Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2012
Authors
Tatsiana Espevig Arne Tronsmo Linda Hjeljord Bingru R. Huang C Xu M. DaCosta B.B. Clarke Anne Marte Tronsmo Trygve S. AamlidAbstract
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Trygve S. Aamlid Siri Fjellheim Abdelhameed Elameen Sonja Klemsdal Kristin Daugstad Hans Martin Hanslin Knut Hovstad Dagmar Hagen Knut Rydgren Line RosefAbstract
Rapporten viser status for ECONADA-prosjektet ved årsskiftet 2011/2012.
Authors
J. Limpens G. Granath R Aerts M. M. P. D. Heijmans L. J. Sheppard L. Bragazza B. L. Williams H. Rydin J. Bubier T. Moore L. Rochefort E. A. D. Mitchell A Buttler L. J. L. van den Berg U Gunnarsson AJ Francez R Gerdol M. Thormann P. Grosvernier M. M. Wiedermann M. B. Nilsson M. R. Hoosbeek S. Bayley Jørn-Frode Nordbakken M. P. C. P. Paulissen S. Hotes A. Breeuwer M. Ilomets H. B. M. Tomassen I. Leith B. XuAbstract
Peat bogs have accumulated more atmospheric carbon (C) than any other terrestrial ecosystem today. Most of this C is associated with peat moss (Sphagnum) litter. Atmospheric nitrogen (N) deposition can decrease Sphagnum production, compromising the C sequestration capacity of peat bogs. The mechanisms underlying the reduced production are uncertain, necessitating multifactorial experiments.•We investigated whether glasshouse experiments are reliable proxies for field experiments for assessing interactions between N deposition and environment as controls on Sphagnum N concentration and production. We performed a meta-analysis over 115 glasshouse experiments and 107 field experiments.•We found that glasshouse and field experiments gave similar qualitative and quantitative estimates of changes in Sphagnum N concentration in response to N application. However, glasshouse-based estimates of changes in production – even qualitative assessments – diverged from field experiments owing to a stronger N effect on production response in absence of vascular plants in the glasshouse, and a weaker N effect on production response in presence of vascular plants compared to field experiments.•Thus, although we need glasshouse experiments to study how interacting environmental factors affect the response of Sphagnum to increased N deposition, we need field experiments to properly quantify these effects.
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Authors
Arne Sæbø Robert Popek Barbara Nawrot Hans Martin Hanslin Helena Gawronska Stanislaw W GawronskiAbstract
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