长江流域防洪规划修编关键问题探讨

Discussion on key issues of flood control planning revision in Yangtze River basin

长江是中华民族的母亲河,是中华民族发展的重要支撑。进入21世纪以来,随着流域经济社会高速发展,流域蓄泄关系和防洪形势发生了新变化,加之全球气候变化背景下极端天气频发,给流域防洪带来了新挑战,治水思路和防灾减灾救灾理念发生深刻变化,迫切需要优化调整防洪目标和总体布局,科学制定防洪规划方案,擘画安澜长江新蓝图。针对新变化、新挑战和新要求,研究提出了新阶段长江防洪新方略、新目标和新举措,并重点探讨了城陵矶(莲花塘)站防洪控制水位调整、蓄滞洪区布局优化以及洲滩民垸防洪治理等重难点问题,为长江流域防洪规划修编提供支撑。

The Yangtze River is the mother river of the Chinese nation and an important support for the development of the Chinese nation.Since the beginning of the 21st century,with the rapid economic and social development of the basin,new changes have taken place in the relationship between drainage and flood control in the basin.In addition the frequent occurrence of extreme weather in the context of global climate change has brought new challenges to flood control in the basin,and profound changes have taken place in the ideas of water control and disaster prevention,reduction and relief.It is urgent to optimize and adjust flood control objectives and overall layout,scientifically formulate flood control planning schemes,and draw a new blueprint for the safety of Yangtze River.Therefore,in view of these new changes,challenges and requirements,this paper studies and puts forward the new flood control strategy,new objectives and new measures for the Yangtze River in the new stage,and focuses on the important and difficult issues such as adjusting the flood control water level at Chenglingji(Lianhuatang)Station,optimizing the layout of flood detention areas and managing flood control of floodplains and polders,so as to provide support for the planning and revision of the Yangtze River basin.