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Faubert, P. ; Tiiva, P.* ; Michelsen, A.* ; Rinnan, A.* ; Ro-Poulsen, H.* ; Rinnan, R.*

The shift in plant species composition in a subarctic mountain birch forest floor due to climate change would modify the biogenic volatile organic compound emission profile.

Plant Soil 352, 199-215 (2012)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
Background and aims Mountain birch forests dominate in the Subarctic but little is known of their nonmethane biogenic volatile organic compound (BVOC) emissions. The dwarf shrubs Empetrum hermaphroditum, Vaccinium myrtillus and Vaccinium uliginosum co-dominate in the forest floors of these forests. The abundance of these three dwarf shrubs relative to each other could be affected by climate warming expected to increase nutrient availability by accelerating litter decomposition and nutrient mineralization. We 1) compared the BVOC emission profiles of vegetation covers dominated by E. hermaphroditum and V. myrtillus plus V. uliginosum in a subarctic mountain birch forest floor, 2) distinguished the BVOCs emitted from plants and soil and 3) measured how the BVOC emissions from the different vegetation covers differed under darkness. Methods BVOCs were sampled during two growing seasons using a conventional ecosystem chamberbased method, collected on adsorbent and analyzed with gas chromatography–mass spectrometry.Background and aims Mountain birch forests dominate in the Subarctic but little is known of their nonmethane biogenic volatile organic compound (BVOC) emissions. The dwarf shrubs Empetrum hermaphroditum, Vaccinium myrtillus and Vaccinium uliginosum co-dominate in the forest floors of these forests. The abundance of these three dwarf shrubs relative to each other could be affected by climate warming expected to increase nutrient availability by accelerating litter decomposition and nutrient mineralization. We 1) compared the BVOC emission profiles of vegetation covers dominated by E. hermaphroditum and V. myrtillus plus V. uliginosum in a subarctic mountain birch forest floor, 2) distinguished the BVOCs emitted from plants and soil and 3) measured how the BVOC emissions from the different vegetation covers differed under darkness. Methods BVOCs were sampled during two growing seasons using a conventional ecosystem chamberbased method, collected on adsorbent and analyzed with gas chromatography–mass spectrometry.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords BVOC; Subarctic; Betula pubescens ssp; czerepanovii; Empetrum nigrum ssp; hermaphroditum; Vaccinium myrtillus; Vaccinium uliginosum; SIMULATED ENVIRONMENTAL-CHANGE; ISOPRENE EMISSION; NORTHERN SWEDEN; CARBON BUDGET; UV-B; RESPONSES; TUNDRA; COMMUNITY; WETLAND; ECOSYSTEMS
ISSN (print) / ISBN 0032-079X
e-ISSN 1573-5036
Journal Plant and Soil
Quellenangaben Volume: 352, Issue: 1-2, Pages: 199-215 Article Number: , Supplement: ,
Publisher Springer
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Research Unit Environmental Simulation (EUS)