| 1. | The weser estuary in germany , with broad beaches , lots of sand bars and many tributaries , is characterized with a great quantity of sediment transport due to tidal current ' s movement in the fluvial bed of fine sediment 摘要德国威悉河口滩地宽广,有无数的沙洲和许多大的分流,潮流在主要为细沙的冲积河床中运动,泥沙输移量极大。 |