The Spatial Distributions and Variations of Water Environmental Risk in Yinma River Basin, China

Hui Di, Xingpeng Liu, Jiquan Zhang, Zhijun Tong and Meichen Ji
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Hui Di: School of Environment, Northeast Normal University, Changchun 130024, China
Xingpeng Liu: School of Environment, Northeast Normal University, Changchun 130024, China
Jiquan Zhang: School of Environment, Northeast Normal University, Changchun 130024, China
Zhijun Tong: School of Environment, Northeast Normal University, Changchun 130024, China
Meichen Ji: School of Environment, Northeast Normal University, Changchun 130024, China

IJERPH, 2018, vol. 15, issue 3, 1-14

Abstract: Water environmental risk is the probability of the occurrence of events caused by human activities or the interaction of human activities and natural processes that will damage a water environment. This study proposed a water environmental risk index (WERI) model to assess the water environmental risk in the Yinma River Basin based on hazards, exposure, vulnerability, and regional management ability indicators in a water environment. The data for each indicator were gathered from 2000, 2005, 2010, and 2015 to assess the spatial and temporal variations in water environmental risk using particle swarm optimization and the analytic hierarchy process (PSO-AHP) method. The results showed that the water environmental risk in the Yinma River Basin decreased from 2000 to 2015. The risk level of the water environment was high in Changchun, while the risk levels in Yitong and Yongji were low. The research methods provide information to support future decision making by the risk managers in the Yinma River Basin, which is in a high-risk water environment. Moreover, water environment managers could reduce the risks by adjusting the indicators that affect water environmental risks.

Keywords: Yinma River Basin; PSO-AHP method; water environmental risk; risk assessment (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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