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has been cited by the following article:

• TITLE: Influence Factors Analysis to Chlorophyll a of Spring Algal Bloom in Xiangxi Bay of Three Gorges Reservoir

  AUTHORS: Huajun LUO, Defu LIU, Daobin JI, Yuling HUANG, Yingping HUANG

  KEYWORDS: Stepwise Multiple Binomial Regression, Grey Relative Analysis, Chlorophyll a, Environment Variables, Algal Bloom, Xiangxi Bay

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.1 No.3, September 21, 2009

  ABSTRACT: To study the relationship between environmental variables and chlorophyll a of spring algal bloom in Xiangxi Bay of Three Gorges Reservoir, stepwise multiple binomial regression and grey relative analysis methods were adopted. In surveys, 13 stations have been investigated and 143 samples were collected weekly from March 4 to May 13 in 2007. The study shows environmental variables (turbidity, total nitrogen, dissolved oxygen, total phosphates and silicate) are key factors during algal bloom. The grey relative values and their permutation indicated that turbidity was the most important factor and had comprehensive effect on chlorophyll a. The more number of interactive variables is found to be an indication of biochemical activity during spring algal bloom in Xiangxi Bay such as DO×TN, Turb×TP and so on. There was good linear relationship between chlorophyll a and the interaction of DO with TN ( , ).The interac-tion of nutrients (TP×TN, TP×SiO4, TN×SiO4) had significant influence to chlorophyll a and probably determined the inter-specific competition at different nutrient concentrations.