The Role of Dissolved Organic Carbon in a Shallow Lowland Reservoir Ecosystem — A Long‐term Study |
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Authors: | Andrzej G rniak,Piotr Zieli ski,El bieta Jekatierynczuk‐Rudczyk,Magdalena Grabowska,Tomasz Suchowolec |
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Affiliation: | Andrzej Górniak,Piotr Zieliński,Elżbieta Jekatierynczuk‐Rudczyk,Magdalena Grabowska,Tomasz Suchowolec |
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Abstract: | Long‐term studies were conducted on the polymictic Siemianówka reservoir (SR), situated in a seminatural forest‐peat catchment in NE Poland. The studies were started on the second year of the reservoir's existence. The records showed dissolved organic carbon (DOC) concentrations gradually increasing up to 25…30 mg/L. The largest DOC pool in the reservoir comes from the spring load input, supplemented by the excessive development of phytoplankton with cyanobacteria dominance. The DOC limited the range of the photic zone, eliminated the occurrence of aquatic plants, and was a significant carrier of nutrients, which were gradually released to water, bringing about the “humoeutrophication” of the reservoir. |
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Keywords: | DOC Hydrology Eutrophication Phytoplankton DOC Hydrologie Eutrophierung Phytoplankton |
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