No.0柴油水溶组分海洋浮游植物生态效应研究

应用现场和实验室培养方法,研究了No.0柴油水溶组分海洋浮游植物生态效应.提出了摄食条件下的海洋浮游植物生长模型和不同浓度No.0柴油水溶组分下浮游植物生长效应模型,分析了不同浓度No.0柴油水溶组分下浮游植物生长效应.结果表明,摄食条件下的海洋浮游植物生长模型较传统Logistic模型能更好地反映海洋生态系统,同时应用非线性拟合技术得到了不同浓度No.0柴油水溶组分下海洋浮游植物终止生物量（B_f）.根据海洋浮游植物生长效应模型进一步分析表明,在现场和实验室条件下,低浓度No.0柴油水溶组分对浮游植物生长有明显促进作用,生长促进率最大分别约为180%和120%,然而,在高浓度No.0柴油水溶组分条件下,石油烃对浮游植物生长效应不甚显著,甚至有明显抑制作用.

Ecological Effect of No.0 Diesel Water Accommodated Fraction on Marine Algae

With batch culture experiments in field and laboratory, the ecological effect of No.0 diesel water accommodated fraction on marine algae was studied. A growth model of marine algae under grazing pressure and a model of growth effect on marine algae with different doses No.0 diesel water accommodated fraction were proposed. Based on the model and experiments, the growth effect of No.0 diesel water accommodated fraction on marine algae was studied. The results show that, the growth model of marine algae under grazing pressure is more suited for the marine ecological system than Logistic model. And the final biomass (B_f) of marine algae with different doses No.0 diesel water accommodated fraction was calculated by the model with none-linear fitting software. The results also show that, under the field and laboratory conditions, lower doses No.0 diesel water accommodated fraction promotes the growth of marine algae, and the most promoting ratio are 180% and 120% respectively, however, higher doses hardly promotes but bates the growth of marine algae.