32-36.
[10]苏明道,张龄方,林美君,等.防洪示範區淹水境況模擬與決策支援系統之研究一子計畫:基隆河流域淹水損害評估模式與相關資料庫建立之研究(Ⅱ)[R].台北:国立台湾大学生物环境系统工程学系,2002.
[11]石勇.灾害情景下城市脆弱性评估研究——以上海市为例[D].上海:华东师范大学,2010.
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