Multilayer entropy-weighted TOPSIS method and its decision-making in ecological operation during the subsidence period of the Three Gorges Reservoir
Abstract Coordinating the downstream ecological demand and the power generation demand of hydropower stations is an important task in the operation of reservoirs, and how to evaluate the ecological satisfaction of the scheduling process is a difficult problem that needs to be solved urgently. A mult...
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| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-87106-4 |
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| author | Ai Xueshan Yu Yangxin Liang Zhiming Shi Xuanyu Cao Rui Zhang Xiaoke |
| author_facet | Ai Xueshan Yu Yangxin Liang Zhiming Shi Xuanyu Cao Rui Zhang Xiaoke |
| author_sort | Ai Xueshan |
| collection | DOAJ |
| description | Abstract Coordinating the downstream ecological demand and the power generation demand of hydropower stations is an important task in the operation of reservoirs, and how to evaluate the ecological satisfaction of the scheduling process is a difficult problem that needs to be solved urgently. A multi-objective optimal reservoir scheduling model was constructed to coordinate the spawning flow demand of " Four Major Chinese Carps"; The model takes the maximum power generation and the maximum membership degree of downstream river ecological water demand as the objective functions, and uses the dynamic programming multi-objective solution algorithm based on penalty factors to solve the problem, and obtains the non-inferior solution set in each scenario. The multilayer entropy-weighted TOPSIS method was used to study the non-inferior solution of the multi-objective scheduling model of the Three Gorges Reservoir, and the satisfactory solution ranking of the river flow rise process, ecological flow-related requirements, and power generation water requirements was obtained under the four schemes including 4d ~ 7d, which improved the reliability of the evaluation results and made up for the shortcomings of the traditional TOPSIS method in terms of hierarchy and weight science. The research results of this paper can provide a reference for decision-making on the ecological management of the spawning period of the " Four Major Chinese Carps" in the Three Gorges Reservoir of the Yangtze River. |
| format | Article |
| id | doaj-art-70cf4961935c4198bd6f7d58d4015f1c |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-70cf4961935c4198bd6f7d58d4015f1c2025-01-26T12:34:33ZengNature PortfolioScientific Reports2045-23222025-01-0115111610.1038/s41598-025-87106-4Multilayer entropy-weighted TOPSIS method and its decision-making in ecological operation during the subsidence period of the Three Gorges ReservoirAi Xueshan0Yu Yangxin1Liang Zhiming2Shi Xuanyu3Cao Rui4Zhang Xiaoke5State Key Laboratory of Water Resources Engineering and Management, Wuhan UniversityState Key Laboratory of Water Resources Engineering and Management, Wuhan UniversityHubei Key Laboratory of Intelligent Yangtze and Hydroelectric Science, China Yangtze Power Co., Ltd.State Key Laboratory of Water Resources Engineering and Management, Wuhan UniversityChina Three Gorges Corporation River Basin Complex Administration CenterState Key Laboratory of Water Resources Engineering and Management, Wuhan UniversityAbstract Coordinating the downstream ecological demand and the power generation demand of hydropower stations is an important task in the operation of reservoirs, and how to evaluate the ecological satisfaction of the scheduling process is a difficult problem that needs to be solved urgently. A multi-objective optimal reservoir scheduling model was constructed to coordinate the spawning flow demand of " Four Major Chinese Carps"; The model takes the maximum power generation and the maximum membership degree of downstream river ecological water demand as the objective functions, and uses the dynamic programming multi-objective solution algorithm based on penalty factors to solve the problem, and obtains the non-inferior solution set in each scenario. The multilayer entropy-weighted TOPSIS method was used to study the non-inferior solution of the multi-objective scheduling model of the Three Gorges Reservoir, and the satisfactory solution ranking of the river flow rise process, ecological flow-related requirements, and power generation water requirements was obtained under the four schemes including 4d ~ 7d, which improved the reliability of the evaluation results and made up for the shortcomings of the traditional TOPSIS method in terms of hierarchy and weight science. The research results of this paper can provide a reference for decision-making on the ecological management of the spawning period of the " Four Major Chinese Carps" in the Three Gorges Reservoir of the Yangtze River.https://doi.org/10.1038/s41598-025-87106-4Ecological operationMulti-objective optimal schedulingNon-inferior solution setMultilayer entropy-weighted TOPSIS methodFour Major Chinese Carps |
| spellingShingle | Ai Xueshan Yu Yangxin Liang Zhiming Shi Xuanyu Cao Rui Zhang Xiaoke Multilayer entropy-weighted TOPSIS method and its decision-making in ecological operation during the subsidence period of the Three Gorges Reservoir Scientific Reports Ecological operation Multi-objective optimal scheduling Non-inferior solution set Multilayer entropy-weighted TOPSIS method Four Major Chinese Carps |
| title | Multilayer entropy-weighted TOPSIS method and its decision-making in ecological operation during the subsidence period of the Three Gorges Reservoir |
| title_full | Multilayer entropy-weighted TOPSIS method and its decision-making in ecological operation during the subsidence period of the Three Gorges Reservoir |
| title_fullStr | Multilayer entropy-weighted TOPSIS method and its decision-making in ecological operation during the subsidence period of the Three Gorges Reservoir |
| title_full_unstemmed | Multilayer entropy-weighted TOPSIS method and its decision-making in ecological operation during the subsidence period of the Three Gorges Reservoir |
| title_short | Multilayer entropy-weighted TOPSIS method and its decision-making in ecological operation during the subsidence period of the Three Gorges Reservoir |
| title_sort | multilayer entropy weighted topsis method and its decision making in ecological operation during the subsidence period of the three gorges reservoir |
| topic | Ecological operation Multi-objective optimal scheduling Non-inferior solution set Multilayer entropy-weighted TOPSIS method Four Major Chinese Carps |
| url | https://doi.org/10.1038/s41598-025-87106-4 |
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