Geoecological Assessment of Water Quality of the Kuchinsky Pond Near Moscow by Phytoplankton Under Algolisation Conditions
Abstract
The purpose is to assess the ecological condition of the Kuchinsky Pond while applying the algolisation method to substantiate water quality criteria under anthropogenic pressures. Materials and methods. Phytoplankton samples were taken during algolization in each vegetation season and studied microscopically. The taxonomic and ecological composition of phytoplankton communities was reconstructed, which further served as a basis for applying the bioindication method and the Razumovsky method of graphical analysis of taxonomic proportions using graphs of linear and logarithmic coordinates. Results and discussion. The state of the ecosystem of a small water body in the example of Kuchinsky Pond was formed under conditions of anthropogenic impact of the catchment area, but with a constant adjustment of water quality using algolization. Taxonomic and ecological composition of microalgae and cyanobacteria, their abundance estimates allowed to calculate saprobicity index, values of average number and average biomass of phytoplankton and determine class and category of water quality. The aquatic ecosystem is at the level of reversible changes in terms of crisis, which is clearly confi rmed by the analysis of taxonomic proportions according to Razumovsky, linear and logarithmic coordinates graphs. Conclusions. The conducted research confi rms the importance of the method of correction of the algocenosis in the formation of an ecologically favourable situation in the aquatic ecosystem.
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References
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