长江口演变趋势研究与长远整治方向探讨  

Study on evolution trend of Yangtze Estuary and exploration of its long-term regulation

作　　者：王永忠[1] 陈肃利[1] 

机构地区：[1]长江水利委员会设计院,湖北武汉430010

出　　处：《人民长江》2009年第8期21-24,共4页Yangtze River

摘　　要：长江口河道多级分汊,江面宽阔,江中沙洲密布,在径流、潮流、波浪等多种动力因素作用下,河床演变极为复杂。随着河口地区社会经济的快速发展,对长江口的综合整治与开发利用提出了越来越迫切的要求。首先系统分析了长江口的历史发育模式,长江口三级分汊、四口入海总体河势格局的形成,长江口的近期河道演变特征。在此基础上,对长江口的河道演变趋势进行了分析预测。同时根据长江口的自然演变趋势和经济社会发展及生态环境保护等方面的要求,对长江口长远整治方向进行了初步探讨。The Yangtze Estuary is characterized by wide and multiple - stage bifurcated courses with densely distributed sand bars. Under the action of runoff, tide, wave, the river channel process becomes to be so complicated. With the rapid development of social economy in the estuary area, higher requirements for its comprehensive regulation, development and exploitation are proposed. This paper covers a systematic analysis of the estuary＇s historical developing mode, forming of general regime as ＂3 - level branching and 4 - mouth into the sea＂ and characteristics of recent river channel process. On such a basis, an analysis and forecast on its evolution trend of river channel is carried out. At the same time, an initial discussion on the direction of long - term regulation for the Yangtze Estuary is performed according to its natural evolution trend, and the demands of the development of socio - economy and the ecological protection in the area.

关 键 词：河道演变 演变特征 整治 长江口 

分 类 号：TV88[水利工程—水利水电工程]