Modelling stream and soil water nitrate dynamics during experimentally increased nitrogen deposition in a coniferous forest catchment at Gardsjon, Sweden

Futter, M. N., Skeffington, R. A., Whitehead, P. G. and Moldan, F. (2009) Modelling stream and soil water nitrate dynamics during experimentally increased nitrogen deposition in a coniferous forest catchment at Gardsjon, Sweden. Hydrology Research, 40 (2-3). pp. 187-197. ISSN 0029-1277 doi: 10.2166/nh.2009.076

Abstract/Summary

Increased atmospheric deposition of inorganic nitrogen (N) may lead to increased leaching of nitrate (NO3-) to surface waters. The mechanisms responsible for, and controls on, this leaching are matters of debate. An experimental N addition has been conducted at Gardsjon, Sweden to determine the magnitude and identify the mechanisms of N leaching from forested catchments within the EU funded project NITREX. The ability of INCA-N, a simple process-based model of catchment N dynamics, to simulate catchment-scale inorganic N dynamics in soil and stream water during the course of the experimental addition is evaluated. Simulations were performed for 1990-2002. Experimental N addition began in 1991. INCA-N was able to successfully reproduce stream and soil water dynamics before and during the experiment. While INCA-N did not correctly simulate the lag between the start of N addition and NO 2 3 breakthrough, the model was able to simulate the state change resulting from increased N deposition. Sensitivity analysis showed that model behaviour was controlled primarily by parameters related to hydrology and vegetation dynamics and secondarily by in-soil processes.

Additional Information
Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/3538
Item Type	Article
Refereed	Yes
Divisions	Science > School of Archaeology, Geography and Environmental Science > Department of Geography and Environmental Science Science > School of Archaeology, Geography and Environmental Science > Earth Systems Science Interdisciplinary centres and themes > Soil Research Centre
Uncontrolled Keywords	acidification; experimental nitrogen addition; Gardsjon; nitrogen leaching
Additional Information
Publisher	IWA Publishing
Download/View statistics	View download statistics for this item