Origin of volatile organic compound emissions from subarctic tundra under global warming
Abstract Warming occurs in the Arctic twice as fast as the global average, which in turn leads to a large enhancement in terpenoid emissions from vegetation. Volatile terpenoids are the main class of biogenic volatile organic compounds (VOCs) that play crucial roles in atmospheric chemistry and clim...
Published in: | Global Change Biology |
---|---|
Main Authors: | , , , , , , , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/gcb.14935 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14935 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14935 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14935 |
id |
crwiley:10.1111/gcb.14935 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/gcb.14935 2024-09-15T18:08:05+00:00 Origin of volatile organic compound emissions from subarctic tundra under global warming Ghirardo, Andrea Lindstein, Frida Koch, Kerstin Buegger, Franz Schloter, Michael Albert, Andreas Michelsen, Anders Winkler, J. Barbro Schnitzler, Jörg‐Peter Rinnan, Riikka Natur og Univers, Det Frie Forskningsråd Villum Fonden H2020 European Research Council Danmarks Grundforskningsfond 2020 http://dx.doi.org/10.1111/gcb.14935 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14935 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14935 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14935 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Global Change Biology volume 26, issue 3, page 1908-1925 ISSN 1354-1013 1365-2486 journal-article 2020 crwiley https://doi.org/10.1111/gcb.14935 2024-08-13T04:19:25Z Abstract Warming occurs in the Arctic twice as fast as the global average, which in turn leads to a large enhancement in terpenoid emissions from vegetation. Volatile terpenoids are the main class of biogenic volatile organic compounds (VOCs) that play crucial roles in atmospheric chemistry and climate. However, the biochemical mechanisms behind the temperature‐dependent increase in VOC emissions from subarctic ecosystems are largely unexplored. Using 13 CO 2 ‐labeling, we studied the origin of VOCs and the carbon (C) allocation under global warming in the soil–plant–atmosphere system of contrasting subarctic heath tundra vegetation communities characterized by dwarf shrubs of the genera Salix or Betula . The projected temperature rise of the subarctic summer by 5°C was realistically simulated in sophisticated climate chambers. VOC emissions strongly depended on the plant species composition of the heath tundra. Warming caused increased VOC emissions and significant changes in the pattern of volatiles toward more reactive hydrocarbons. The 13 C was incorporated to varying degrees in different monoterpene and sesquiterpene isomers. We found that de novo monoterpene biosynthesis contributed to 40%–44% ( Salix ) and 60%–68% ( Betula ) of total monoterpene emissions under the current climate, and that warming increased the contribution to 50%–58% ( Salix ) and 87%–95% ( Betula ). Analyses of above‐ and belowground 12/13 C showed shifts of C allocation in the plant–soil systems and negative effects of warming on C sequestration by lowering net ecosystem exchange of CO 2 and increasing C loss as VOCs. This comprehensive analysis provides the scientific basis for mechanistically understanding the processes controlling terpenoid emissions, required for modeling VOC emissions from terrestrial ecosystems and predicting the future chemistry of the arctic atmosphere. By changing the chemical composition and loads of VOCs into the atmosphere, the current data indicate that global warming in the Arctic may have implications ... Article in Journal/Newspaper Global warming Subarctic Tundra Wiley Online Library Global Change Biology 26 3 1908 1925 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Warming occurs in the Arctic twice as fast as the global average, which in turn leads to a large enhancement in terpenoid emissions from vegetation. Volatile terpenoids are the main class of biogenic volatile organic compounds (VOCs) that play crucial roles in atmospheric chemistry and climate. However, the biochemical mechanisms behind the temperature‐dependent increase in VOC emissions from subarctic ecosystems are largely unexplored. Using 13 CO 2 ‐labeling, we studied the origin of VOCs and the carbon (C) allocation under global warming in the soil–plant–atmosphere system of contrasting subarctic heath tundra vegetation communities characterized by dwarf shrubs of the genera Salix or Betula . The projected temperature rise of the subarctic summer by 5°C was realistically simulated in sophisticated climate chambers. VOC emissions strongly depended on the plant species composition of the heath tundra. Warming caused increased VOC emissions and significant changes in the pattern of volatiles toward more reactive hydrocarbons. The 13 C was incorporated to varying degrees in different monoterpene and sesquiterpene isomers. We found that de novo monoterpene biosynthesis contributed to 40%–44% ( Salix ) and 60%–68% ( Betula ) of total monoterpene emissions under the current climate, and that warming increased the contribution to 50%–58% ( Salix ) and 87%–95% ( Betula ). Analyses of above‐ and belowground 12/13 C showed shifts of C allocation in the plant–soil systems and negative effects of warming on C sequestration by lowering net ecosystem exchange of CO 2 and increasing C loss as VOCs. This comprehensive analysis provides the scientific basis for mechanistically understanding the processes controlling terpenoid emissions, required for modeling VOC emissions from terrestrial ecosystems and predicting the future chemistry of the arctic atmosphere. By changing the chemical composition and loads of VOCs into the atmosphere, the current data indicate that global warming in the Arctic may have implications ... |
author2 |
Natur og Univers, Det Frie Forskningsråd Villum Fonden H2020 European Research Council Danmarks Grundforskningsfond |
format |
Article in Journal/Newspaper |
author |
Ghirardo, Andrea Lindstein, Frida Koch, Kerstin Buegger, Franz Schloter, Michael Albert, Andreas Michelsen, Anders Winkler, J. Barbro Schnitzler, Jörg‐Peter Rinnan, Riikka |
spellingShingle |
Ghirardo, Andrea Lindstein, Frida Koch, Kerstin Buegger, Franz Schloter, Michael Albert, Andreas Michelsen, Anders Winkler, J. Barbro Schnitzler, Jörg‐Peter Rinnan, Riikka Origin of volatile organic compound emissions from subarctic tundra under global warming |
author_facet |
Ghirardo, Andrea Lindstein, Frida Koch, Kerstin Buegger, Franz Schloter, Michael Albert, Andreas Michelsen, Anders Winkler, J. Barbro Schnitzler, Jörg‐Peter Rinnan, Riikka |
author_sort |
Ghirardo, Andrea |
title |
Origin of volatile organic compound emissions from subarctic tundra under global warming |
title_short |
Origin of volatile organic compound emissions from subarctic tundra under global warming |
title_full |
Origin of volatile organic compound emissions from subarctic tundra under global warming |
title_fullStr |
Origin of volatile organic compound emissions from subarctic tundra under global warming |
title_full_unstemmed |
Origin of volatile organic compound emissions from subarctic tundra under global warming |
title_sort |
origin of volatile organic compound emissions from subarctic tundra under global warming |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/gcb.14935 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.14935 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14935 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.14935 |
genre |
Global warming Subarctic Tundra |
genre_facet |
Global warming Subarctic Tundra |
op_source |
Global Change Biology volume 26, issue 3, page 1908-1925 ISSN 1354-1013 1365-2486 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/gcb.14935 |
container_title |
Global Change Biology |
container_volume |
26 |
container_issue |
3 |
container_start_page |
1908 |
op_container_end_page |
1925 |
_version_ |
1810445444997709824 |