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Astrakhantsev G. P. Minina T. R. Petrova N. A. Poloskov V. N. Rukhovets L. A. 《Water Resources》2003,30(2):209-220
A zoobenthos submodel is included in an ecosystem model. The new model is used to assess the role of zoobenthos in the phosphorus exchange at the water–bed interface, in particular, the phosphorus cycle in the water body ecosystem is described more accurately. The calculated zoobenthos distribution over the bed of a lake can be used in modeling the lake ichthyocenoses. 相似文献
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L. A. Rukhovets G. P. Astrakhantsev A. N. Mal’gin V. N. Poloskov A. Yu. Terzhevik N. N. Filatov 《Water Resources》2006,33(5):511-522
The results of numerical modeling of Onega Lake climatic circulation are presented. The model used in this study was developed earlier and successfully applied to the reproduction of large-scale hydrodynamical processes in Ladoga Lake. The obtained results are of importance for the development of both models of nonreactive pollutant transport and ecosystem models of the water body. The developed model can be used to calculate currents and temperature fields for individual scenarios of external impacts on the water body, and the results of calculation of the climatic circulation can serve as initial approximations for scenario-based calculations. 相似文献
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L. A. Rukhovets G. P. Astrakhantsev T. R. Minina N. A. Petrova V. N. Poloskov 《Water Resources》2006,33(3):338-352
The effect of potential climate changes on the ecosystem of Lake Ladoga at different levels of anthropogenic load is studied using mathematical models. The Lake Ladoga year-round circulation corresponding to potential climate changes in the lake catchment area is reproduced. The year-round regime of functioning of the lake ecosystem is reproduced using ecosystem models. The potential changes in the lake ecosystem due to changes in the phosphorus load within the limits observed in 1961–1983 are found to be more essential than those due to prognostic changes in climate. 相似文献
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L. A. Rukhovets N. A. Petrova V. V. Menshutkin G. P. Astrakhantsev T. R. Minina V. N. Poloskov T. N. Petrova O. M. Susareva 《Water Resources》2011,38(6):806-817
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. 相似文献
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