Hydrochemical conditions of the “Chistaya Banka” polygon in the Volga’s avant delta |
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Authors: | A K Ambrosimov D A Ambrosimov P N Makkaveev Yu R Nalbandov L E Skibinskii P V Hlebopashev |
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Institution: | 1.Institute of Oceanology,Russian Academy of Sciences,Moscow,Russia;2.Faculty of Geography,Moscow State University,Moscow,Russia;3.Institute of Oceanology, Northwestern Branch,Russian Academy of Sciences,Archangelsk,Russia |
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Abstract: | Characteristics of different types of river drainage were obtained during studies of a polygon in the near-mouth part of the
Volga River in 2000–2003: “fast” (flowing through deep channels) and “slow” (that which passes through the littoral parts
of the delta (1–2 m)). The low current velocities (lower than in the channel waters by a factor of ten), the abundance of
water vegetation, and the strong heating of the waters lead to the high intensity of the biochemical processes. Therefore,
the chemical composition of the waters is subjected to significant transformation with intensity so high that it allows comparing
these regions with some sort of “bioreactor.” These changes influence the dissolved oxygen and various forms of carbon content. |
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