基于GIS的哀牢山戛洒镇小流域滑坡易发性评价  

GIS-based landslide susceptibility assessment at small watershed in Jiasa Town,Ailao Mountain area

作　　者：徐为[1,2] 李铁锋[2] 胡瑞林[1] 温铭生[2] 刘滨[2] 

机构地区：[1]中国科学院地质与地球物理研究所工程地质力学重点实验室,北京100029 [2]中国地质环境监测院,北京100081

出　　处：《水文地质工程地质》2011年第5期110-114,119,共6页Hydrogeology & Engineering Geology

基　　金：国家"十一五"科技支撑计划课题(2006BAC04B01;2008BAK50B04)

摘　　要：根据研究区的基本情况,选择坡度、坡向、地层岩性、距断层距离、降雨、土地利用等6个评价因子,采用滑坡灾害易发性评价的GIS与AHP耦合模型进行戛洒镇滑坡灾害易发性评价,并将滑坡灾害分为极高、高、中、低和极低易发区5个区域进行了滑坡灾害易发性评价结果分析,以期为后期的小流域滑坡风险评估研究服务。According to the basic situation of the research region,six evaluation factors,including slope,aspect of slope,formation lithology,distance from the fault,rainfall and land use type were selected to evaluate the landslide susceptibility with GIS and AHP in Jiasa Town.The resulting susceptibility map showed five classes of landslide susceptibility,i.e.extremely high,high,moderate,low and extremely low.The landslide susceptibility evaluation results will be useful for later watershed landslide risk assessment.

关 键 词：滑坡灾害 易发性 GIS AHP 信息量模型 

分 类 号：P642.22[天文地球—工程地质学]