摘要
本文着重讨论了岚山港港区地质、地貌特征及海流与泥沙运动的关系。我们认为,港区物质来源主要取决于北边河流入海输沙,入海泥沙沿着涨潮流由此向南运移,随落潮流自西南往东北运动。由于新建引堤的阻挡,拦截了泥沙的流量,港区泥沙来源减少。此种情况与北边河流入海输沙量的锐减也有一定关系。因此,人工突堤的建筑,改变了海况与泥沙运动的规律,并使港池泥沙淤积基本处干均衡状态,有利于护港和码头建设。
This paper stresses a discussion on geology, geomorphology and the relation between sea current and sediment movement in Lanshan Harbour Region.We consider that the material source in the harbour region mainly depends on the sediments transported into sea by river in the north, the sediments moving from N to S following flood-current, then from SW to NE following ebb-current. Owing to the obstruction of the newly built dam, the flow of silt was intercepted, thus the materials which flow to the harbour region are decreased largely. On the other hand, the sharp decrease of sands transported into sea from the river in the north is another cause.
So, we believe that the building of the dam changes the state of sea and the law of sand movement, and causes the sediments in the harbour region to be in isostatic state which benifits the protection and construction of port.
出处
《黄渤海海洋》
CSCD
1990年第4期29-34,共6页
Journal of Oceanography of Huanghai & Bohai Seas
