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Study on Watershed Ecological Water Replenishment Coupling Hydrodynamic and Reservoir Operation

Author

Listed:
  • Tao Bai

    (Xi’an University of Technology)

  • Yu Kang

    (Xi’an University of Technology)

  • Dong Liu

    (Xi’an University of Technology)

  • Shaojie Gou

    (Pearl River Water Resources Research Institute)

Abstract

In order to develop an ecological operation strategy that combines cross-basin water transfer and reservoir ecological management, this study investigates the corresponding theoretical framework and methodological approach. A novel optimization model that couples hydrodynamic with reservoir dispatch for ecological water replenishment is proposed. Using the Yongding River ecological operation project as a case study, various scenarios of Yellow River water diversion are analyzed to assess the satisfaction of ecological water demands and associated costs in the downstream channel of the Guanting Reservoir. The results show that: 1) For ideal ecological flow process, suitable ecological flow process, and minimum ecological flow process in the downstream river channel of Guanting Reservoir, the minimum values are 8.67 m3/s, 4.46 m3/s, and 1.66 m3/s respectively, and the maximum values are 49.82 m3/s, 33.69 m3/s, and 8.37 m3/s respectively. 2) The coupling model is applied to the ecological water replenishment project of Yongding River and achieves satisfying effects. The ecological guarantee degree can be increased by 48.8% when the cost of water replenishment is doubled and the Yellow River water is used for ecological water replenishment. 3) According to the water storage situation of Guanting Reservoir, the satisfaction of ecological water demand and the cost of water replenishment are comprehensively considered. In order to ensure the water supply of the Beijing section of Yongding River, two ecological water supply schemes are recommended, and the ecological guarantee degree of the two schemes can reach more than 90%. The research results provide new ideas and methods for the development of ecological water replenishment programs for Yongding River in the future, and also have important reference value for the development of ecological water replenishment programs for other water-scarce rivers.

Suggested Citation

  • Tao Bai & Yu Kang & Dong Liu & Shaojie Gou, 2024. "Study on Watershed Ecological Water Replenishment Coupling Hydrodynamic and Reservoir Operation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 38(8), pages 3071-3092, June.
    • Handle: RePEc:spr:waterr:v:38:y:2024:i:8:d:10.1007_s11269-024-03805-z
    DOI: 10.1007/s11269-024-03805-z
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    References listed on IDEAS

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    1. Rong Gan & Changzheng Chen & Jie Tao & Yongqiang Shi, 2021. "Hydrological Process Simulation of Sluice-Controlled Rivers in the Plains Area of China Based on an Improved SWAT Model," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(6), pages 1817-1835, April.
    2. Yu Fan & Haorui Chen & Zhanyi Gao & Benyan Fang & Xiangkun Liu, 2023. "A Model Coupling Water Resource Allocation and Canal Optimization for Water Distribution," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(3), pages 1341-1365, February.
    3. Mehri Raei & Javad Hossienzad & Mohammad Ali Ghorbani, 2023. "An Uncertainty-Based Random Boundary Interval Multi-Stage Stochastic Programming for Water Resources Planning," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(12), pages 4571-4587, September.
    4. Tao Bai & Lei Li & Peng-fei Mu & Bao-zhu Pan & Jin Liu, 2023. "Impact of Climate Change on Water Transfer Scale of Inter-basin Water Diversion Project," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 37(6), pages 2505-2525, May.
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    Cited by:

    1. Kunhui Hong & Aixing Ma & Wei Zhang & Mingxiong Cao, 2025. "Multi-Objective Optimization of Two Cascade Reservoirs on the Upper Yellow River During Different Intra-Annual Periods," Sustainability, MDPI, vol. 17(5), pages 1-17, March.

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