斜坡单元划分在彭阳县地质灾害危险性区划中的应用  

Application of Slope Unit Division to Risk Zoning of Geological Hazards of Pengyang County

作　　者：尚慧[1] 倪万魁[1,2] 程花[1] 

机构地区：[1]长安大学地质工程与测绘学院,陕西西安710054 [2]冻土工程国家重点实验室,甘肃兰州730050

出　　处：《中国水土保持》2011年第3期48-50,69,共3页Soil and Water Conservation in China

基　　金：受国家自然科学基金重点项目(41030741)资助

摘　　要：斜坡单元是滑坡、崩塌等地质灾害发育的基本单元,能够综合体现各种控制与影响因素的作用,适用于地质灾害危险性区划。阐述了斜坡单元划分的基本原理,基于ArcGIS,采用斜坡单元作为评价单元,对彭阳县地质灾害进行了危险性区划,分区结果具有较好的准确性和预测性。斜坡单元划分方法可为地质灾害危险性区划提供参考,具有现实的防灾减灾意义。Slope unit is the basic unit of the development of geological hazards of landslide and collapse,which can comprehensively reflect the functions of various factors of control and effect and be suit to apply in risk zoning of geological hazards.The paper elaborates the primary principles of slope unit division and conducts the risk zoning of geological hazards in Pengyang County based on ArcGIS by taking slope unit as evaluation unit.The results show that it has good accuracy and predictability.The method of slope unit division can provide reference for risk zoning of geological hazards and has a realistic meaning of disaster prevention and reduction.

关 键 词：斜坡单元 地质灾害 危险性区划 彭阳县 

分 类 号：P694[天文地球—地质学]