Study on risk assessment of water environment safety in the Yellow river basin of Shanxi province

doi:10.14088/j.cnki.issn0439-8114.2021.12.007

Abstract

Abstract: Based on the disaster risk theory and the concept of water environment security, the risk situation of water environment security in the Yellow river basin of Shanxi province was evaluated by AHP. The results showed that the water environment safety risk levels of the nine prefectural-level cities along the Yellow river were divided into five levels：Extremely high, high, medium, low and extremely low, Jincheng city and Changzhi city were classified as very high and high risk, while Shuozhou city was classified as medium risk, mainly due to deterioration of water quality. Xinzhou city and Shuozhou city were classified as very high and high risk, respectively, in the exposure attribute of hazard-bearing factors, Jinzhong city and Linfen city were in the middle, mainly due to reduced water supply and increased population density; Yuncheng city was at the very high level of vulnerability, while Jincheng city and Linfen city were at the high level of vulnerability, among the medium vulnerable were the cities of Lyuliang city and Shuozhou city, mainly due to reduced precipitation and insufficient water resources per capita. Finally, through the comprehensive analysis, it was found that the Jincheng's overall risk was the highest, and the relevant departments needed to focus on.

Key words: Yellow river basin, water environment safety, risk assessment

CLC Number:

X824

ZHOU Xuan, HOU Xiang-ying, GUO Pi-bin. Study on risk assessment of water environment safety in the Yellow river basin of Shanxi province[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(12): 35-40.

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