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Multi-objective collaborative decision-making for flood resource utilization in a reservoir

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Abstract

Realizing flood resource utilization through dynamic control of a reservoir flood-limited water level (FLWL) is an effective measure for alleviating the imbalance between the supply and demand of water resources. However, coordinating the generation of benefits and flood control risk is crucial in reservoir dispatch decision-making. Therefore, this study proposes a multi-objective synergistic decision-making method based on the synergistic theory for reservoir flood resource utilization. First, we use a two-period capacity-constrained pre-release method to determine the upper limit of the dynamic control domain of the FLWL from the perspective of flood control safety. Second, different dynamic control schemes for FLWLs are constructed according to the upper limit value. Third, we use the system synergistic theory to evaluate these schemes by analyzing the synergetic contribution degree of each objective and the rate of substitution between them. Finally, the optimal dynamic control scheme for FLWLs is determined based on the principle of maximum system synergy. A case study of Xianghongdian Reservoir shows that this method is feasible and can provide a basis for decision-making regarding the utilization of reservoir flood resources.

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Funding

This work was supported by the National Natural Science Foundation of China (Grant No. 52079037, 52009029); the Fundamental Research Funds for the Central Universities (Grant No. B200202032); the China Postdoctoral Science Foundation (Grant No. 2020T130169).

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by XW, LH, and QW. The first draft of the manuscript was written by YX, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Xinyu Wan.

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Wan, X., Xue, Y., Hua, L. et al. Multi-objective collaborative decision-making for flood resource utilization in a reservoir. Stoch Environ Res Risk Assess 37, 4629–4640 (2023). https://doi.org/10.1007/s00477-023-02530-0

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  • DOI: https://doi.org/10.1007/s00477-023-02530-0

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