Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath
Abstract Traditionally, biogenic volatile organic compound (BVOC) emissions are often considered a unidirectional flux, from the ecosystem to the atmosphere, but recent studies clearly show the potential for bidirectional exchange. Here we aimed to investigate how warming and leaf litter addition af...
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Online Access: | http://dx.doi.org/10.1111/gcb.15596 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15596 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.15596 |
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crwiley:10.1111/gcb.15596 2024-06-02T07:54:11+00:00 Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath Baggesen, Nanna Li, Tao Seco, Roger Holst, Thomas Michelsen, Anders Rinnan, Riikka Det Frie Forskningsråd Danmarks Grundforskningsfond H2020 European Research Council 2021 http://dx.doi.org/10.1111/gcb.15596 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15596 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.15596 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ Global Change Biology volume 27, issue 12, page 2928-2944 ISSN 1354-1013 1365-2486 journal-article 2021 crwiley https://doi.org/10.1111/gcb.15596 2024-05-03T10:50:31Z Abstract Traditionally, biogenic volatile organic compound (BVOC) emissions are often considered a unidirectional flux, from the ecosystem to the atmosphere, but recent studies clearly show the potential for bidirectional exchange. Here we aimed to investigate how warming and leaf litter addition affect the bidirectional exchange (flux) of BVOCs in a long‐term field experiment in the Subarctic. We also assessed changes in net BVOC fluxes in relation to the time of day and the influence of different plant phenological stages. The study was conducted in a full factorial experiment with open top chamber warming and annual litter addition treatments in a tundra heath in Abisko, Northern Sweden. After 18 years of treatments, ecosystem‐level net BVOC fluxes were measured in the experimental plots using proton‐transfer‐reaction time‐of‐flight mass spectrometry (PTR–ToF–MS). The warming treatment increased monoterpene and isoprene emissions by ≈50%. Increasing temperature, due to diurnal variations, can both increase BVOC emission and simultaneously, increase ecosystem uptake. For any given treatment, monoterpene, isoprene, and acetone emissions also increased with increasing ambient air temperatures caused by diurnal variability. Acetaldehyde, methanol, and sesquiterpenes decreased likely due to a deposition flux. For litter addition, only a significant indirect effect on isoprene and monoterpene fluxes (decrease by ~50%–75%) was observed. Litter addition may change soil moisture conditions, leading to changes in plant species composition and biomass, which could subsequently result in changes to BVOC emission compositions. Phenological stages significantly affected fluxes of methanol, isoprene and monoterpenes. We suggest that plant phenological stages differ in impacts on BVOC net emissions, but ambient air temperature and photosynthetically active radiation (PAR) also interact and influence BVOC net emissions differently. Our results may also suggest that BVOC fluxes are not only a response to changes in temperature ... Article in Journal/Newspaper Abisko Northern Sweden Subarctic Tundra Wiley Online Library Abisko ENVELOPE(18.829,18.829,68.349,68.349) Global Change Biology 27 12 2928 2944 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Traditionally, biogenic volatile organic compound (BVOC) emissions are often considered a unidirectional flux, from the ecosystem to the atmosphere, but recent studies clearly show the potential for bidirectional exchange. Here we aimed to investigate how warming and leaf litter addition affect the bidirectional exchange (flux) of BVOCs in a long‐term field experiment in the Subarctic. We also assessed changes in net BVOC fluxes in relation to the time of day and the influence of different plant phenological stages. The study was conducted in a full factorial experiment with open top chamber warming and annual litter addition treatments in a tundra heath in Abisko, Northern Sweden. After 18 years of treatments, ecosystem‐level net BVOC fluxes were measured in the experimental plots using proton‐transfer‐reaction time‐of‐flight mass spectrometry (PTR–ToF–MS). The warming treatment increased monoterpene and isoprene emissions by ≈50%. Increasing temperature, due to diurnal variations, can both increase BVOC emission and simultaneously, increase ecosystem uptake. For any given treatment, monoterpene, isoprene, and acetone emissions also increased with increasing ambient air temperatures caused by diurnal variability. Acetaldehyde, methanol, and sesquiterpenes decreased likely due to a deposition flux. For litter addition, only a significant indirect effect on isoprene and monoterpene fluxes (decrease by ~50%–75%) was observed. Litter addition may change soil moisture conditions, leading to changes in plant species composition and biomass, which could subsequently result in changes to BVOC emission compositions. Phenological stages significantly affected fluxes of methanol, isoprene and monoterpenes. We suggest that plant phenological stages differ in impacts on BVOC net emissions, but ambient air temperature and photosynthetically active radiation (PAR) also interact and influence BVOC net emissions differently. Our results may also suggest that BVOC fluxes are not only a response to changes in temperature ... |
author2 |
Det Frie Forskningsråd Danmarks Grundforskningsfond H2020 European Research Council |
format |
Article in Journal/Newspaper |
author |
Baggesen, Nanna Li, Tao Seco, Roger Holst, Thomas Michelsen, Anders Rinnan, Riikka |
spellingShingle |
Baggesen, Nanna Li, Tao Seco, Roger Holst, Thomas Michelsen, Anders Rinnan, Riikka Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath |
author_facet |
Baggesen, Nanna Li, Tao Seco, Roger Holst, Thomas Michelsen, Anders Rinnan, Riikka |
author_sort |
Baggesen, Nanna |
title |
Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath |
title_short |
Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath |
title_full |
Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath |
title_fullStr |
Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath |
title_full_unstemmed |
Phenological stage of tundra vegetation controls bidirectional exchange of BVOCs in a climate change experiment on a subarctic heath |
title_sort |
phenological stage of tundra vegetation controls bidirectional exchange of bvocs in a climate change experiment on a subarctic heath |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/gcb.15596 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15596 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.15596 |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) |
geographic |
Abisko |
geographic_facet |
Abisko |
genre |
Abisko Northern Sweden Subarctic Tundra |
genre_facet |
Abisko Northern Sweden Subarctic Tundra |
op_source |
Global Change Biology volume 27, issue 12, page 2928-2944 ISSN 1354-1013 1365-2486 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1111/gcb.15596 |
container_title |
Global Change Biology |
container_volume |
27 |
container_issue |
12 |
container_start_page |
2928 |
op_container_end_page |
2944 |
_version_ |
1800758508926271488 |