| 黄河口拦门沙与盐水楔特征及其演变 |
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| 引用本文： | 庞家珍,刘浩泰.黄河口拦门沙与盐水楔特征及其演变[J].海洋湖沼通报,1997(3):1-10. |
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| 作者姓名： | 庞家珍 刘浩泰 |
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| 作者单位： | 黄委会山东水文水资源局，黄河河口海岸科学研究所 |
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| 摘 要： | 黄河口存在一个成型堆积法，称拦门沙。多次实测结果，其长度约３－７ｋｍ同蛋白质水平宽度与河宽相同，横亘于黄河尾闾与海水相连接处。随着河口延伸，拦门沙也向海推移，淤积最多的 部位是前绝急坡区。
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| 关 键 词： | 黄河口 拦门沙 盐水楔 泥沙 |
BASIC CHARACTERISTICS AND EVOLUTION OF THE MOUTH BAR AND THE SALINE WEDGE OF THE YELLOW RIVER ESTUARY |
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| Pang Jiazhen,Liu Haotai,Wang Yong Han Huiqing,Jiang Mingxing.BASIC CHARACTERISTICS AND EVOLUTION OF THE MOUTH BAR AND THE SALINE WEDGE OF THE YELLOW RIVER ESTUARY[J].Transaction of Oceanology and Limnology,1997(3):1-10. |
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| Authors: | Pang Jiazhen Liu Haotai Wang Yong Han Huiqing Jiang Mingxing |
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| Abstract: | At the Yellow River estuary, there exists a shaping accumulation of sealment customarily called the mouth bar. The measured data of many times indicate that the mouth bar is about 3-7km in length and has the same width as the rived,spanning the junction of the Yellow River sink and the sea. With the extension of the river mouth, the bar will shift seawacds. The position with the greatest amount of deposition lies at the front steep slope zone. In the river reach upstream of the bar, the sediment carred by runoff and the suspended load caused by tidal flood current have formed a hyper-concentration zone, which shifts downstream during flood period and upstream during dry perion and where, in the range of 3-7km,a large amount of sediment is deposited. Due to the blocking effect of the bar on the water, the flow is obstructed here and branches out constantly in the upstream.The saline wedge of the estuary assumes a gentle mixed type in larger runoff period and becomes of a strong mixed type in dry period. The shifting range ofthe saline wedge basically tallies with the length of the mouth bar. |
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| Keywords: | Mouth bar and saline wedge Characteristics and evolution Yellow River estuary |
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