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Research on Evaluation Method for Urban Water Circulation Health and Related Applications: A Case Study of Zhengzhou City, Henan Province

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  • Mengdie Zhao

    (College of Water Resources, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
    Yellow River Survey Planning and Design Institute Co., Ltd., Zhengzhou 450046, China)

  • Jinhang Li

    (College of Water Resources, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

  • Jinliang Zhang

    (Yellow River Survey Planning and Design Institute Co., Ltd., Zhengzhou 450046, China)

  • Yuping Han

    (College of Water Resources, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

  • Runxiang Cao

    (College of Water Resources, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

Abstract

The acceleration of urbanization and climate change has increasingly impacted the health level of urban dual water cycles. In order to accurately evaluate the health status of urban water cycles, the evaluation system covers four standard layers of water ecology, water abundance, water quality and water use, including 19 basic indicators such as water storage change and annual average precipitation. Three-scale AHP and EFAST algorithms are adopted to set the criterion and index layer weights. Water-cycle health assessment models are based on the improved TOPSIS model. The model evaluated Zhengzhou’s water cycle health from 2011 to 2021. We compared the TOPSIS model and FCE method to ensure the scientific objectivity of the evaluation results. The evaluation results indicated that the water cycle in Zhengzhou City improved annually, and the relative progress in 2020 was 0.567 in a sub-health state. The eco-environmental water demand, green coverage rate of the built district, water resources amount, and industry’s water consumption per unit of value added (CNY 10,000) were the major obstacles. These four factors have preponderantly influenced Zhengzhou City’s water cycle health. Our research results provide scientific reference for Zhengzhou to achieve a healthy urban water cycle and regional sustainable development.

Suggested Citation

  • Mengdie Zhao & Jinhang Li & Jinliang Zhang & Yuping Han & Runxiang Cao, 2022. "Research on Evaluation Method for Urban Water Circulation Health and Related Applications: A Case Study of Zhengzhou City, Henan Province," IJERPH, MDPI, vol. 19(17), pages 1-15, August.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:17:p:10552-:d:896452
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    References listed on IDEAS

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    1. Chu, Junying & Wang, Jianhua & Wang, Can, 2015. "A structure–efficiency based performance evaluation of the urban water cycle in northern China and its policy implications," Resources, Conservation & Recycling, Elsevier, vol. 104(PA), pages 1-11.
    2. Yan Feng & Yi Fanghui & Chen Li, 2019. "Improved Entropy Weighting Model in Water Quality Evaluation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 33(6), pages 2049-2056, April.
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