云南省大关县地质灾害风险性评价及分区研究
STUDY ON GEOLOGICAL HAZARDS RISK ZONING ASSESSMENT OF DAGUAN COUNTY,YUNNAN PROVINCE
和子祺 1李波 1蔡映坤 1刘志明 1马云燕1
作者信息
- 1. 昆明理工大学国土资源工程学院,昆明 650093
- 折叠
摘要
云南省大关县地质灾害类型主要以滑坡、崩塌、泥石流为主.根据云南省最新重点区域地质灾害精细化调查与风险评价工作在大关县域共发现地质灾害点567处,比2015年1∶50 000详查工作新增灾害点203处.包括滑坡299处,崩塌210处,泥石流56条以及地面塌陷2处.本文借助地理信息系统(GIS)空间分析技术,结合最新的地质灾害精细化调查成果以及第三次全国国土调查数据,运用层次分析法及信息量法对云南省大关县的地质灾害进行风险性的评价及分区.研究结果可为云南省大关县地质灾害防治以及地质灾害风险管控提供依据.
Abstract
The types of geological hazards in Daguan County,Yunnan Province are mainly landslides,collapses,and debris flows.According to the latest detailed survey and risk assessment of Yunnan Province,a total of 567 geological disasters were found in Daguan County,203 new disaster compared with the 1∶50 000 detailed survey in 2015.Including 299 landslides,210 collapses,56 debris flows and 2 ground subsidence.With the help of spatial analysis technology of geographic information system(GIS),combined with the latest refined survey results of geological disasters and the data of the third national land survey,using the analytic hierarchy process(AHP)and the information computation method to assess the risk of geological disasters and zone in Daguan County,Yunnan Province.The research results can provide a basis for the prevention and control of geological hazards and the risk management of geological hazards in Daguan County,Yunnan Province.
关键词
地质灾害/风险性评价/层次分析法/信息量法/大关县Key words
geological hazards/risk assessment/analytic hierarchy process/information computation method/Daguan County引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据