基于证据权重法的区域地质环境稳定性遥感评价研究
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摘要
西南三江地区活动构造发育,地质灾害与地震频发,区域地质环境稳定性成为影响该区人居环境最为重要和突出的问题。为快速有效评价区内地质环境的稳定性状况,采用遥感与地理信息技术,结合地质成因进行稳定性相关因子分析,以区域地质环境遥感调查因子,如地震、地质灾害、活动断裂、岩性及地貌等,作为基础地质环境要素,利用证据权重法开展了云南省金沙江流域稳定性定量评价研究,对区域地质环境稳定性进行了分区。结果表明,基于权重的区域地质环境遥感定量评价方法具有较好的可行性,其结果可为区域国土资源规划提供有效的信息基础及决策支持服务。
Active structures as well as geological disasters and earthquakes frequently occur in Sanjiang region,and hence regional geological environment stability becomes the most important problem in the study area,which affects seriously many aspects of people's life.To evaluate the stability of the study area quickly and effectively,this paper adopted remote sensing and GIS technologies to analyze the geological factors related to the stability.With the Weight Method of Evidence based on such regional geological environmental factors as earthquake,geological disaster,active fault,litohology and geomorphology,the authors made a quantitative assessment of the stability in Jinshajiang area of Yunnan province and divided geological environment stability areas.On such a basis,this study not only probed into the quantitative assessment technology and methods for regional geological environment assessment but also provided effective information base and decision support for resources development.
Active structures as well as geological disasters and earthquakes frequently occur in Sanjiang region,and hence regional geological environment stability becomes the most important problem in the study area,which affects seriously many aspects of people's life.To evaluate the stability of the study area quickly and effectively,this paper adopted remote sensing and GIS technologies to analyze the geological factors related to the stability.With the Weight Method of Evidence based on such regional geological environmental factors as earthquake,geological disaster,active fault,litohology and geomorphology,the authors made a quantitative assessment of the stability in Jinshajiang area of Yunnan province and divided geological environment stability areas.On such a basis,this study not only probed into the quantitative assessment technology and methods for regional geological environment assessment but also provided effective information base and decision support for resources development.
引文
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