地质灾害与环境保护2023，Vol.34Issue(4) ：13-19.

云南横断山区乡镇滑坡灾害易发性评价

THE SUSCEPTIBILITY EVALUATION OF TOWNSHIP LANDSLIDE DISASTER IN HENGDUAN MOUNTAINOUS AREA OF YUNNAN

吴兴贵 王蓝婷 丁梓逸 张小亮 周源海 王宇栋
地质灾害与环境保护2023，Vol.34Issue(4) ：13-19.
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云南横断山区乡镇滑坡灾害易发性评价

THE SUSCEPTIBILITY EVALUATION OF TOWNSHIP LANDSLIDE DISASTER IN HENGDUAN MOUNTAINOUS AREA OF YUNNAN

吴兴贵 1王蓝婷 1丁梓逸 1张小亮 2周源海 3王宇栋1
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作者信息

  • 1. 昆明理工大学公共安全与应急管理学院,昆明 650093
  • 2. 中国有色金属工业昆明勘察设计研究院有限公司,昆明 650041
  • 3. 云南凌业地基基础工程有限公司,昆明 650051
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摘要

横断山区地质灾害发育多,其中属滑坡灾害易发育,危害大,且山区乡镇多地势环境复杂,不规范活动较多,易引发滑坡.因此对该区域乡镇进行滑坡易发性评价具有重要意义.以普洱市澜沧县安康佤族乡为例,选择高程、坡度、坡向、起伏度等8个影响因素建立滑坡易发性评价指标体系,构建了小区域滑坡灾害易发性评价指标层次结构模型,利用层次分析法(AHP)确定出各个因子权重值.基于易发综合强度指数法,利用ArcGIS地理空间分析评价了研究区滑坡易发性,划分了四类区域:高易发区,面积占比14.53％;较高易发区,面积占比34.06％;中易发区,面积占比33.57％;低易发区,面积占比17.84％.为安康佤族乡防灾减灾以及滑坡灾害治理提供参考,也为小区域滑坡灾害易发性评价提供了思路方法.

Abstract

Geological hazards are prevalent in the Hengduan Mountains,Landslide disaster is one of the most development-prone and harmful disasters,in addition,mountainous towns and villages have complex terrain environments and more irregular activities,which are easy to cause landslides.Therefore,it is of great significance to assess the landslide susceptibility of rural townships in this region.Taking the Ankang Wa ethnic township in Lancang County,Pu'er City as an example,this study established an evaluation index system for landslide susceptibility using eight influencing factors such as elevation,slope,aspect,and relief.The hierarchical structure of landslide susceptibility evaluation indicators for small-scale areas was constructed.The Analytic Hierarchy Process(AHP)was used to determine the weight values of each factor.Based on the Comprehensive Vulnerability Index method,the landslide vulnerability of the study area was evaluated using ArcGIS spatial analysis.Four categories of regions were identified:high vulnerability area with an area proportion of 14.53％,relatively high vulnerability area with an area proportion of 34.06％,medium vulnerability area with an area proportion of 33.57％,and low vulnerability area with an area proportion of 17.84％.It provides reference for disaster prevention and reduction and landslide disaster control in Ankang Wa Nationality Township,and also provides ideas and methods for small regional landslide disaster susceptibility evaluation.

关键词

地质灾害/GIS/综合指数/滑坡/易发性

Key words

geological disaster/GIS/comprehensive index/landslide/susceptibility

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出版年

2023
地质灾害与环境保护
成都理工大学 地质灾害防治与地质环境保护国家重点实验室

地质灾害与环境保护

影响因子：0.39
ISSN：1006-4362
参考文献量15
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