华南弧形砂质海岸形成机制分析  

Formation mechanism analysis of arc-shaped sandy coast in South China

作　　者：戴志军[1] 李春初[2] 王文介[3] 

机构地区：[1]华东师范大学河口海岸国家重点实验室,上海200062 [2]中山大学河口海岸研究所,广东广州510275 [3]中国科学院南海海洋研究所,广东广州510301

出　　处：《台湾海峡》2005年第1期43-48,共6页Journal of Oceanography In Taiwan Strait

基　　金：广东省自然科学基金资助(项目批准号: 011181);广西科学基金项目资助(桂科基448039)

摘　　要：对华南弧形砂质海岸体系的沉积环境、动力及其泥沙供给等条件进行了分析.结果表明:控制华南弧形砂质海岸形成的主要因素包括地域背景、陆架物质供应量、水动力条件、海平面变化等.其中,陆架供沙是弧形砂质海岸形成的主导因子,海面上升致使大量泥沙存在向岸运动的趋势;波浪则是叠加在这种趋势上促使泥沙向岸运动的动力因子.The deposition environment, dynamic action and sediment supply of the arc-shaped sandy coast system in South China were analyzed. The results show that the formation of the arc-shaped sandy coast in South China is mainly controlled by the factors including the region geology, material supply from continent shelf, hydrodynamic condition and sea-level changes, etc. Among them factors, the a key factor is the sediment supply from the continental shelf which controls the coastal formation. Meanwhile, the rising sea-level makes the large quantity of sediment appear a trend to move shorewards. Imposing on this kind of trend, the wave is the motive force to transport the sediment shore wards.

关 键 词：海洋动力学 形成机制 华南地区 弧形砂质海岸 泥沙供给 

分 类 号：P737.14[天文地球—海洋地质]