摘要
在全球气候变化和强人类活动影响下,长江流域水沙情势、河湖演变等正发生持续而深刻的变化,会对流域水旱灾害防治、水资源利用、水环境保护和水生态安全产生深远的影响。简要概述了长江流域河湖水系现状分布的基本特征,分析了人类活动及气候变化双重影响下长江源区、干支流及通江湖泊的水沙输移变化特点,阐述了江源地区河湖演变、上游典型水库淤积、中下游河道演变及通江湖泊冲淤调整的响应特征。围绕河湖生态流量保障、水质保护与改善、水生态系统保护及河湖地貌形态保护与修复4个方面,梳理总结了近年来长江流域在江河湖库保护与治理方面的研究进展和取得的成效。针对当前研究现状与存在问题,提出了未来研究工作应关注的重点方向和内容,可为长江流域河湖保护与治理研究工作提供参考。
Under the influence of global climate change and strong human activities,the water and sediment situation,river and lake evolution in the Yangtze River Basin are undergoing sustained and profound changes,which will also have a great impact on the prevention and control of flood and drought disasters,water resource utilization,water environment protection,and water ecological security.In this paper,the current distribution characteristics of river-lake systems in the Yangtze River Basin were briefly summarized,and the characteristics of water and sediment transport in the source area of the Yangtze River,trunk and its tributaries,and the connected large lakes under the dual impact of human activities and climate change were analyzed.Afterwards,the response characteristics of river-lake evolution in the source area of the Yangtze River,typical reservoir siltation in the upper reaches,channel fluvial process in the middle and lower reaches,and scouring and silting adjustment of the riparian lakes were systematically elaborated.Finally,the research progress and achievements in the protection and management of rivers,lakes,and reservoirs in the Yangtze River Basin in recent years were also summarized,focusing on the following four aspects:river-lake ecological flow guarantee,water quality protection and improvement,water ecosystem protection,and protection and restoration of river-lake geomorphology.In response to the current research status and existing problems,key directions and contents that should be paid attention to in future research work were proposed.We hoped that this paper could provide reference for research on the protection and governance of rivers and lakes in the Yangtze River Basin.
作者
姚仕明
王洪杨
刘玉娇
胡呈维
章运超
黎礼刚
YAO Shiming;WANG Hongyang;LIU Yujiao;HU Chengwei;ZHANG Yunchao;LI Ligang(Changjiang River Scientific Research Institute,Changjiang Water Resources Commission,Wuhan 430010;Key Laboratory of River and Lake Regulation and Flood Control in the Middle and Lower Reaches of the Changjiang River of Ministry of Water Resources,Changjiang River Scientific Research Institute,Wuhan 430010)
出处
《中国防汛抗旱》
2023年第9期1-13,共13页
China Flood & Drought Management
基金
国家自然科学基金长江水科学研究联合基金重点支持项目(U2240224)
长江中下游河湖保护与治理研究创新团队项目(CKSF2021530/HL)。
关键词
长江流域
水沙输移
河湖演变
保护与修复
Yangtze River Basin
water and sediment transport
river and lake evolution
protection and rehabilitation
