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| Titel |
Modelling the response of soil and runoff chemistry to forest harvesting in a low deposition area (Kangasvaara, eastern Finland) |
| VerfasserIn |
J. Kämäri, K. Rankinen, L. Finér, S. Piirainen, M. Posch |
| 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 ; 2, no. 4 ; Nr. 2, no. 4, S.485-495 |
| Datensatznummer |
250000646
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| Publikation (Nr.) |
 copernicus.org/hess-2-485-1998.pdf |
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| Zusammenfassung |
| A simple dynamic soil model developed to analyse the effects
of atmospheric deposition and nutrient cycling on terrestrial ecosystems, SMART 2, was
applied to the Kangasvaara catchment in eastern Finland. Given the historical deposition
and forest growth patterns and reasonable values for the input parameters, SMART 2 was
calibrated successfully to reproduce present-day soil and Kangasvaara catchment on the
soil and runoff water chemistry under a future deposition scenario (GRP scenario). These
impacts were also compared to the effects of further reducing the deposition of sulphur
and nitrate under the maximum feasible reduction (MFR) scenario. The model demonstrates
the consequences of breaking the nutrient cycle, and predicts that final cutting results
in increased leaching of inorganic nitrogen and base cations from the cut part of the
catchment for about 10 years. The resulting concentrations in the stream will depend on
the ability of the buffer zones surrounding the stream to capture and utilize these
nutrients. |
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