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- W2382122018 abstract "Nine group of algae growth experiments were studied in the laboratory under the appropriate conditions as follows:the water temperature and illumination were 20℃ and 8 000 lx respectively,the ratio of phosphorus and nitrogen concentrations was 30∶1,the water was collected from the central backwater reach at 139 m level of the tributary Daning River in the Three-Gorges Reservoir.With the increase of nitrogen and phosphorus concentrations,the algae changed from cleanly species to pollutant-resistant species,and the cell density,maximal Chla and algae growth rate showed the similar trend.The maximum growth rate were 1.16 d-1,and the half-saturated constants of nitrogen-limit and phosphorus-limit were 8.65 μmol·L-1 and 0.29 μmol·L-1 respectively,which indicated that the affinity of algae for phosphorus was better than nitrogen.Base on the data monitored in the central backwater reach at 139 m level of the tributary in the Three-Gorges Reservoir recently,the effects of different concentrations of nitrogen and phosphorus nutrients on algae growth were studied at the same time.The coefficients of φDIN and φPO4-P were 0.78～0.96 and 0.26～0.77,with the averages 0.90 and 0.52 respectively,indicating that phosphorus was the limiting element for algae growth in this water reach.Therefore,the emphasis of eutrophication controlling measure in Daning River should be on reducing the concentration of phosphorus and nitrogen especially phosphorus." @default.
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- W2382122018 date "2008-01-01" @default.
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- W2382122018 title "Simulation Study of Effects of Different Nitrogen and Phosphorus Concentrations on Algae Growth in the Central Backwater Reach of Daning River" @default.
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