摘要
1996年9月、1997年5月对长江河口区进行综合调查,结果显示:长江河口区叶绿素 a 含量范围为0.78～6.12 mg/m^3,其总体分布从河口上游向下游呈递增,底层含量略高于表层。在影响叶绿素 a 分布与变化的众多因子中,盐度、潮流、浮游植物细胞数量、营养盐类、光照、海水浊度等环境因子与之关系密切。
Based on the results of multidisciplinary investigations in the Changjiang estuary(30°58′-31°47′N, 121°46′～122°30′E)in September 1996 and May 1997,this paper emphasises on discussing the distributional features of chlorophyll a in the Changjiang estuary and their relation to environmental factors.The results of the 2 investigations show that the distributional scope of chlorophyll a concentration in the Changjiang estuary is be- tween 0.78 mg/m^3 and 6.12 mg/m^3.The general distribution tendency presents that the concentration progres- sively increases from the upper to the lower reaches of the estuary and the concentration at bottom is lightly higher than that at surface.The distribution and variation of chlorophyll a are closely related to environmental factors such as salinity,tidal current,cell number of phytoplankton,nutrients,illumination and turbidity.
出处
《中国水产科学》
CAS
CSCD
1999年第5期1-5,共5页
Journal of Fishery Sciences of China
基金
农业部重点科研项目(渔95-B-96-10-01-0)
关键词
长江
河口区
叶绿素A
分布
潮流
盐度
海水
Changjiang River
estuary
chlorophyll a
distribution
tide current
salinity
nutrition
