石油烃污染物对海洋浮游植物生长的影响——实验与模型  

Effects of Petroleum Hydrocarbon on the Growth of Marine Algae:Experiment Versus Model

作　　者：张蕾[1] 王修林[1] 韩秀荣[1] 祝陈坚[1] 石晓勇[1] 蒋凤华[1] 杨汝君[1] 

机构地区：[1]青岛海洋大学化学化工学院,青岛266003

出　　处：《青岛海洋大学学报（自然科学版）》2002年第5期804-810,共7页Journal of Ocean University of Qingdao

基　　金：国家自然科学基金 (40 136 0 2 0 ;4 9976 0 2 7);教育部重点项目(0 110);山东省基金(L2 0 0 0 E0 1);跨世纪优秀人才培养计划基金;973国家重点基础研究发展规划项目(0 0 1CB4 0 970 3)资助

摘　　要：本文应用 1次培养实验方法 ,研究了 No.0柴油石油烃污染物对 6种海洋浮游植物生长的影响 ,结果表明 ,高浓度石油烃污染物 (CPH>1.0 5 mg· dm-3 )对裸甲藻 ,新月菱形藻 ,三角褐指藻 ,小球藻和亚心形扁藻的生长有抑制作用 ,对于中肋骨条藻 ,石油烃污染物浓度在高于 1.96 mg· dm-3 时抑制其生长。但低浓度石油烃污染物则易促进赤潮藻类 (裸甲藻 ,新月菱形藻 ,中肋骨条藻 )的生长。在 Logistic生长模型的基础上 ,结合 L orentz方程和 Exponential方程 ,引入石油烃污染物浓度项 ,建立石油烃污染物条件下的海洋浮游植物生长的模型。Lorentz方程可描述石油烃污染物对浮游植物生长速率参数的影响 ,Exponential方程可描述石油烃污染物对浮游植物生物量的影响 。With batch culture experiment, we tested the effects of petroleum hydrocarbon (PH) associated with No.0 diesel on the growth of 6 species of marine algae, including red tide algae and good algae. The experimental results show that the growth of Gymnodinium sp., Nitzschia closterium, Pheodactylum tricornutum, Chlorella vulgaris and Platymonas subcordiformis are inhabited when the concentration of PH ( C PH ) is greater than 1.05mg·dm -3 , and the growth of Skeleton costatum is inhibited when C PH exceeds 1.96mg·dm -3 . But, lower doses promote the growth of marine algae, especially red tide algae, including Gymnodinium sp., Nitzschia closterium and Skeleton costatum . A growth model, with consideration of the effects of PH on the growth of marine algae, is developed by incorporating the Logistic growth model with the Lorentz and exponential equations. The Lorentz equation can describe the effect of PH on the growth rate constant, while the exponential equation describes that on the final biomass of algae. It is demonstrated that the growth model showed good fitting for the experimental data.

关 键 词：赤潮 石油烃 浮游植物 生长模型 抑制作用 

分 类 号：X55[环境科学与工程—环境工程]