Response of alpine lakes and soils to changes in acid deposition: the MAGIC model applied to the Tatra Mountain region, Slovakia-Poland
| Autor: | Vladimír Majer, Josef Veselý, Jiří Kopáček, Petra Šenáková, Evžen Tuchlík, David W. Hardekopf |
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| Rok vydání: | 2004 |
| Předmět: |
lcsh:GE1-350
Hydrology Ecology lcsh:Geography. Anthropology. Recreation chemistry.chemical_element Soil chemistry Weathering Aquatic Science Nitrogen atmospheric deposition water chemistry acidification recovery chemistry.chemical_compound lcsh:G chemistry Nitrate Soil water Carbonate lcsh:GB3-5030 Saturation (chemistry) lcsh:Physical geography Surface water lcsh:Environmental sciences Water Science and Technology |
| Zdroj: | Journal of Limnology, Vol 63, Iss 1, Pp 143-156 (2004) |
| ISSN: | 1723-8633 1129-5767 |
| DOI: | 10.4081/jlimnol.2004.143 |
| Popis: | A dynamic process-based model of surface water acidification, MAGIC, was applied to 31 representative alpine lakes in the Tatra Mountains (~50% of all alpine lakes >0.3 ha in the lake-district). The model was calibrated to observed lake chemistry for the period 1980-2002. Surface water and soil chemistry were reconstructed from 1860 to 2002, given estimates of historical acid deposition, and forecast to 2020 based on the reduction in sulphur and nitrogen emissions presupposed by the Gothenburg Protocol. In the 1860s, all lakes were buffered by the carbonate system and only ~6% of lakes had acid neutralising capacity (ANC) 50% of the SAA change) in sensitive lakes with intermediate weathering rates and little soils (low BC exchangeable capacity and elevated terrestrial export of nitrate) and (3) by parallel changes in concentrations of protons and aluminium (each ~20% of the SAA change) in extremely sensitive lakes, with the lowest weathering rates and soil base saturation. The full implementation of the Gothenburg Protocol will not be sufficient to allow recovery of the latter group of lakes, which will remain acidified after 2020. |
| Databáze: | OpenAIRE |
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