Bidirectional Exchange of Biogenic Volatile Organic Compounds in Subarctic Heath Mesocosms During Autumn Climate Scenarios
Biogenic volatile organic compound (BVOC) flux dynamics during the subarctic autumn are largely unexplored and have been considered insignificant due to the relatively low biological activity expected during autumn. Here, we exposed subarctic heath ecosystems to predicted future autumn climate scena...
Published in: | Journal of Geophysical Research: Biogeosciences |
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American Geophysical Union
2022
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Online Access: | http://hdl.handle.net/10261/275308 https://doi.org/10.1029/2021JG006688 https://doi.org/10.13039/501100000781 https://api.elsevier.com/content/abstract/scopus_id/85132948478 |
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ftcsic:oai:digital.csic.es:10261/275308 2024-06-23T07:44:52+00:00 Bidirectional Exchange of Biogenic Volatile Organic Compounds in Subarctic Heath Mesocosms During Autumn Climate Scenarios Baggesen, Nanna S. Davie-Martin, Cleo L. Seco, Roger Holst, Thomas Rinnan, Riikka European Research Council orcid: 2022-06-01 http://hdl.handle.net/10261/275308 https://doi.org/10.1029/2021JG006688 https://doi.org/10.13039/501100000781 https://api.elsevier.com/content/abstract/scopus_id/85132948478 en eng American Geophysical Union #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/771012 Journal of Geophysical Research: Biogeosciences Publisher's version https://doi.org/10.1029/2021JG006688 Sí JGR Biogeosciences 127 (6): e2021JG006688 (2022) 21698953 http://hdl.handle.net/10261/275308 doi:10.1029/2021JG006688 http://dx.doi.org/10.13039/501100000781 2-s2.0-85132948478 https://api.elsevier.com/content/abstract/scopus_id/85132948478 open Volatile organic compound Arctic Autumn Ecosystem-atmosphere interactions Flooding Global change artículo http://purl.org/coar/resource_type/c_6501 2022 ftcsic https://doi.org/10.1029/2021JG00668810.13039/501100000781 2024-05-29T00:00:47Z Biogenic volatile organic compound (BVOC) flux dynamics during the subarctic autumn are largely unexplored and have been considered insignificant due to the relatively low biological activity expected during autumn. Here, we exposed subarctic heath ecosystems to predicted future autumn climate scenarios (ambient, warming, and colder, dark conditions), changes in light availability, and flooding, to mimic the more extreme rainfall or snowmelt events expected in the future. We used climate chambers to measure the net ecosystem fluxes and bidirectional exchange of BVOCs from intact heath mesocosms using a dynamic enclosure technique coupled to a proton-transfer-reaction time-of-flight mass spectrometer (PTR–ToF–MS). We focused on six BVOCs (methanol, acetic acid, acetaldehyde, acetone, isoprene, and monoterpenes) that were among the most dominant and that were previously identified in arctic tundra ecosystems. Warming increased ecosystem respiration and resulted in either net BVOC release or increased uptake compared to the ambient scenario. None of the targeted BVOCs showed net release in the cold and dark scenario. Acetic acid exhibited significantly lower net uptake in the cold and dark scenario than in the ambient scenario, which suggests reduced microbial activity. Flooding was characterized by net uptake of the targeted BVOCs and overruled any temperature effects conferred by the climate scenarios. Monoterpenes were mainly taken up by the mesocosms and their fluxes were not affected by the climate scenarios or flooding. This study shows that although autumn BVOC fluxes on a subarctic heath are generally low, changes in future climate may strongly modify them. The authors thank Mathias Madsen for constructing the freezer climate chambers, Gosha Sylvester, Thea Jedig Steenberg, and Marie Louise Kristensen for help with soil analysis, Annika Kristofferson for meteorological data, and Søren Kristensen for graphical help. Abisko Scientific Research Station provided accommodation during field work. The study was ... Article in Journal/Newspaper Abisko Arctic Subarctic Tundra Digital.CSIC (Spanish National Research Council) Abisko ENVELOPE(18.829,18.829,68.349,68.349) Arctic Kristensen ENVELOPE(-159.667,-159.667,-86.333,-86.333) Journal of Geophysical Research: Biogeosciences 127 6 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Volatile organic compound Arctic Autumn Ecosystem-atmosphere interactions Flooding Global change |
spellingShingle |
