Evaluation of Total Phosphorus as a Predictor of the Relative Biomass of Blue-green Algae with Emphasis on Alberta Lakes
Evaluation of Total Phosphorus as a Predictor of the Relative Biomass of Blue-green Algae with Emphasis on Alberta Lakes
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DOI：
10.1139/f87-158
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发表时间：
1987-07
影响因子：
2.4
通讯作者：
A. M. Trimbee;E. Prepas
中科院分区：
文献类型：
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作者：
A. M. Trimbee;E. Prepas
基于总氮（TN）、总磷（TP）、Secchi圆盘深度（SD）和混合层深度（Zm）的两个近期经验模型均低估了阿尔伯塔湖淡水（总溶解固体< 500 mg∙L−1）中蓝绿藻的相对生物量。为了消除非动态平衡湖泊数据带来的潜在偏差，我们对这些经验模型中的数据进行了重新组合，并生成了一个基于TP的新模型。与基于TN、TP、SD和Zm的原始模型相比，该模型对相对蓝绿藻生物量的贡献率提高了11%，与基于TN / TP和SD / Zm的模型相比，该模型的贡献率提高了21%。与原来的模型相比，这个新模型也能更好地预测阿尔伯塔省湖泊中蓝绿藻的相对生物量。此外，对于艾伯塔省的湖泊，总磷比全氮或总磷比更能预测总蓝绿藻生物量。我们的分析表明，对于大量湖泊，TP可能…
The relative biomass of blue-green algae in freshwater (total dissolved solids < 500 mg∙L−1) Alberta lakes was consistently underestimated by two recent empirical models based on total nitrogen (TN), total phosphorus (TP), Secchi disc depth (SD), and depth of the mixed layer (Zm). We regrouped the data used in these empirical models to eliminate the potential biases introduced by including data from lakes not in dynamic equilibrium and generated a new model based on TP. This new model accounted for 11% more of the variation in relative blue-green algal biomass than the original model based on TN, TP, SD, and Zm and 21% more than the model based on TN to TP ratios and SD to Zm ratios. This new model was also a much better predictor of the relative biomass of blue-green algae in Alberta lakes than the original models. In addition, for lakes in Alberta, TP was a much better predictor of total blue-green algal biomass than TN or the TN to TP ratio. Our analyses suggest that for large numbers of lakes, TP may ...