珠江口伶仃洋水域悬浮物的分布特征

Distribution characteristics of suspended substance in the Lingdingyang water of the Pearl River Estuary

摘要: 2005年3月（枯水期）和8月（丰水期）对珠江口水域悬浮物进行了调查，结果表明：调查期间珠江口水域悬浮物含量在0.5~27.6 mgL-1 之间，平均值为5.73 mgL-1。其中，夏季悬浮物的平均含量为6.60 mgL-1,春季平均含量为4.86 mgL-1 ，夏季含量高于春季；悬浮物的含量分布呈西北部水域向东南部水域递减和近岸高于远岸的特点；悬浮物含量与水透明度、盐度、pH、DO含量呈负相关，与COD含量呈正相关；该水域悬浮物含量高于大亚湾大鹏澳水域。

Abstract: Suspended substance of the Pearl River Estuary was investigated in May (spring) and August (summer) 2003. The results revealed that the content of suspended substance in the Pearl River Estuary water recently ranged from 0.5 to 27.6 mgL-1, with the average of 5.73 mgL-1. The average content in summer is higher than that in spring with 6.60 mgL-1 and 4.86 mgL-1, respectively. The content distribution of suspended substance is characteristic of decreasing from northwest to southeast, and of being higher inshore than that of offshore. The content of suspended substance negatively correlated with transparency, salinity, pH and DO, and positively with COD,and is higher than that of the Dapengao in the Daya Bay.