福建主要港湾悬浮物、悬浮有机质等环境因子的分布与变化

依据2001年福建主要港湾水体中悬浮物质的调查资料,讨论了悬浮物(TPM)、悬浮有机质(POM)的分布和动态变化特征。TPM季平均质量浓度为20.86~22.68 mg.dm-3,年平均为21.50 mg.dm-3;其季节变化为11月最高,8月次高,5月最低。11月最高主要受风浪和潮流的影响。POM季平均质量浓度为3.14~3.36 mg.dm-3,年平均为3.27 mg.dm-3;其季节变化为8月最高,5月次高,11月最低。夏季POM的含量分布主要受生物活动影响。叶绿素a季平均质量浓度为6.01~9.02 mg.m-3,初级生产力季平均为54.9~412.8 mgC.m-2.d-1,都是8月最高,11月最低。浮游植物细胞数季平均为3 563.4×103~24 862.4×103个.m-3,5月最高,11月最低。

Distribution and Variation of Environment Factors of Suspended Matter and Suspended Organic Matter in the Main Bays in Fujian

Based on the investigation data of suspended matter in the waters of main bays in Fujian in 2001,distribution and time-dependent characteristics of suspended matter(TPM) and suspended organic matter(POM) are discussed in this paper. The seasonal average values of TPM in the sea water in spring,summer and autumn are 20.86～22.68 mg·dm~(-3) in mass cocentration,with an annual average of 21.50 mg·dm~(-3). It is the highest in November,the second comes in August and the lowest in May. The highest in November is mainly influenced by waves and tidal flows. The seasonal average values of POM in the sea water are 3.14～3.36 mg·dm~(-3),with an annual average of 3.27 mg·dm~(-3) in mass concentration. It is the highest in August,the second comes in May and the lowest in November. Distribution of POM content in summer is mainly controlled by organism activity. The seasonal average chlorophyll-a is 6.01～9.02 mg·m~(-3) in mass concentration and the seasonal average primary productivity is 54.9～412.8 mgC·m~(-2)·d,and the both become the highest in August and the lowest in November. The seasonal average phytoplankton is 3 563.4×10~3～24 862.4×10~3 ind·m~(-3) with the highest in May and the lowest in November.