摘要
The different concentrations （0.10, 0.25, 0.50, 1.00 mg/L） of La^3＋ and the different concentrations （0.10, 0.25, 0.50, 1.00 mg/L） of La-EDTA were added into the simulant water body separately and the contents of DO, COD, N, P in the water body were determined regularly, The results prove that, when REE concentration is 0.25 mg/L or 0.50 mg/L, the growth of algae and eutrophication can be promoted. The promotive effect of latter is obvious. The condition that REE concentration is 0.10 mg/L or 1.00 mg/L can inhibit the growth of algae and eutrophication. Not only the promotive effect but also the inhibitive effect of La^3 ＋ is stronger than La-EDTA.
基金
Acknowledgements： This work was supported by the Natural Science Foundation of the Sichuan Provincial Education Office.
