GIS支持下的滑坡空间分布危险度区划方法研究

我国是个滑坡灾害多发的国家，滑坡灾害严重地影响我国的广大中、西部山区，给人们的生产生活带来了极大的损失．研究山区滑坡灾害有着重大的意义．文章用GIS的方法对滑坡空间分布危险度区划方法进行探讨，结合实例一嘉陵江重庆北碚段滑坡区划的研究，认为：GIS方法是滑坡研究的有效方法；滑坡研究要从多学科角度进行；各空间专题图层的获取是滑坡空间分布区划的主要工作，结合区域特征，找出区域因子、分析各因子的滑坡的影响、确定层内权重、形成专题图层、最后综合计算各层间权重、生成LHI指数、分级等，是GIS平台下分析滑坡危险性区划的一般步骤．

The Method Researching of Landslide Hazard Zonation Using GIS

China is one of the most landside hazard countries. Every year landside hazards get a lot of damage to our country, especially in middle and west parts. There are many significations to reach landslide hazard. The author has done some researches on landslide hazard zonation using GIS method and based on many practical work,such as the researching of Jialing river in Chongqing Beihei. The author points that：firstly,GIS method is a very effective one used to research landslide hazard; secondly, the landslide hazard researches are multi-scientific researches; thirdly, the obtaining spatial special layers information are the main work in the study ;lastly ,the processes of LHI on GIS are that finding the regional factor,analysis the factor＇s effect, giving inner layer weight, forming special layers, giving between layer weight, generating LHI index ,classified.