Glasshouse vs field experiments do they yield ecologically similar results for assessing N impacts on peat mosses?

Glasshouse vs field experiments : do they yield ecologically similar results for assessing N impacts on peat mosses?

© 2012 The Authors. New Phytologist © 2012 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 195(2012), 2 vom: 04. Juli, Seite 408-418
1. Verfasser: Limpens, J (VerfasserIn)
Weitere Verfasser: Granath, G, Aerts, R, Heijmans, M M P D, Sheppard, L J, Bragazza, L, Williams, B L, Rydin, H, Bubier, J, Moore, T, Rochefort, L, Mitchell, E A D, Buttler, A, van den Berg, L J L, Gunnarsson, U, Francez, A-J, Gerdol, R, Thormann, M, Grosvernier, P, Wiedermann, M M, Nilsson, M B, Hoosbeek, M R, Bayley, S, Nordbakken, J-F, Paulissen, M P C P, Hotes, S, Breeuwer, A, Ilomets, M, Tomassen, H B M, Leith, I, Xu, B
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Comparative Study Journal Article Nitrogen N762921K75
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245 1 0 |a Glasshouse vs field experiments  |b do they yield ecologically similar results for assessing N impacts on peat mosses? 
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500 |a CommentIn: New Phytol. 2012 Jul;195(2):279-81. - PMID 22702404 
500 |a Citation Status MEDLINE 
520 |a © 2012 The Authors. New Phytologist © 2012 New Phytologist Trust. 
520 |a • 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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650 4 |a Journal Article 
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650 7 |a N762921K75  |2 NLM 
700 1 |a Granath, G  |e verfasserin  |4 aut 
700 1 |a Aerts, R  |e verfasserin  |4 aut 
700 1 |a Heijmans, M M P D  |e verfasserin  |4 aut 
700 1 |a Sheppard, L J  |e verfasserin  |4 aut 
700 1 |a Bragazza, L  |e verfasserin  |4 aut 
700 1 |a Williams, B L  |e verfasserin  |4 aut 
700 1 |a Rydin, H  |e verfasserin  |4 aut 
700 1 |a Bubier, J  |e verfasserin  |4 aut 
700 1 |a Moore, T  |e verfasserin  |4 aut 
700 1 |a Rochefort, L  |e verfasserin  |4 aut 
700 1 |a Mitchell, E A D  |e verfasserin  |4 aut 
700 1 |a Buttler, A  |e verfasserin  |4 aut 
700 1 |a van den Berg, L J L  |e verfasserin  |4 aut 
700 1 |a Gunnarsson, U  |e verfasserin  |4 aut 
700 1 |a Francez, A-J  |e verfasserin  |4 aut 
700 1 |a Gerdol, R  |e verfasserin  |4 aut 
700 1 |a Thormann, M  |e verfasserin  |4 aut 
700 1 |a Grosvernier, P  |e verfasserin  |4 aut 
700 1 |a Wiedermann, M M  |e verfasserin  |4 aut 
700 1 |a Nilsson, M B  |e verfasserin  |4 aut 
700 1 |a Hoosbeek, M R  |e verfasserin  |4 aut 
700 1 |a Bayley, S  |e verfasserin  |4 aut 
700 1 |a Nordbakken, J-F  |e verfasserin  |4 aut 
700 1 |a Paulissen, M P C P  |e verfasserin  |4 aut 
700 1 |a Hotes, S  |e verfasserin  |4 aut 
700 1 |a Breeuwer, A  |e verfasserin  |4 aut 
700 1 |a Ilomets, M  |e verfasserin  |4 aut 
700 1 |a Tomassen, H B M  |e verfasserin  |4 aut 
700 1 |a Leith, I  |e verfasserin  |4 aut 
700 1 |a Xu, B  |e verfasserin  |4 aut 
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