科研之友
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摘要
The tidal current, suspended sediment concentration and bed load grain size at Humen estuary of the Pearl River in spring tide during flood season in 2004 were observed by using ADP and traditional survey instruments. The flow characteristics and sediment transportation as well as the fluvial evolution of the estuary were analyzed based on the observation data. The results show that the tidal flow at the Humen estuary is in favor of the sediment to be slowly deposited at the Jiaoyi Bay and East beach of the Iingding Sea. The current of Fuzhou water course will not significantly influence the flow of main channel at Humen, and the suspended load coming from upstream is easy to be transported outwards through the river mouth. But the current tends to scour the northeast comer of Jibaosha reclamation area and the suspended sediment will be deposited in the downstream along the Shanban Island causing potential deposition in the waterway and the vicinity of the port.
