Hydrological evolution and multi-source water optimal regulation in the Yongding River basin
Hu Qingfang
Wan Chao
Lei Zhendong
Peng Anbang
Su Xin
Wang Yintang
Abstract：Water resources are crucial for protecting and restoring the ecological environment of the Yongding River,as well as maintaining river health.However,water resources in the Yongding River basin are extremely scarce,with a significant decline in surface water quantity.To effectively ensure ecological water under such adverse conditions,this study systematically analyzed the hydrological evolution characteristics of the basin and calculated the basic ecological water volume for various river sections,along with the potential for multi-source ecological water supplementation.A multi-source optimization regulation model was established,integrating water resource supply,consumption,and discharge processes with the joint operation of water projects.This model proposes both conventional and extreme multi-source ecological water volume operation schemes,along with application methods based on annual precipitation patterns.The research provides critical methods and models for effectively securing the ecological water volume of the Yongding River and enhancing resilience to changing environments.Furthermore,it offers technical references for the ecological protection and comprehensive management of other rivers in North China.
Keywords：changing environmenthydrological evolutionriver ecological water supplementmulti-source water optimal and joint regulationthe Yongding River basin
Publication Date：2024-03-12
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 34-40 )