海州湾多纹膝沟藻赤潮的动态相关分析

以2004年海州湾发生的一次多纹膝沟藻赤潮为研究对象.通过主成分分析对赤潮发生期间的环境因子和赤潮发展关系进行动态分析,同时通过相关分析探讨环境因子和赤潮藻类浓度的关系.结果表明:影响赤潮的主导因子为COD、叶绿素、PO3-4-P和pH值.相关分析表明在建立藻类浓度反演模型时需考虑藻类浓度与PH值间线性关系,藻类浓度与DO、叶绿素、COD、PO3-4-P间非线性关系,可以将水温、气压、盐度等作为独立因子考虑.

Dynamic and correlative analysis of the Gonyaulax polygramma red tide in Haizhou Gulf

The research object is Gonyaulax polygramma red tide which broke out at Haizhou Gulf in 2004.The paper presents the dynamic analysis on the relation between the environmental factors which occurred during red tide period and the red tide development by the principal component analysis.It also was found that the correlative relation between the environmental factors and this red tide alga concentration(AC) by means of linear and non-linear correlative analysis.The results indicate that COD,chlorophyll,PO3-4-P,and pH could be the dominant factors for the occurrence of red tide.The results of correlative analysis are that the linear relation between pH and AC,non-linear relations between DO,chlorophyll,COD,PO3-4-P and AC,should be considered when AC model is found.The water temperature,atmospherical pressure,salinity and other factors are considered as independent factors.