基于动态综合评价的区域环境风险差异化管理

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Abstract In this study, a new "dynamic comprehensive evaluation model" for regional environmental risk assessment which based on the "vertical-and-horizontal" scatter degree method and the "time ordered weighted averaging operator" method was developed, and the strategy that named "risk assessment-zoning-differentiated management" was proposed for the management of regional environmental risk. In addition, this method was applied for the regional environmental risk assessment and the differentiated management for 18cities in Henan province. The results showed that (1) the maximum values of comprehensive environmental risk were 13.79, 13.46 and 13.28, which were identified in Zhengzhou, Xuchang and Luohe, respectively. In contrast, the minimum values of environmental risk were found in the cities of Xinyang, Nanyang and Sanmenxia, and the values were only 4.15, 4.16 and 5.01, respectively. (2) Using GIS technology and the hierarchical cluster analysis method, the spatial variation of comprehensive risk in 18 cities of Henan province was divided into five regions:high risk zone (Zhengzhou, Xuchang and Luohe), relative high risk zone (Jiaozuo, Puyang and Hebi), medium risk zone (Kaifeng and Anyang), relative low risk zone (Pingdingshan, Shangqiu and Zhoukou) and low risk zone (Luoyang, Sanmenxia and Nanyang) (3) The differentiated management strategies for different cities were proposed base on the difference of environmental risk level and its mainly contribution factors according to the principle of "critical control, priority management for high risk area, and step by step control, strengthen prevention for medium and low risk area". The results indicated that the proposed method of "risk assessment-zoning-differentiated management" can not only evaluate the environmental risk at regional scale but also identify the mainly contribution factors. The differentiated management strategies will better meet the actual needs for the coordinated development of the local economic and the social environment.

Key words： hazard of risk source exposure of receptor resilience of receptor regional environmental risk spatial variability

Received: 01 November 2017

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Corresponding Authors: 李义玲,高级工程师,lyl@hpu.edu.cn E-mail: lyl@hpu.edu.cn

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	YANG Xiao-lin
	GU Ling-shuang
	LI Yi-ling
	DU Jiu-sheng

Cite this article:

YANG Xiao-lin,GU Ling-shuang,LI Yi-ling等. Differentiated management strategies for the regional environmental risk based on dynamic comprehensive assessment[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(6): 2382-2391.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2018/V38/I6/2382

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