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| Titel |
Acidification in Three Lake District Tarns: Historical Iong term trends and modelled future behaviour under changing sulphate and nitrate deposition |
| VerfasserIn |
P. G. Whitchead, J. Barlow, E. Y. Haworth, J. K. Adamson |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 1, no. 1 ; Nr. 1, no. 1, S.197-204 |
| Datensatznummer |
250000093
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| Publikation (Nr.) |
 copernicus.org/hess-1-197-1997.pdf |
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| Zusammenfassung |
| Three upland Lake District Tarns, Scoat, Greendale
and Burnmoor, have been evaluated using MAGIC (Model of Acidification
of Groundwater In Catchments) to reconstruct past, present and future chemical behaviour.
The modelled historical changes in acidity are compared with
palaeoecological estimation of pH to demonstrate model validity. Chemistry
as simulated for all anions and cations and two of the three lakes are
shown to have undergone significant acidification. The effects of changing
atmospheric pollution levels on lake chemistry is evaluated and 80-90% sulphur
reduction levels are required to achieve zero alkalinity. The impacts of
increased nitrogen deposition are assessed and are shown to further delay
reversibility. |
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