| 长江口及其邻近海域表层沉积物分布特征 |
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| 引用本文： | 陈沈良,严肃庄,李玉中.长江口及其邻近海域表层沉积物分布特征[J].长江流域资源与环境,2009,18(2):152. |
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| 作者姓名： | 陈沈良 严肃庄 李玉中 |
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| 作者单位： | 1.华东师范大学河口海岸学国家重点实验室, 上海 200062； 2.上海市水务规划设计研究院, 上海 200232 |
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| 基金项目： | 海洋公益性行业科研专项经费项目，国家重点实验室科研业务项目 |
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| 摘 要： | 根据长江口和杭州湾北部沉积物粒度分析数据，研究表层沉积物类型、分布以及分区特征。结果表明：沉积物的分布特征受水动力条件、地貌类型以及泥沙来源等因素的综合影响，长江口表层沉积物在纵向分布上，自西向东粒径从粗到细、分选程度从好至差，在横向上自北港－北槽－南槽，沉积物粒度逐渐变细；水流动力作用强的河槽和波浪作用强的口门浅滩沉积物粒度较粗，水动力较弱的河口边滩及口外海滨区沉积物则较细。根据沉积物分布特征可将长江口及其邻近海域分为河口分汊河段沉积区、河口拦门沙沉积区、口外海滨沉积区和杭州湾北部沉积区等4个沉积区。
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| 关 键 词： | 沉积物 粒度特征 沉积分区 长江口 杭州湾 |
CHARACTERISTICS OF SURFACE SEDIMENT DISTRIBUTION IN THE YANGTZE ESTUARY AND ITS ADJACENT WATERS |
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| CHEN Shen-liang,YAN Su-zhuang,LI Yu-zhong.CHARACTERISTICS OF SURFACE SEDIMENT DISTRIBUTION IN THE YANGTZE ESTUARY AND ITS ADJACENT WATERS[J].Resources and Environment in the Yangtza Basin,2009,18(2):152. |
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| Authors: | CHEN Shen-liang YAN Su-zhuang LI Yu-zhong |
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| Institution: | 1.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062,China|2. Shanghai Water Planning and Design Research Institute, Shanghai 200232,China |
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| Abstract: | The characteristics of surface sediment types,distribution and deposition district in the Yangtze River Estuary and the north of Hangzhou Bay are investigated on the based of sediment particle-size data and corresponding morphology and hydrodynamics.The results suggested that the characteristics of sediment distribution are the result of combined actions among hydrodynamics,morphologic features and sediment sources.The longitudinal(from west to east) distribution of surface sediments of the Yangtze River Es... |
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| Keywords: | sediment size characteristics deposition district Yangtze River Estuary Hangzhou Bay |
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