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www.hydrol-earth-syst-sci.net/2/485/1998/
© Author(s) 1998. This work is licensed
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Modelling the response of soil and runoff chemistry to forest harvesting in a low deposition area (Kangasvaara, eastern Finland)
1Finnish Environment Institute, P.O.Box 140, FIN-00251 Helsinki, Finland.
2Finnish Forest Research Institute, Joensuu Research Station, P.O.Box 68, FIN-80101 Joensuu, Finland.
3Coordination Center for Effects, RIVM/MNV, P.O.Box 1, NL-3720 BA Bilthoven, The Netherlands.
*Author to whom all correspondence, proofs and offprint requests should be sent.
Abstract. 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.
Final Revised Paper (PDF, 1516 KB)
Citation: Kämäri, J., Rankinen, K., Finér, L., Piirainen, S., and Posch, M.: Modelling the response of soil and runoff chemistry to forest harvesting in a low deposition area (Kangasvaara, eastern Finland), Hydrol. Earth Syst. Sci., 2, 485-495, 1998. Bibtex EndNote Reference Manager
