摘要
地质灾害易发性分区及评价是地质灾害调查评价的一项重要内容,地质灾害易发程度分区必须同时注重灾害现状和形成条件两类因素。西昌县地质灾害调查与区划中,确定分区主导因子后应用了定性与定量相结合的分区方法,定量化分区以GIS技术为依托,应用了GHGIS网格化与数值化地质灾害图件进行单元要素叠加,将单元信息叠加结果按数值表示,用GHGIS软件作模糊综合评价,自动生成等值线,定量化综合反映全县地质灾害现状。
Divided region of geological hazards is an important part of survey and assessment of geoological hazards. The divided region of geological hazardz must be based on the present situation and genesis of the geological hazards. Both qualitative and quantitative analyses of main factors are applierd to the divided region of geological hazardz in Xichang.The quantitative analysis is based on GIS and GHGIS.
出处
《四川地质学报》
2008年第4期324-326,共3页
Acta Geologica Sichuan
关键词
地质灾害
地质灾害区划
主导因子
四川西昌
geological hazard
divided region of geological hazards
main factor
Xichang, Xichang
