长江河口潮滩悬浮泥沙输移规律研究进展

Dynamic Process of Transpartation by the Mudflat Suspended Sedimdent in the Yangtze Estuary

通过阅读和研究大量有关文献,对长江口潮滩悬移泥沙的输移规律有了较全面的了解。目前,长江口潮滩、潮沟、以及两者之间的悬浮泥沙输移基本规律的研究已经比较深入,但对于动力过程的探讨仍然局限在少数几个因子,而悬浮泥沙对重金属、氮、磷等营养元素吸附的研究则刚刚开始。由于在潮滩上获取实测资料的难度较大,使潮沟构成的微地貌系统动力结构和悬浮泥沙运动的研究不足,因此,需要在浅层测流的基础上,进一步探讨其规律。

The regular behavior of the suspend sediment on the mudflat and intertidal furrows in the yangtze estuary is summer-ized by the authors through relevant documents and field operations.At the present time,the study on its hyclrodynamic process is only limited to a few factors,while inquiring into the absorption of nitrogen,phosphorus and heavy metals is still at the beginning.The difficulty in getting surveying data on the mudflat hampered the study on the dynamic condition of the movement in mi-crophysiognomic system formed of mudflat and intertidal furrows.So it is essential to expound the phenomena on the basis of shallow water surveying.