基于加权信息量模型的湖南省麻阳县地质灾害危险性评价与区划

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Abstract According to the data of 1:50 000 detailed geological hazard survey in Mayang County, 9 factors including the density of geohazard sites, landform, structure type of rock-soil mass, geological structure, rainfall, vegetation, human engineering activity, threatened population and potential economic losses are selected as the evaluation indexes, and then the analytic hierarchy process (AHP) is used to rank and weight the importance of each index. Finally, the risk assessment and zoning of geohazards are carried out based on the weighted information model. The results show that Mayang County is mainly threatened by low-medium geohazards, among which the low and medium risk areas cover 984.44 km² and 414.08 km² respectively, with very low and high risk areas of 81.11 km² and 86.57 km² respectively.

Key words： geological hazard risk assessment weighted information model AHP Hunan Province

Received: 16 December 2019

PACS:

P694

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	Articles by authors
	WANG Guo-wei
	LI Ming-bo
	JIANG Ming-guang
	LUO Guan-zhi
	CHEN Quan-ming
	WANG Di

Cite this article:

WANG Guo-wei,LI Ming-bo,JIANG Ming-guang等. RISK ASSESSMENT AND ZONING OF THE GEOLOGICAL HAZARDS IN MAYANG COUNTY OF HUNAN PROVINCE BASED ON WEIGHTED INFORMATION MODEL[J]. GEOLOGY AND RESOURCES, 2020, 29(3): 266-272.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/ OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2020/V29/I3/266

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