Input of atmospheric precipitation nitrogen to the Baltic sea from its catchment
| Autor: | O. Golinets, I. V. Priputina, L. K. Erdman, Vladimir N. Bashkin, M. Kozlov, A. Abramychev |
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| Rok vydání: | 1995 |
| Předmět: |
Hydrology
geography Environmental Engineering Watershed geography.geographical_feature_category Ecological Modeling Drainage basin chemistry.chemical_element Pollution Nitrogen Deposition (aerosol physics) chemistry Environmental Chemistry Environmental science Seawater Precipitation Water pollution Surface runoff Water Science and Technology |
| Zdroj: | Water, Air, & Soil Pollution. 85:871-876 |
| ISSN: | 1573-2932 0049-6979 |
| Popis: | Input of atmospheric precipitation nitrogen (N) to the Baltic sea aquatorium from its drainage basin has been estimated. The deposition of nitrogen compounds on the catchment has been shown to be 5 times higher than their enter directly into the sea. An assessment of this input has been carried out by two methods (direct and indirect) and the results of calculations showed relatively high similarity. It has been demonstrated that the main source of data uncertainty is related to the values of nitrogen runoff and retention in different landuse types. Depending on the subregions the values of atmospheric nitrogen deposition runoff to the Baltic sea changed from 5 up to 16%, the minimum values were obtained for northern subregions and the maximum — for south-western ones. For the whole basin of the Baltic Sea during the 1987–1991 period these runoff values were 8–10% from the total amount of atmospheric nitrogen deposition input (1341–1401 kt) at catchment. The mean value was 122 kt in 1990 yr or 14% of total nitrogen input into the Baltic Sea from all sources. The given values must undoubtedly be taken into account in various scenarios of Transboundary Air Abatement Strategy. |
| Databáze: | OpenAIRE |
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