Analysis and nonlinear regression on cyanobacteria growth of Guishui lake in Beijing suburb

Abstract

This paper analyzes the relationships among cyanobacteria number and water quality factors in the Guishui lake in Beijing remote suburb. The results show that the cyanobacteria growths are positively related with the concentrations of TP x P, TP/TN and TP/NO2. Based on the tested data from six water quality monitoring sites, a nonlinear regression formulas on the growths of blue algae cells was established. The calculated results on the number of the cyanobacteria via the nonlinear regression formulas are well in agreeing with the tested data. © 2012 Springer-Verlag GmbH.