Articles | Volume 13, issue 1
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,, 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,, 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,, 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.
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.
Final-revised paper