基于GIS的信息熵理论在滑坡危险性评价中的应用——以四川省青川县滑坡为例  

Application of Comentropy to Landslide Hazard Assessment Based on GIS——Taking the Landslide of Qingchuan County in Sichuan Province for Example

作　　者：朱吉祥[1] 张礼中[1] 梁国玲[1] 周小元[1] 

机构地区：[1]中国地质科学院水文地质环境地质研究所,石家庄050803

出　　处：《安全与环境工程》2012年第3期15-19,共5页Safety and Environmental Engineering

基　　金：国家973重点基础研究计划项目(2010CB42880);全国主要城市环境地质综合评价项目(1212010535501)

摘　　要：滑坡危险性评价对滑坡的防灾减灾工作具有重要意义。基于信息熵理论建立了滑坡危险性评价模型,同时综合考虑影响滑坡演变的各种因素,在GIS下对四川省青川县滑坡的监测数据进行了分析和处理,获取了该研究区滑坡危险性区划结果,并将该区不稳定斜坡作为未来可能发生的滑坡进行验证,结果表明其评价结果基本符合实际情况。该评价模型可用于滑坡的危险性评价。Landslide hazard assessment is very important for the landslide disaster mitigation and prevention.This paper establishes the landslide hazard assessment model based on comentropy theory and,by the comprehensive consideration of various factors that influence the landslide,obtains the landslide zonation with the spatial overlay function of geographic information system（GIS）.For the assessment of landslide hazards in Qingchuan County,Sichuan Province,the feasibility of this model is verified by taking the unstable slopes in the area as the possible future landslides.The results indicate that assessing results of the model are basically in accord with the reality,so this model can be used for assessing the risk of landslides.

关 键 词：滑坡 信息熵 危险性评价 四川青川县 

分 类 号：X43[环境科学与工程—灾害防治] P642.22[天文地球—工程地质学]