Rethinking ecological management measures for Beijing's river channels after the"23·7"catastrophic flood in the Haihe River basin
Lin Chen
Jiang Qi
Gao Ning
Wang Meng
Liu Xiangyang
Gao Lubo
Wang Chunyan
Abstract：Taking the Yongding River's urban section in Beijing as an example,this paper discusses the four phases of river management in Beijing:the flood control and drainage phase of the 1980s,the engineering river management phase of the 1990s,the ecological management V1.0 phase from the early 21st century to 2023,and the ecological management V2.0 phase since the"23·7"catastrophic flood in the Haihe River basin in 2023.It focuses on analyzing the outcomes of the ecological management V1.0 phase and the issues exposed by the"23·7"catastrophic flood.The study proposes an ecological management V2.0 model,emphasizing the enhancement of management standards in terms of flood control safety and ecological resilience,improving the adaptability of green spaces,and enhancing the flood control capabilities of road and facility systems.By analyzing the impact of floods on river morphology,embankments,and ecological landscapes,the study identifies the vulnerabilities of river ecosystems and the shortcomings of current management strategies.The findings indicate that although the ecological management V1.0 phase achieved certain successes,it remains inadequate in the face of extreme weather events.There is a need to further improve the flood control system,enhance resilient design,optimize water systems,strengthen spatial control and flood adaptability of green systems,and improve flood control measures for road and facility systems.This aims to provide scientific references for constructing safer,more ecological,and sustainable urban river ecosystems.
Keywords："23·7"catastrophic flood in the Haihe River basinurban section of the Yongding Riverriver ecological managementwater bodiesgreeningroadsfacilitiesflood control
Publication Date：2025-03-11
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)