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| 鸭绿江河口地区沉积物特征及悬沙输送 | |
| 引用本文： | 高建华,高抒,董礼先,张经.鸭绿江河口地区沉积物特征及悬沙输送[J].海洋通报,2003,22(5):26-33. |
| 作者姓名： | 高建华 高抒 董礼先 张经 |
| 作者单位： | 1. 南京大学海岸与海岛开发教育部重点实验室,江苏,南京,210093 2. 国家海洋局第二海洋研究所,浙江,杭州,310012 3. 青岛海洋大学化学化工学院,山东,青岛,266003 |
| 基金项目： | 国家杰出青年科学基金（编号 49875612），国家自然科学基金项目（编号 49376278）资助 |
| 摘 要： | 根据鸭绿江河口区4个站位的潮周期测量数据和3个柱状样的粒度数据，对悬沙的输送规律以及口门地区最大浑浊带的形成机制、悬沙输送方向以及物质来源和动力条件进行了分析。计算分析表明，鸭绿江是一条落潮流占优势的河流，平均流作用、斯托克斯漂移效应以及水深与悬沙浓度的潮变化引起的悬沙输送是其河口区最主要的悬沙输送机制。3个柱状样粒度参数自东向西的变化反映了鸭绿江辽口西侧沿岸地区动力条件和沉积环境的变化：沉积物的平均粒径变小，分选变差，并且更正偏，物源的多元化特征逐渐增强。物源和河口区沿岸沉积动力环境的差异以及潮相的周期变化使3个柱状样中的环境敏感粒度组分对应着不同的粒径分布区间。 |
| 关 键 词： | 悬沙输送 粒度参数 最大浑浊带 输运机制 鸭绿江 |
| 文章编号： | 1001-6392(2003)05-0026-08 |
| 修稿时间： | 2003年2月26日 |
Sediment Distribution and Suspended Sediment Transport in Yalu River Estuary |
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| GAO Jianhua,GAO Shu,DONG Lixian,ZHANG Jing.Sediment Distribution and Suspended Sediment Transport in Yalu River Estuary[J].Marine Science Bulletin,2003,22(5):26-33. | |
| Authors: | GAO Jianhua GAO Shu DONG Lixian ZHANG Jing |
| Institution: | GAO Jianhua1,GAO Shu1,DONG Lixian2,ZHANG Jing3 |
| Abstract: | Tidal cycle measurements of tidal currents and suspended sediment concentrations were undertaken at two stations in both 1994 and 1996, together with the short core collection within the Yalu River estuary. Analysis of the data sets obtained shows that the suspended load transport here is dominated by advection, Stokes drift and diffusion induced by tidal variations in water depth and suspended sediment concentration.Grain size analysis of the three short cores indicates that: ( 1 ) Along the shoreline to the west of the estuary, the sediment becomes finer, poorly sorted and positively skewed from the river mouth towards the west; ( 2 ) The material from the river mouth is maily derived from the Yaly River, but the material in the west shows a multi-source nature; And ( 3 ) the environmentally sensitive constituents of the three cores vary, in response to different hydrodynamic and sediment supply patterns. |
| Keywords: | suspended sediment transport grain size parameter advective and dispersive transport Yalu River estuary |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |