地质通报2011，Vol.30Issue(1)：166-172,7.
一种大比例尺的滑坡风险区划方法——以延安市区黄土滑坡风险评价为例
Landslide risk assessment methods and flow on a large scale-A case study of loess land slides risk assessment in Yan'an urban districts,Shaanxi,China
摘要
Abstract
How to assess the landslides risks on a large scale, which is 1:5000～1:25000 and applies for the zoning area tens to hundreds of square kilometers, is a technique problem that deserves to be studied. Using the traditional methods that assess the risk by calculating value for each raster grid based on GIS always can not get the zoning results which meet the accuracy scale required. This paper introduced a new method. Firstly, it identifies the susceptible areas by comprehensively utilizing the high resolution DEM and Quick Bird data. It plots the hazards boundary and interprets the elements at risk on the remote sense image. Secondly, it checks, verifies, or cancels the above results through the field investigation. And finally, it makes the end-produced zoning maps which reach a relative high accuracy. From practical experiences it can see that it is a valid method to do the large scale landslides risk assessment.关键词
大比例尺/滑坡/风险评价/流程与方法分类
天文与地球科学引用本文复制引用
唐亚明,张茂省,薛强..一种大比例尺的滑坡风险区划方法——以延安市区黄土滑坡风险评价为例[J].地质通报,2011,30(1):166-172,7.基金项目
陕西省自然科学基金面上项目《延安宝塔区地质灾害风险管理研究》(编号:2010JM5010)、中国地质调查局地调项目《延安宝塔区地质灾害监测预警示范)(编号:1212010740907)和国家"十一五"科技支撑计划项目《重大地质灾害监测预警及应急救灾关键技术研究)(编号:2006BAC04B05) （编号:2010JM5010）
