基于证据权法的湖北省兴山县滑坡灾害易发性评价

doi:10.13686/j.cnki.dzyzy.2023.03.012

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Abstract Taking Xingshan County of Hubei Province in the Three Gorges reservoir region as an example, the paper comprehensively analyzes the historical landslide data and inducing factors, and evaluates the landslide susceptibility based on the weights-of-evidence method. First, ArcGIS is used to extract the evaluation factor layers including elevation, slope gradient, aspect, curvature, fault, engineering geological rock group, water system and vegetation index, and divide the evidence layer according to the frequency ratio of each evaluation factor. Secondly, the weights-of-evidence method is adopted to calculate the weight and posterior probability of each evidence layer. Then the posterior probability of each evidence layer is superimposed to generate the landslide susceptibility zoning map. Finally, the study area is divided with the quantile regression method into extremely high, high, medium and low risk areas in terms of landslide susceptibility degree. The evaluation accuracy of 86.1% for the method verified by receiver operating characteristic curve indicates that the evaluation effect is good, which can provide technical basis for risk control of local geological disasters.

Key words： GIS landslide susceptibility evaluation weights-of-evidence geological hazard Hubei Province

Received: 25 March 2022

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P642.2

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	Articles by authors
	SONG Yuan
	JIANG Nan
	ZHANG En-bo
	JIANG Hong-bin

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SONG Yuan,JIANG Nan,ZHANG En-bo等. SUSCEPTIBILITY EVALUATION OF LANDSLIDE HAZARD IN XINGSHAN COUNTY OF HUBEI PROVINCE BASED ON WEIGHTS-OF-EVIDENCE METHOD[J]. GEOLOGY AND RESOURCES, 2023, 32(3): 352-359,289.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2023.03.012 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2023/V32/I3/352

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