Studies on safeguarding ecological flow regulation for river basins under the framework of water networks——taking the Yongding River Basin as an example
Jiang Yunzhong
Cai Siyu
Wang Chao
Abstract：The Ministry of Water Resources initiated the Mother River Recovery Action since 2022.Targeting at securing ecological flow and water yield,the management mode of ecological flow has transformed into to a new mode with diversify goals of ecological protection for water quantity,flow and process.Diversification of ecological water demand raises higher requirements for the total amount of ecological water use and regulation of storage capacity of water structures in a river basin.In an effort to safeguard flood control and water supply security in the Yongding River Basin and maximize the role of cross-basin water transfer to supplement ecological flow,a framework of safeguarding ecological flow regulation under the framework of water networks was created,including defining goals of safeguarding ecological flow,formulating ecological flow regulation plan and implementation plan with consideration of cross-basin water transfer.Taking Yongding River as an example,the analysis focuses on practices and effectiveness of safeguarding ecological flow regulation.A decision-making method for ecological regulation is proposed that runs through the whole process of"scheduling,optimization,optimized selection",and a multi-purpose ecological flow optimization regulation model with aims of optimizing ecological benefits,maximizing efficiency and minimizing cost of water replenishment is developed,which may provide insight for safeguarding ecological flow regulation in water scarce river basins in the north of China.
Keywords：recovery of eco-environment of rivers and lakesnational water networkcross-basin water transferecological regulationecological flow
Publication Date：2024-09-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 61-67 )