跨流域调水节理SWAT模型与NSGA-II相结合后水库群调度多目标优化

IF 5.9 1区地球科学 Q1 ENGINEERING, CIVIL

Journal of Hydrology Pub Date : 2025-05-03 DOI:10.1016/j.jhydrol.2025.133431

Ruimin Liu , Yue Liu , Lijun Jiao , Linfang Wang

{"title":"跨流域调水节理SWAT模型与NSGA-II相结合后水库群调度多目标优化","authors":"Ruimin Liu , Yue Liu , Lijun Jiao , Linfang Wang","doi":"10.1016/j.jhydrol.2025.133431","DOIUrl":null,"url":null,"abstract":"<div><div>Inter-basin water transfer (IBWT) projects were widely proposed to solve regional water resource shortages. However, the impact of reservoir group management measures after IBWT on the economy and ecology is often overlooked. In this study, the cyclic coupling of the soil and water assessment tool (SWAT) and the second generation of the Non-dominated Sorting Genetic Algorithm (NSGA-II) was realized. Performance analysis of NSGA-II showed that the best-fit parameters of population size, generations, mutation, and crossover were 100, 50, 0.1, and 0.8, respectively. Based on the coupling model, the optimization of three objectives about economy, resources, and environment and the relationship between discharge flow and objectives were analyzed in the Fenhe River Basin. Optimization results showed IBWT project made power generation increase by 88.8%, water shortage decrease by 19%, and water quality improve by 15.43%. There was a non-linear competitive relationship between F2, representing the benefits of water supply, and F1, representing the benefits of hydropower generation, as well as between F2 and F3, representing the benefits of water quality. In this non-linear competitive relationship, the benefits of F1 and F3 brought by unit F2 were reduced to 1/57 and 1/75 of the original respectively. The points that marginal cost of F2 equals marginal benefits of F1 and F3 were served as reference points to balance the benefit among objectives and calculate the optimal total benefit point (1378, 36.49, 36.63) of the three objectives. The driving effects of different objectives on the discharge flow curve were different through the analysis of reservoirs discharge typical plans. The reservoir discharge plan for the best benefit of F3 (F3B) had maximum annual average discharge flow and proportion of discharge flow during flood season to dilute pollutants in the river channel. Meanwhile, the plan for the best benefit of F2 (F2B) had minimum discharge flow to reduce the water resources overflow. Besides, there is a complementary situation in time of different reservoirs discharge flow. These results could provide effective guidance for water resources management after implementing IBWT projects.</div></div>","PeriodicalId":362,"journal":{"name":"Journal of Hydrology","volume":"660 ","pages":"Article 133431"},"PeriodicalIF":5.9000,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Multi-objective optimization of reservoir group operation after Inter‑basin water transfer jointing SWAT model and NSGA-II\",\"authors\":\"Ruimin Liu , Yue Liu , Lijun Jiao , Linfang Wang\",\"doi\":\"10.1016/j.jhydrol.2025.133431\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Inter-basin water transfer (IBWT) projects were widely proposed to solve regional water resource shortages. However, the impact of reservoir group management measures after IBWT on the economy and ecology is often overlooked. In this study, the cyclic coupling of the soil and water assessment tool (SWAT) and the second generation of the Non-dominated Sorting Genetic Algorithm (NSGA-II) was realized. Performance analysis of NSGA-II showed that the best-fit parameters of population size, generations, mutation, and crossover were 100, 50, 0.1, and 0.8, respectively. Based on the coupling model, the optimization of three objectives about economy, resources, and environment and the relationship between discharge flow and objectives were analyzed in the Fenhe River Basin. Optimization results showed IBWT project made power generation increase by 88.8%, water shortage decrease by 19%, and water quality improve by 15.43%. There was a non-linear competitive relationship between F2, representing the benefits of water supply, and F1, representing the benefits of hydropower generation, as well as between F2 and F3, representing the benefits of water quality. In this non-linear competitive relationship, the benefits of F1 and F3 brought by unit F2 were reduced to 1/57 and 1/75 of the original respectively. The points that marginal cost of F2 equals marginal benefits of F1 and F3 were served as reference points to balance the benefit among objectives and calculate the optimal total benefit point (1378, 36.49, 36.63) of the three objectives. The driving effects of different objectives on the discharge flow curve were different through the analysis of reservoirs discharge typical plans. The reservoir discharge plan for the best benefit of F3 (F3B) had maximum annual average discharge flow and proportion of discharge flow during flood season to dilute pollutants in the river channel. Meanwhile, the plan for the best benefit of F2 (F2B) had minimum discharge flow to reduce the water resources overflow. Besides, there is a complementary situation in time of different reservoirs discharge flow. These results could provide effective guidance for water resources management after implementing IBWT projects.</div></div>\",\"PeriodicalId\":362,\"journal\":{\"name\":\"Journal of Hydrology\",\"volume\":\"660 \",\"pages\":\"Article 133431\"},\"PeriodicalIF\":5.9000,\"publicationDate\":\"2025-05-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Hydrology\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022169425007693\",\"RegionNum\":1,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Hydrology","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022169425007693","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}