Volatile organic compound Arctic Autumn Ecosystem-atmosphere interactions Flooding Global change Baggesen, Nanna S. Davie-Martin, Cleo L. Seco, Roger Holst, Thomas Rinnan, Riikka Bidirectional Exchange of Biogenic Volatile Organic Compounds in Subarctic Heath Mesocosms During Autumn Climate Scenarios |
topic_facet |
Volatile organic compound Arctic Autumn Ecosystem-atmosphere interactions Flooding Global change |
description |
Biogenic volatile organic compound (BVOC) flux dynamics during the subarctic autumn are largely unexplored and have been considered insignificant due to the relatively low biological activity expected during autumn. Here, we exposed subarctic heath ecosystems to predicted future autumn climate scenarios (ambient, warming, and colder, dark conditions), changes in light availability, and flooding, to mimic the more extreme rainfall or snowmelt events expected in the future. We used climate chambers to measure the net ecosystem fluxes and bidirectional exchange of BVOCs from intact heath mesocosms using a dynamic enclosure technique coupled to a proton-transfer-reaction time-of-flight mass spectrometer (PTR–ToF–MS). We focused on six BVOCs (methanol, acetic acid, acetaldehyde, acetone, isoprene, and monoterpenes) that were among the most dominant and that were previously identified in arctic tundra ecosystems. Warming increased ecosystem respiration and resulted in either net BVOC release or increased uptake compared to the ambient scenario. None of the targeted BVOCs showed net release in the cold and dark scenario. Acetic acid exhibited significantly lower net uptake in the cold and dark scenario than in the ambient scenario, which suggests reduced microbial activity. Flooding was characterized by net uptake of the targeted BVOCs and overruled any temperature effects conferred by the climate scenarios. Monoterpenes were mainly taken up by the mesocosms and their fluxes were not affected by the climate scenarios or flooding. This study shows that although autumn BVOC fluxes on a subarctic heath are generally low, changes in future climate may strongly modify them. The authors thank Mathias Madsen for constructing the freezer climate chambers, Gosha Sylvester, Thea Jedig Steenberg, and Marie Louise Kristensen for help with soil analysis, Annika Kristofferson for meteorological data, and Søren Kristensen for graphical help. Abisko Scientific Research Station provided accommodation during field work. The study was ... |
author2 |
European Research Council orcid: |
format |
Article in Journal/Newspaper |
author |
Baggesen, Nanna S. Davie-Martin, Cleo L. Seco, Roger Holst, Thomas Rinnan, Riikka |
author_facet |
Baggesen, Nanna S. Davie-Martin, Cleo L. Seco, Roger Holst, Thomas Rinnan, Riikka |
author_sort |
Baggesen, Nanna S. |
title |
Bidirectional Exchange of Biogenic Volatile Organic Compounds in Subarctic Heath Mesocosms During Autumn Climate Scenarios |
title_short |
Bidirectional Exchange of Biogenic Volatile Organic Compounds in Subarctic Heath Mesocosms During Autumn Climate Scenarios |
title_full |
Bidirectional Exchange of Biogenic Volatile Organic Compounds in Subarctic Heath Mesocosms During Autumn Climate Scenarios |
title_fullStr |
Bidirectional Exchange of Biogenic Volatile Organic Compounds in Subarctic Heath Mesocosms During Autumn Climate Scenarios |
title_full_unstemmed |
Bidirectional Exchange of Biogenic Volatile Organic Compounds in Subarctic Heath Mesocosms During Autumn Climate Scenarios |
title_sort |
bidirectional exchange of biogenic volatile organic compounds in subarctic heath mesocosms during autumn climate scenarios |
publisher |
American Geophysical Union |
publishDate |
2022 |
url |
http://hdl.handle.net/10261/275308 https://doi.org/10.1029/2021JG006688 https://doi.org/10.13039/501100000781 https://api.elsevier.com/content/abstract/scopus_id/85132948478 |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) ENVELOPE(-159.667,-159.667,-86.333,-86.333) |
geographic |
Abisko Arctic Kristensen |
geographic_facet |
Abisko Arctic Kristensen |
genre |
Abisko Arctic Subarctic Tundra |
genre_facet |
Abisko Arctic Subarctic Tundra |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/771012 Journal of Geophysical Research: Biogeosciences Publisher's version https://doi.org/10.1029/2021JG006688 Sí JGR Biogeosciences 127 (6): e2021JG006688 (2022) 21698953 http://hdl.handle.net/10261/275308 doi:10.1029/2021JG006688 http://dx.doi.org/10.13039/501100000781 2-s2.0-85132948478 https://api.elsevier.com/content/abstract/scopus_id/85132948478 |
op_rights |
open |
op_doi |
https://doi.org/10.1029/2021JG00668810.13039/501100000781 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
127 |
container_issue |
6 |
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1802650857884352512 |