基于斜坡单元下的AHP-信息量法在地质灾害易发性评价中的应用

doi:10.13686/j.cnki.dzyzy.2022.06.014

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Abstract The accuracy of conventional susceptibility evaluation models cannot meet the actual needs in gully areas with diverse and complex disaster-causing factors despite various geological hazard risk assessment methods based on ArcGIS. The analysis of geohazard susceptibility based on slope element can fully reflect the combination of controlling and inducing factors, while the information method based on analytic hierarchy process(AHP) can not only form orderly groups and layers of disaster-inducing factors in terms of dominant relation, but also combine statistical analysis and evaluation with quantitative model, therefore the evaluation of slope body is more effective and more applicable. In this study, taking the disaster susceptibility evaluation zoning in Lueyang County of Shaanxi Province as an example, the combination of both methods above as well as slope type evaluation factor is used for prone area evaluation/division and verification of evaluation accuracy through spatial overlay analysis. The results are consistent with actual situation, which can provide basis for accurate evaluation and disaster prevention and mitigation of geohazards in the area.

Key words： geological hazard slope unit analytic hierarchy process information method prone area division Shaanxi Province

Received: 26 October 2021

PACS:	P642.2
	P208.2

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	Articles by authors
	SUN Yi-xiang
	JIA Jun
	ZHANG Mao-sheng
	WU Wen-ying

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SUN Yi-xiang,JIA Jun,ZHANG Mao-sheng等. APPLICATION OF AHP-INFORMATION METHOD IN GEOLOGICAL HAZARD SUSCEPTIBILITY EVALUATION BASED ON SLOPE UNIT[J]. GEOLOGY AND RESOURCES, 2022, 31(6): 811-820,832.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2022.06.014 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2022/V31/I6/811

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