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研究河口水沙输移规律,尤其是近年来河口水沙输移变化趋势,对于河口综合治理有着重要意义。根据近年来两次洪水期的水沙观测资料,分析了“05·6”洪水期珠江河口水沙输移及在各口门的分配,点绘了各口门流量与输沙率关系曲线,并与“99·7”洪水期水沙输移进行了对比,在此基础上对河口输沙率变化的原因进行了简要分析。
Studying the law of water and sediment transport in estuaries, especially the trend of sediment transport in estuaries in recent years, is of great significance to comprehensive management of estuaries. According to the observation data of water and sediment during the two floods in recent years, this paper analyzes the water and sediment transport in the Pearl River Estuary during the flood season of “05 · 6” and the distribution at each port, and draws the relationship between the discharge of each port and the sediment transport rate Curve and compared with the “99 · 7” flood and water transport during flood period, on the basis of which, the reason of the change of sediment transport rate in estuary was briefly analyzed.