对珠江口外CJ14区块250个站位的表层沉积物进行底栖有孔虫分析,共发现底栖有孔虫118种,其中玻璃壳质80种,瓷质壳质21种,胶结壳质17种。有孔虫丰度基本随水深变深而增大。为研究底栖有孔虫分布与沉积环境之间的关系,对底栖有孔虫含量进行Q型因子分析,并选取前4个主因子,分别对应4个有孔虫组合。它们总共解释了总方差的86.2%,基本上反映了沉积物中有孔虫的群落结构。研究表明,水深和盐度是影响珠江口表层沉积物中有孔虫组合分布的控制因素,其他影响因素主要包括沉积物类型、水动力条件和沉积速率。水动力条件主要影响有孔虫的含量;沉积速率主要影响有孔虫的丰度。 A total of 118 species of benthic foraminifera were found in the surface sediments of 250 stations in the CJ14 block outside the Pearl River estuary. Among them, there were 80 species of glass chitin, 21 types of porcelain chitin and 14 types of cemented chitin Species. Foraminifera abundance increases with depth. In order to study the relationship between benthic foraminifera distribution and sedimentary environment, Q-factor analysis was conducted on benthic foraminifera, and the first four main factors were selected, corresponding to four foraminiferal assemblages respectively. They explained a total of 86.2% of the total variance and basically reflected the community structure of foraminifera in the sediments. The results show that water depth and salinity are the controlling factors affecting the distribution of foraminiferal assemblages in the surface sediments of the Pearl River Estuary. Other influencing factors include sediment types, hydrodynamic conditions and sedimentation rates. Hydrodynamic conditions mainly affect the content of foraminifera; the deposition rate mainly affects the abundance of foraminifera.