华南地质2024，Vol.40Issue(1)：152-161,10.DOI:10.3969/j.issn.2097-0013.2024.01.011
基于信息量法的湖北省秭归县滑坡易发性评价
Evaluation of Landslide Susceptibility in Zigui County,Hubei Province Based on Information Quantity Method
摘要
Abstract
In this paper,Zigui County,Hubei Province is taken as the research area,and eight evaluation fac-tors such as elevation,water system,road,rock and soil type,aspect,slope,land cover type and annual rain-fall are selected to carry out landslide susceptibility evaluation,and the correlation analysis of each evalua-tion factor is completed using ArcGIS software data analysis tool.The elevation and aspect factors with corre-lation value of evaluation factors|r|>0.1 are eliminated,and the information value of each factor is calculat-ed.The information model is used to evaluate the landslide susceptibility.The study area is divided into four regions:(1)Extremely high susceptibility area,with an area of 140.0864 km2,accounting for 6.18%of the to-tal area of the study area,are mainly distributed along the banks of Yangtze River and its tributaries.(2)High-prone areas,with an area of 1002.445 km2,accounting for 44.23%,are mainly distributed on both sides of the extremely high-prone areas,and some are located in the surrounding areas of Lianghekou Town and Moping Township;(3)The medium-prone area,with an area of 833.8711 km2,accounting for 36.79%,is dis-tributed in strips on both sides of the extremely high-prone area and is scattered.(4)Low-prone areas,with an area of 290.2564 km2,accounting for 12.80%of the total area,are mainly distributed in mountainous areas with sparse population.The results of this study are in good agreement with the actual situation in the study area,which can better reflect the distribution of landslide disasters in the study area and provide a basis for di-saster prevention and mitigation in Zigui County.关键词
滑坡/易发性评级/信息量模型/评价因子/秭归县Key words
landslide/susceptibility assessment/information value model/assessment factors/Zigui County分类
天文与地球科学引用本文复制引用
林振,卢书强,梅军..基于信息量法的湖北省秭归县滑坡易发性评价[J].华南地质,2024,40(1):152-161,10.基金项目
国家自然科学基金项目(42077234) （42077234）
