Article (Scientific journals)
Comparing monoterpenoid emissions and net photosynthesis of beech (Fagus sylvatica L.) in controlled and natural conditions
Šimpraga; Verbeeck, H.; Demarcke, M. et al.
2011In Atmospheric Environment, 45 (17), p. 2922-2928
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Keywords :
Biospheric-atmospheric gas exchange; Carbon; European beech; Foliar monoterpenoids; Net photosynthesis; Temperature variation
Abstract :
[en] Although biogenic volatile organic compounds (BVOCs) only represent a very limited fraction of the plant's carbon (C) budget, they play an important role in atmospheric chemistry for example as a precursor of tropospheric ozone. We performed a study comparing BVOC emissions of European beech (Fagus sylvatica L.) in controlled and natural environmental conditions. A young and adult beech tree was exposed to short-term temperature variations in growth room conditions and in an experimental forest, respectively. This study attempts to clarify how short-term temperature variations between days influenced the ratio between monoterpenoid (MT) emissions and net photosynthesis (Pn). Within a temperature range of 17-27 °C and 13-23 °C, the MT/Pn carbon ratio increased 10-30 fold for the growth room and forest, respectively. An exponential increasing trend between MT/Pn C ratio and air temperature was observed in both conditions. Beech trees re-emitted a low fraction of the assimilated C back into the atmosphere as MT: 0.01-0.12% and 0.01-0.30% with a temperature rise from 17 to 27 °C and 13-23 °C in growth room and forest conditions, respectively. However, the data showed that the MT/Pn C ratio of young and adult beech trees responded significantly to changes in temperature.
Disciplines :
Physics
Author, co-author :
Šimpraga;  Ghent University, Faculty of Bioscience Engineering, Ghent, Belgium > Department of Applied Ecology and Environmental Biology > Laboratory of Plant Ecology
Verbeeck, H.;  Ghent University, Faculty of Bioscience Engineering, Ghent, Belgium > Department of Applied Ecology and Environmental Biology > Laboratory of Plant Ecology
Demarcke, M.;  Belgian Institute for Space Aeronomy, Brussels, Belgium
Joó, É.;  Ghent University, Faculty of Bioscience Engineering, Ghent, Belgium > Research Group Environmental Organic Chemistry and Technology
Amelynck, C.;  Belgian Institute for Space Aeronomy, Brussels, Belgium
Schoon, N.;  Belgian Institute for Space Aeronomy, Brussels, Belgium
Dewulf, J.;  Ghent University, Faculty of Bioscience Engineering, Ghent, Belgium > Research Group Environmental Organic Chemistry and Technology
van Langenhove, H.;  Ghent University, Faculty of Bioscience Engineering, Ghent, Belgium > Research Group Environmental Organic Chemistry and Technology
Heinesch, Bernard  ;  Université de Liège - ULiège > Sciences et technologie de l'environnement > Physique des bio-systèmes
Aubinet, Marc ;  Université de Liège - ULiège > Sciences et technologie de l'environnement > Physique des bio-systèmes
Müller, J.-F.;  Belgian Institute for Space Aeronomy, Brussels, Belgium
Steppe, K.;  Ghent University, Faculty of Bioscience Engineering, Ghent, Belgium > Department of Applied Ecology and Environmental Biology > Laboratory of Plant Ecology
Language :
English
Title :
Comparing monoterpenoid emissions and net photosynthesis of beech (Fagus sylvatica L.) in controlled and natural conditions
Publication date :
June 2011
Journal title :
Atmospheric Environment
ISSN :
1352-2310
eISSN :
1873-2844
Publisher :
Pergamon Press - An Imprint of Elsevier Science
Volume :
45
Issue :
17
Pages :
2922-2928
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 February 2013

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