| 长江口瑞丰沙串沟成因分析 |
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| 引用本文： | 李玉中,陈沈良.长江口瑞丰沙串沟成因分析[J].华东师范大学学报(自然科学版),2010,2010(6):1-11. |
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| 作者姓名： | 李玉中 陈沈良 |
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| 作者单位： | 1. 上海市海洋规划设计研究院,上海,200232;上海市水务规划设计研究院,上海,200232
2. 华东师范大学,河口海岸学国家重点实验室,上海,200062 |
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| 基金项目： | 海洋公益性行业科研专项经费项目，上海市海洋(水务)局科研基金 |
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| 摘 要： | 根据长江口历年海图,分析南港瑞丰沙串沟的形成机理.瑞丰沙头南淤导致南港上段主流南偏,主流受南岸顶托后,使南港中段主流北偏并冲刷瑞丰沙体下段形成串沟.20世纪90年代末,宝山北水道的发展以及南沙头通道丰富的泥沙来源是瑞丰沙头南淤的主要成因.2002年9月的南港实测水文资料以及水动力模拟结果证实了南港主流的摆动情况.
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| 关 键 词： | 长江口 南港 瑞丰沙 串沟 成因 长江口 南港 瑞丰沙 串沟 成因 |
| 收稿时间： | 2009-11-1 |
| 修稿时间： | 2010-2-1 |
Formation mechanism of Ruifeng Shoal ditch in the Yangtze River Estuary |
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| LI Yu-zhong,CHEN Shen-liang.Formation mechanism of Ruifeng Shoal ditch in the Yangtze River Estuary[J].Journal of East China Normal University(Natural Science),2010,2010(6):1-11. |
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| Authors: | LI Yu-zhong CHEN Shen-liang |
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| Affiliation: | 1. Shanghai Sea Planning and Design Research Institute, Shanghai 200232 , China;
2. Shanghai Water Planning and Design Research Institute, Shanghai 200232 , China;
3. State Key Laboratory of Estuarine &; Coastal Research, East China Normal University, Shanghai 200062 , China |
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| Abstract: | Based on history charts for the Yangtze River Estuary, formation mechanism of the Ruifeng Shoal ditch was analyzed. With the head part of the Shoal siltting southward, the upside mainstream direction turns southward in the South Channel. Bounced by southern bank, the mainstream will turn northward in the middle part of the South Channel and erode the lower part of the Ruifeng Shoal. Then a ditch on Ruifeng Shoal appears. In the end of 1990s, development of Baoshan North Channel and large amount of sediments from the Nanshatou Channel induced the siltation southward in the head part of the Shoal. The deduction was testified by the tidal current survey and the flow modeling. |
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| Keywords: | Yangtze River Estuary South Channel Ruifeng Shoal ditch formation mechanism |
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