Evaluation of Landslide Susceptibility in Zigui County, Hubei Province Based on Information Quantity Method

LIN Zhen; LU Shu-Qiang; MEI Jun

doi:10.3969/j.issn.2097-0013.2024.01.011

2024 Vol. 40, No. 1

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LIN Zhen, LU Shu-Qiang, MEI Jun. 2024. Evaluation of Landslide Susceptibility in Zigui County, Hubei Province Based on Information Quantity Method. South China Geology, 40(1): 152-161. doi: 10.3969/j.issn.2097-0013.2024.01.011

Citation:

LIN Zhen, LU Shu-Qiang, MEI Jun. 2024. Evaluation of Landslide Susceptibility in Zigui County, Hubei Province Based on Information Quantity Method. South China Geology, 40(1): 152-161. doi: 10.3969/j.issn.2097-0013.2024.01.011

Evaluation of Landslide Susceptibility in Zigui County, Hubei Province Based on Information Quantity Method

1. National Field Observation and Research Station of Landslides in Three Gorges Reservoir Area of Yangtze River, Yichang 443002, Hubei, China
2. Three Gorges University School of Civil Engineering and Architecture, Yichang 443002, Hubei, China
3. Institute of Engineering Geology and Mine Geological Survey and Monitoring, Changsha 410000, Hunan, China

More Information

Corresponding author: LU Shu-Qiang

Received Date: 10 April 2023

Revised Date: 10 October 2023

Abstract

Abstract

In this paper, Zigui County, Hubei Province is taken as the research area, and eight evaluation factors such as elevation, water system, road, rock and soil type, aspect, slope, land cover type and annual rainfall are selected to carry out landslide susceptibility evaluation, and the correlation analysis of each evaluation factor is completed using ArcGIS software data analysis tool. The elevation and aspect factors with correlation value of evaluation factors |r| > 0.1 are eliminated, and the information value of each factor is calculated. 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 total 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 distributed 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 disaster prevention and mitigation in Zigui County.
- landslide /
- susceptibility assessment /
- information value model /
- assessment factors /
- Zigui County

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