东山湾营养盐的分布特征及其与叶绿素a的相互关系

The distribution characteristics of nutritive salt in Dongshan Bay and the its interrelation with chlorophyll a

依据2012-2013年的四个航次,对东山湾营养盐的时空分布特征及其与叶绿素a的关系进行调查研究。结果表明:东山湾海水中总无机氮、磷酸盐和硅酸盐的浓度均为夏季最低,而叶绿素a浓度则夏季最高。叶绿素a与磷酸盐、硝酸盐、铵盐和总无机氮存在显著负相关,而与盐度、亚硝酸盐和硅酸盐不存在显著相关性。

Investigate and study the spatial and temporal distribution characteristics of nutritive salt in Dongshan Bay and its interrelation with cholorophyll a according to the four voyage numbers from 2012 to 2013.The results show that the concentrations of total inorganic nitrogen,phosphate,silicate in the sea water of Dongshan Bay are the lowest in summer,while the concentration of cholorophyll a is the highest in summer.Cholorophyll a has a significant inverse correlation with phosphate,silicate,ammonium salt and total inorganic nitrogen.And cholorophyll a has no significant inverse correlation with salinity,nitrite and silicate.