| 长江口北支近期水流泥沙输移及含盐度的变化特性 |
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| 引用本文： | 李伯昌,余文畴,陈鹏,徐俊.长江口北支近期水流泥沙输移及含盐度的变化特性[J].水资源保护,2011,27(4):31-34. |
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| 作者姓名： | 李伯昌 余文畴 陈鹏 徐俊 |
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| 作者单位： | 1. 长江水利委员会长江口水文水资源勘测局,上海,200136
2. 长江水利委员会长江科学院,湖北,武汉,430010 |
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| 摘 要： | 为了保障长江口北支的航运功能,满足沿江两岸引排水需求,对20世纪70年代以来长江口水文观测资料进行分析.结果表明:近期北支分流比持续减少,涨潮分流比大于落潮;洪、枯季涨落潮分沙比呈减小之势,且均大于相应的分流比.近年来,泥沙倒灌南支现象有所减弱;北支河段受径流影响逐渐减小,主要受潮流作用影响,但随着下段喇叭口逐渐收缩,...
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| 关 键 词： | 潮汐 潮流 分流比 分沙比 含盐度 北支 长江口 |
| 修稿时间： | 2011/8/4 0:00:00 |
Variation characteristics of sediment transport and salinity in north branch channel of Yangtze River estuary in recent years |
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| LI Bo-chang,YU Wen-chou,Chen Peng,Xu Jun.Variation characteristics of sediment transport and salinity in north branch channel of Yangtze River estuary in recent years[J].Water Resources Protection,2011,27(4):31-34. |
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| Authors: | LI Bo-chang YU Wen-chou Chen Peng Xu Jun |
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| Affiliation: | LI Bo-chang1,YU Wen-chou2,Chen Peng1,Xu Jun1(1.Changjiang River Estuary Investigation Bureau of Hydrology and Water Resources,Changjiang Water Resources Commission,Shanghai 200136,China,2.Changjiang River Scientific Research Institute,Wuhan 430010,China) |
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| Abstract: | In order to ensure the navigation functions of the north branch channel of the Yangtze River estuary and to meet the demand of water diversion and drainage in the region along the Yangtze River,the observed hydrology data of the Yangtze River Estuary since the 1970s, was analyzed.The results show that the flow diversion ratio of the north branch channel of the Yangtze River has been decreased continually in recent years,and its value at flood tide is greater than that at ebb tide.The sediment diversion rati... |
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| Keywords: | tide tidal current flow diversion ratio sediment diversion ratio salinity north branch channel Yangtze River estuary |
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