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.
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....
| Published in: | Plant and Soil |
|---|---|
| Main Authors: | , , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | German |
| Published: |
Springer
2012
|
| Subjects: | |
| Online Access: | https://push-zb.helmholtz-muenchen.de/frontdoor.php?source_opus=7944 https://doi.org/10.1007/s11104-011-0989-2 |
| Summary: | 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 ... |
|---|