Study on Phosphorus Distribution from Sediment of Different Trophic Area of Taihu Lake and its Temporal Changes

Abstract:

Phosphorus is the key restraining factor for algal growth and water eutrophication, which is a global problem of environmental pollution. Using a sequential phosphorus extraction method, the phosphorus forms in sediment and their distribution from different trophic area of Taihu Lake (China) and their temporal changes were studied. Results showed that, concentration of Fe-P in sediment was the highest and successively Al-P, which was much higher than that of Ca2-P, Ca10-P, Ca8-P and O-P. All the phosphorus forms were more abundant in sediment 16# of eutrophic lake area, higher than that of moderate eutrophic and the lower-grade trophic area, with the last as relatively the lowest. Phosphorus concentration in June and September was much higher than that of March. Phosphorus in sediment of Taihu Lake had great releasing potential to the overlying water.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 1663-1666
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.1663
• Online since: February 2013
• Authors: Jian Hang Qu*, Xiao Bing He, Hai Feng Li, Huan Chen Zhai, Yuan Sen Hu
• Keywords: Distribution, Phosphorus Forms, Releasing, Sediment, Water Eutrophication

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