基于CF-LR模型的河南省信阳市地质灾害易发性评价

doi:10.13686/j.cnki.dzyzy.2024.01.009

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Abstract Xinyang City of Henan Province, located on the north-south boundary of both geography and climate of China, is prone to geological disasters. The assessment of geohazard susceptibility is of great guiding significance for disaster prevention and reduction. Based on the data analysis, 7 indexes including slope gradient, aspect, terrain curvature, distance to water system, distance to faults, nighttime light index and vegetation index are selected and the CF-LR model is used to assess the geohazard susceptibility in Xinyang City. The results show that the geohazard susceptibility in the area can be divided into four categories:extremely high-risk area(accounting for 11.39% of the total area), high-risk area (19.51%), medium-risk area (14.20%) and low-risk area (54.90%). The results are verified to meet the requirements of rationality and accuracy, indicating that the CF-LR model can objectively and accurately assess the geohazard susceptibility in Xinyang City.

Key words： geohazard susceptibility assessment CF-LR model Henan Province

Received: 27 September 2022

PACS:

P642.2

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	SHEN Yu-song
	ZHANG Chen
	WANG Yi-jie
	ZHANG Di

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SHEN Yu-song,ZHANG Chen,WANG Yi-jie等. GEOHAZARD SUSCEPTIBILITY ASSESSMENT BASED ON CF-LR MODEL FOR XINYANG CITY, HENAN PROVINCE[J]. GEOLOGY AND RESOURCES, 2024, 33(1): 74-81,134.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2024.01.009 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2024/V33/I1/74

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