Articles | Volume 13, issue 1
https://doi.org/10.5194/bg-13-1-2016
https://doi.org/10.5194/bg-13-1-2016
Research article
 | 
14 Jan 2016
Research article |  | 14 Jan 2016

Nitrogen export from a boreal stream network following forest harvesting: seasonal nitrate removal and conservative export of organic forms

J. Schelker, R. Sponseller, E. Ring, L. Högbom, S. Löfgren, and H. Laudon

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Cited articles

Aber, J. D., Ollinger, S. V., Driscoll, C. T., Likens, G. E., Holmes, R. T., Freuder, R. J., and Goodale, C. L.: Inorganic nitrogen losses from a forested ecosystem in responseto physical, chemical, biotic,and climatic perturbations, Ecosystems, 5, 0648–0658, https://doi.org/10.1007/s10021-002-0203-8, 2002.
Alexander, R., Boyer, E. W., Smith, R. A., Schwarz, G. E., and Moore, R. B.: The role of headwater streams in downstream water quality1, JAWRA Journal of the American Water Resources Association, 43, 41–59, https://doi.org/10.1111/j.1752-1688.2007.00005.x, 2007.
Alexander, R., Böhlke, J., Boyer, E., David, M., Harvey, J., Mulholland, P., Seitzinger, S., Tobias, C., Tonitto, C., and Wollheim, W.: Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes, Biogeochemistry, 93, 91–116, https://doi.org/10.1007/s10533-008-9274-8, 2009.
Andréassian, V.: Waters and forests: From historical controversy to scientific debate, J. Hydrol., 291, 1–27, 2004.
Baker, M. A., Dahm, C. N., and Valett, H. M.: Acetate retention and metabolism in the hyporheic zone of a mountain stream, Limnol. Oceanogr., 44, 1530–1539, 1999.
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Short summary
The scientific question that is addressed in this study is how forest disturbance affects organic and inorganic nitrogen export from a boreal landscape. The key findings are that the mobilization of inorganic nitrogen from the terrestrial environment to streams increased strongly as a response to harvesting, but the stream network removed a major fraction of this load before it reached the outlet, while organic nitrogen was not removed and transported downstream.
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