引用次数: 0

摘要

跨流域调水工程被广泛提出以解决区域水资源短缺问题。然而，水运后水库群管理措施对经济和生态的影响往往被忽视。本研究实现了水土评价工具（SWAT）与第二代非支配排序遗传算法（NSGA-II）的循环耦合。NSGA-II的性能分析表明，种群大小、世代数、突变和交叉的最佳拟合参数分别为100、50、0.1和0.8。基于耦合模型，分析了汾河流域经济、资源、环境三个目标的优化以及流量与目标之间的关系。优化结果表明，IBWT项目发电量提高了88.8%，缺水率降低了19%，水质改善了15.43%。代表供水效益的F2与代表水力发电效益的F1之间以及代表水质效益的F2与F3之间存在非线性竞争关系。在这种非线性竞争关系中，单位F2带来的F1和F3的收益分别减少到原来的1/57和1/75。以F2的边际成本等于F1和F3的边际效益的点为参考点，平衡目标间的效益，计算出三个目标的最优总效益点（1378,36.49,36.63）。通过对水库典型泄流方案的分析，发现不同目标对泄流曲线的驱动作用不同。F3 （F3B）效益最佳的水库放水方案，其年平均放水流量和汛期放水流量所占比例最大，可稀释河道中的污染物。同时，F2 （F2B）效益最佳的方案具有最小的流量，以减少水资源溢出。此外，不同水库的流量在时间上存在互补的情况。研究结果可为实施IBWT项目后的水资源管理提供有效指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Multi-objective optimization of reservoir group operation after Inter‑basin water transfer jointing SWAT model and NSGA-II

查看原文本刊更多论文

Multi-objective optimization of reservoir group operation after Inter‑basin water transfer jointing SWAT model and NSGA-II

Inter-basin water transfer (IBWT) projects were widely proposed to solve regional water resource shortages. However, the impact of reservoir group management measures after IBWT on the economy and ecology is often overlooked. In this study, the cyclic coupling of the soil and water assessment tool (SWAT) and the second generation of the Non-dominated Sorting Genetic Algorithm (NSGA-II) was realized. Performance analysis of NSGA-II showed that the best-fit parameters of population size, generations, mutation, and crossover were 100, 50, 0.1, and 0.8, respectively. Based on the coupling model, the optimization of three objectives about economy, resources, and environment and the relationship between discharge flow and objectives were analyzed in the Fenhe River Basin. Optimization results showed IBWT project made power generation increase by 88.8%, water shortage decrease by 19%, and water quality improve by 15.43%. There was a non-linear competitive relationship between F2, representing the benefits of water supply, and F1, representing the benefits of hydropower generation, as well as between F2 and F3, representing the benefits of water quality. In this non-linear competitive relationship, the benefits of F1 and F3 brought by unit F2 were reduced to 1/57 and 1/75 of the original respectively. The points that marginal cost of F2 equals marginal benefits of F1 and F3 were served as reference points to balance the benefit among objectives and calculate the optimal total benefit point (1378, 36.49, 36.63) of the three objectives. The driving effects of different objectives on the discharge flow curve were different through the analysis of reservoirs discharge typical plans. The reservoir discharge plan for the best benefit of F3 (F3B) had maximum annual average discharge flow and proportion of discharge flow during flood season to dilute pollutants in the river channel. Meanwhile, the plan for the best benefit of F2 (F2B) had minimum discharge flow to reduce the water resources overflow. Besides, there is a complementary situation in time of different reservoirs discharge flow. These results could provide effective guidance for water resources management after implementing IBWT projects.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of Hydrology 地学-地球科学综合

CiteScore

11.00

自引率

12.50%

发文量

1309

审稿时长

7.5 months

期刊介绍： The Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology and hydrogeology. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, hydraulics, agrohydrology, geomorphology, soil science, instrumentation and remote sensing, civil and environmental engineering are included. Social science perspectives on hydrological problems such as resource and ecological economics, environmental sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site.