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.
出处
《中国水土保持》
北大核心
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
关键词
斜坡单元
地质灾害
危险性区划
彭阳县
slope unit
geological hazards
risk zoning
Pengyang County
