粤西海陵湾底质沉积特征与泥沙输运路径

在分析粤西海陵湾表层沉积物分布特征的基础上,应用泥沙搬运矢量模型计算了泥沙净输运趋势。结果表明,海区南北两端均存在着一个泥沙聚集区,北侧是径流与涨潮上潮流交绥的响应,南侧是波浪与落潮下泄流交绥的响应。分选性好的中部广大区域受单一动力作用,泥沙净输移方向由北指向南。

Characteristics of bottomsediment and sediment transport patterns in Hailing Bay

Based on the analysis of the surficial sediment distribution characteristics in Hailing Bay ,Western Guangdong,the paper computes the sediment net transport trends using "a sediment transport vector model ".The results show that there exists a sediment gathering area in the north and the south of the Bay,respectively ,the north one responds to the reciprocity of freshw ater discharge and flood tidal current;and the south one responds to the reciprocity of wave and ebb tidal current .It's more better sorted in most of middle part ,which transport path is from the north to the south .It also indicates that the sedimentary distribution and the grain size parameters accord with the dynamic environment. [WT5F1]