Studying the response of Lake Ladoga ecosystem to a decrease in phosphorus load

被引：0
|
作者：
L. A. Rukhovets
N. A. Petrova
V. V. Menshutkin
G. P. Astrakhantsev
T. R. Minina
V. N. Poloskov
T. N. Petrova
O. M. Susareva
机构：
[1] Russian Academy of Sciences,St. Petersburg Institute for Economics and Mathematics
[2] Russian Academy of Sciences,Institute of Limnology
来源：
Water Resources | 2011年 / 38卷
关键词：
Lake Ladoga ecosystem; phosphorus turnover; bacterioplankton; aquatic fungi; anthropogenic eutrophication; assimilation potential; anthropogenic load;
D O I：
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摘要：
A study of the transformation of Lake Ladoga ecosystem in 1996–2005 shows that a decrease in the phosphorus load after 1995 has not cause a decrease in lake ecosystem productivity. Mathematical modeling provided an explanation of the observed phenomenon, thus justifying limnologists’ hypothesis that phosphorus turnover within a water body accelerates with increasing abundance of bacterioplankton and aquatic fungi. Computational experiments have shown that the additional amount of phosphorus that is required for maintaining phytoplankton productivity is additionally released by destructors (bacterioplankton and aquatic fungi) from detritus and organic matter dissolved in water.
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页码：806 / 817
页数：11
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