乳山湾浮游植物与环境因子的相关关系研究

Correlation of photoplankton and its environmental factors in Rushan bay.

研究了 1995年乳山湾 6～ 9月浮游植物与环境因子的关系 ,结果表明 ,浮游植物与环境因子有着密切关系 ,无机营养盐与浮游植物数量有较好的负相关关系 ;无机氮和无机磷与浮游植物相关系数分别为 -0 6 7和 -0 80 .而溶解氧和叶绿素 a与浮游植物呈较密切的正相关关系 ,其相关系数分别为 0 92和 0 85 .由N/P分析 ,除 8月下旬外 ,其它月份无机氮对于浮游植物的繁殖生长均显得相对紧缺 .

The relationship between photoplankton and its environmental factors in Rushan Bay was studied from June to September,1995.The result shows that there existed a negative correlation between the number of photoplankton and the content of inorganic nutrients.The correlation coefficients for inorganic nitrogen and phosphorus were -0 67 and -0.80,respectively.The dissolved oxygen and chlorophyll a were positively correlated to photoplankton,and their correlation coefficients were 0.92 and 0.85 respectively.Based on N/P analysis,the content of inorganic nitrogen was relatively short to the reproductive growth of photoplankton during experimental months,except for the last ten days of August.