基于GIS的深圳市滑坡危险性区划研究  

Research on Landslide Hazard Zonation of Shenzhen Based on GIS

作　　者：高振记[1] 邬伦[2] 赵兴征[3] 

机构地区：[1]中国环境科学研究院,北京100012 [2]北京大学地球与空间科学学院,北京100021 [3]中国科学院生态环境研究中心,北京100021

出　　处：《灾害学》2014年第1期67-74,共8页Journal of Catastrophology

基　　金：国家自然科学基金(40701135);环保公益性行业科研专项(2011467026)

摘　　要：深圳市在快速城市化过程中形成了大量人工边坡,这些边坡在强降雨及人为活动干扰下具有发生崩塌和滑坡的潜在危险性,给当地人民群众生命财产安全带来较大威胁。基于深圳市斜坡调查结果,选择地层岩性、地质构造、地形、植被、水文、人类活动5个因子37个变量,构建了深圳市滑坡危险性区划评价指标体系。基于信息量模型,利用GIS空间分析工具,完成了深圳市滑坡危险性区划工作,并利用野外调查第一手资料对危险性区划进行了验证。结果表明,深圳市滑坡危险区面积为12.7 km2,占评价总面积的0.67%;较危险区面积为676.9 km2,占评价总面积的35.8%;较稳定区面积为1 040.5 km2,占评价总面积的55%;稳定区面积为160.1 km2,占评价总面积的8.5%。More and more human-cutting slopes have been developed in Shenzhen City during the past two decades out of rapid urbanization. These slopes are very dangerous to human being in case of human intervention or heavy rain. An index system of landslide risk zonation of Shenzhen is built based on the results of Shenzhen slope investigation. The 5 factors and 37 variables index system includes formation lithology,geological structure,terrain,vegetation,hydrology and human activity. Then landslide risk zonation of Shenzhen is carried out based on GIS spatial analysis and information content model. Finally,the zonation is verified based on landslide field investigation data. Results show the zonation are scientific and rational and can be served as the reference and guidance of Shenzhen landslide warning.

关 键 词：广东深圳 滑坡 危险性区划 信息量 GIS 

分 类 号：P652.2[天文地球—地质学] X4[环境科学与工程—灾害防治]