GIS和层次分析法在地震地质灾害小区划中的应用
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摘要
以GIS为平台,结合层次分析法对地震地质灾害的影响因素进行深入研究,评价单灾种在50年超越概率10%下的危险性。建立地震地质灾害危险性指数模型,将单灾种评价结果进行空间叠加分析,得到该超越概率下的地震地质灾害小区划图。根据地震地质灾害危险性指数将研究区分为无危险区、低危险区、中危险区、高危险区,从而为区域地震地质灾害防治规划、国土资源的合理开发及地质环境的妥善保护提供重要依据。
By taking GIS as a platform and combined with AHP,the factors of seismic geological disasters are studied deeply for evaluating single-hazard risk under the 10% probability of exceedance in 50 years;risk index model of the seismic geological disasters is established,by taking spatial overlay analysis of the evaluation results of a single disaster,the small division map under the probability of the earthquake is obtained.According to seismic geological disasters risk index the study includes non-risk zone,low-risk zone and the risk zone,high-risk zone.It provides an important basis for the prevention planning of regional seismic geological disasters,the rational development of land resources and proper protection of geological environment.
By taking GIS as a platform and combined with AHP,the factors of seismic geological disasters are studied deeply for evaluating single-hazard risk under the 10% probability of exceedance in 50 years;risk index model of the seismic geological disasters is established,by taking spatial overlay analysis of the evaluation results of a single disaster,the small division map under the probability of the earthquake is obtained.According to seismic geological disasters risk index the study includes non-risk zone,low-risk zone and the risk zone,high-risk zone.It provides an important basis for the prevention planning of regional seismic geological disasters,the rational development of land resources and proper protection of geological environment.
引文
[1]刘凤民,张立海,刘海青,等.中国地震次生地质灾害危险性评价[J].地质力学学报,2006,12(2):127-131.
[2]陈晓利,叶洪,程菊红.GIS技术在区域地震滑坡危险性预测中的应用——以龙陵地震滑坡为例[J].工程地质学报,2006,14(3):333-338.
[3]姚玉增,任群智.层次分析法在山地地质灾害危险性评价中的应用——以辽宁凌源地区为例[J].水文地质工程地质,2010,37(2):130-134.
[4]庄建琦,崔鹏,葛永刚,等.“5.12”汶川地震崩塌滑坡危险性评价——以都汶路沿线为例[J].岩石力学与工程学报,2010,29(2):3735-3742.
[5]光磊.基于GIS的信息量法在滑坡危险性评价中的应用[J].地质与资源,2005,14(3):231-233.
[6]阮沈勇,黄润秋.基于GIS的信息量法模型在地质灾害危险性区划中的应用[J].成都理工学院院报,2001,28(1):89-92.
[7]杜军,杨青华.基于GIS与AHP耦合的汶川震后次生地质灾害风险评估[J].中国水土保持,2009,11(3):14-17.
[8]张永军,侯云龙,刘武.层次分析法和GIS空间分析法在兰州市区地质灾害易发性评价中的应用[J].甘肃地质,2009,18(4):84-88.
[2]陈晓利,叶洪,程菊红.GIS技术在区域地震滑坡危险性预测中的应用——以龙陵地震滑坡为例[J].工程地质学报,2006,14(3):333-338.
[3]姚玉增,任群智.层次分析法在山地地质灾害危险性评价中的应用——以辽宁凌源地区为例[J].水文地质工程地质,2010,37(2):130-134.
[4]庄建琦,崔鹏,葛永刚,等.“5.12”汶川地震崩塌滑坡危险性评价——以都汶路沿线为例[J].岩石力学与工程学报,2010,29(2):3735-3742.
[5]光磊.基于GIS的信息量法在滑坡危险性评价中的应用[J].地质与资源,2005,14(3):231-233.
[6]阮沈勇,黄润秋.基于GIS的信息量法模型在地质灾害危险性区划中的应用[J].成都理工学院院报,2001,28(1):89-92.
[7]杜军,杨青华.基于GIS与AHP耦合的汶川震后次生地质灾害风险评估[J].中国水土保持,2009,11(3):14-17.
[8]张永军,侯云龙,刘武.层次分析法和GIS空间分析法在兰州市区地质灾害易发性评价中的应用[J].甘肃地质,2009,18(4):84-88.
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