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廉州湾南流江水下三角洲大浅滩及潮流深槽形成原因分析
引用本文:陈波,邱绍芳,刘敬合,梁文. 廉州湾南流江水下三角洲大浅滩及潮流深槽形成原因分析[J]. 广西科学院学报, 2007, 23(2): 102-105,109
作者姓名:陈波  邱绍芳  刘敬合  梁文
作者单位:1. 广西科学院,广西南宁,530022
2. 广西红树林研究中心,广西北海,536000
摘    要:根据前人的研究资料和作者1996年在承担"南流江三角洲现代演变对北海深港洄淤影响"项目进行研究时的钻孔资料以及水文观测资料,分析廉州湾南流江水下三角洲大浅滩和潮流深槽的物质组成、泥沙来源、地貌组合、沉积物特征,以及三角洲大浅滩和潮流深槽的形成原因.三角洲大浅滩主要是南流江径流输沙和长期堆积外推形成的,潮流深槽的形成则与水动力条件和地形、地貌条件密切相关联.南流江水下三角洲经历相当长的时间演变后,三角洲大浅滩及潮流深槽这两种主要地貌类型的形状变化已经很稳定.

关 键 词:浅滩  深槽  成因分析  潮流
文章编号:1002-7378(2007)02-0102-04
收稿时间:2006-01-11
修稿时间:2006-01-112007-01-30

Analysis on Formation of Underwater Delta Shoal and Tidal Groove of Lianzhou Gulf Nanliujiang River
CHEN Bo,QIU Shao-fang,LIU Jing-he and LIANG Wen. Analysis on Formation of Underwater Delta Shoal and Tidal Groove of Lianzhou Gulf Nanliujiang River[J]. Journal of Guangxi Academy of Sciences, 2007, 23(2): 102-105,109
Authors:CHEN Bo  QIU Shao-fang  LIU Jing-he  LIANG Wen
Affiliation:1. Guangxi Academy of Sciences, Nanning, Guangxi, 530022, China; 2. Guangxi Mangrove Research Center, Beihai, Guangxi, 536000, China
Abstract:In light of relervant data along with drilling and hydrological data obtained by the author when undertaking the program. The Influence of Modern Evolution of Nanliujiang River Delta on Whirlpool Silt in Beihai Harbour, the article analyzes underwater delta shoal and tidal groove of Nanliujiang River in terms of material composition, sand sources, geomorphological combination, the features of sediments along with the formation of underwater delta of Nanliujiang river. The result shows that the formation of great shoal of underwater delta is attributed to long-term sediments of sands from Nanliujian river-to sea. Furthermore, the formation of tidal current groove has close relationship with the conditions of water dynamics, landshape and geomorphology. These two main styles of geomorphology are very stable after longterm geographic evolution.
Keywords:shoal   groove   formation reasons analysis   tidal
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