Phosphorus (P) in a water body is mainly controlled by the interaction between surface sediment and the overlying water column after the complete control of external pollution. Significant enhancement of P in a water body would cause eutrophication of lakes. Thus, a better understanding is needed of the occurrences of P between the sediment and water column in eutrophic lakes. Here, we measured total phosphorus (TP) and major elements (Fe, Al, Ca, Mn, Si) in the water column, and total nitrogen, organic matter, TP and major oxides (Fe2O3, Al2O3, CaO, SiO2) in surface sediment of Chaohu Lake, a continuously eutrophic lake. The results showed that the rank of TP levels was western lake > eastern lake > southern lake. There were significantly positive correlations between TP (including water TP and sedimentary TP) and Fe, Al, Mn, while the correlation coefficients between water TP and sedimentary TP were −0.43, −0.41 and 0.18 for the western, eastern and southern lake respectively. The negative and significant correlations of water TP and sedimentary TP may indicate that the risk of sedimentary P release was great in the western and eastern lake during algae bloom sedimentation, while the southern lake showed weak P exchange between the sediment and water column.
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Research Article|
June 20 2016
Occurrence of phosphorus, iron, aluminum, silica, and calcium in a eutrophic lake during algae bloom sedimentation
Guolian Li;
1School of Environment and Energy Engineering, Anhui Jianzhu University Provincial Key Laboratory of Water Pollution Control and Waste Water Utilization, Hefei, Anhui 230601, China
E-mail: glli@mail.ustc.edu.cn
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Fazhi Xie;
Fazhi Xie
1School of Environment and Energy Engineering, Anhui Jianzhu University Provincial Key Laboratory of Water Pollution Control and Waste Water Utilization, Hefei, Anhui 230601, China
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Jin Zhang;
Jin Zhang
1School of Environment and Energy Engineering, Anhui Jianzhu University Provincial Key Laboratory of Water Pollution Control and Waste Water Utilization, Hefei, Anhui 230601, China
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Jingrou Wang;
Jingrou Wang
1School of Environment and Energy Engineering, Anhui Jianzhu University Provincial Key Laboratory of Water Pollution Control and Waste Water Utilization, Hefei, Anhui 230601, China
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Ying Yang;
Ying Yang
1School of Environment and Energy Engineering, Anhui Jianzhu University Provincial Key Laboratory of Water Pollution Control and Waste Water Utilization, Hefei, Anhui 230601, China
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Ruoru Sun
Ruoru Sun
2School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
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Water Sci Technol (2016) 74 (6): 1266–1273.
Article history
Received:
February 08 2016
Accepted:
May 24 2016
Citation
Guolian Li, Fazhi Xie, Jin Zhang, Jingrou Wang, Ying Yang, Ruoru Sun; Occurrence of phosphorus, iron, aluminum, silica, and calcium in a eutrophic lake during algae bloom sedimentation. Water Sci Technol 29 September 2016; 74 (6): 1266–1273. doi: https://doi.org/10.2166/wst.2016.277
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