Strong isoprene emission response to temperature in tundra vegetation
Emissions of biogenic volatile organic compounds (BVOCs) are a crucial component of biosphere–atmosphere interactions. In northern latitudes, climate change is amplified by feedback processes in which BVOCs have a recognized, yet poorly quantified role, mainly due to a lack of measurements and conco...
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Online Access: | https://curis.ku.dk/portal/da/publications/strong-isoprene-emission-response-to-temperature-in-tundra-vegetation(e345c7e7-df5a-4ee6-b68b-84e2baa961aa).html https://doi.org/10.1073/pnas.2118014119 https://curis.ku.dk/ws/files/320388975/pnas.2118014119.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/e345c7e7-df5a-4ee6-b68b-84e2baa961aa 2024-06-09T07:50:00+00:00 Strong isoprene emission response to temperature in tundra vegetation Seco, Roger Holst, Thomas Davie-Martin, Cleo L. Simin, Tihomir Guenther, Alex Pirk, Norbert Rinne, Janne Rinnan, Riikka 2022 application/pdf https://curis.ku.dk/portal/da/publications/strong-isoprene-emission-response-to-temperature-in-tundra-vegetation(e345c7e7-df5a-4ee6-b68b-84e2baa961aa).html https://doi.org/10.1073/pnas.2118014119 https://curis.ku.dk/ws/files/320388975/pnas.2118014119.pdf eng eng info:eu-repo/semantics/openAccess Seco , R , Holst , T , Davie-Martin , C L , Simin , T , Guenther , A , Pirk , N , Rinne , J & Rinnan , R 2022 , ' Strong isoprene emission response to temperature in tundra vegetation ' , PNAS , vol. 119 , no. 38 , e2118014119 . https://doi.org/10.1073/pnas.2118014119 article 2022 ftcopenhagenunip https://doi.org/10.1073/pnas.2118014119 2024-05-16T11:29:25Z Emissions of biogenic volatile organic compounds (BVOCs) are a crucial component of biosphere–atmosphere interactions. In northern latitudes, climate change is amplified by feedback processes in which BVOCs have a recognized, yet poorly quantified role, mainly due to a lack of measurements and concomitant modeling gaps. Hence, current Earth system models mostly rely on temperature responses measured on vegetation from lower latitudes, rendering their predictions highly uncertain. Here, we show how tundra isoprene emissions respond vigorously to temperature increases, compared to model results. Our unique dataset of direct eddy covariance ecosystem-level isoprene measurements in two contrasting ecosystems exhibited Q10 (the factor by which the emission rate increases with a 10 °C rise in temperature) temperature coefficients of up to 20.8, that is, 3.5 times the Q10 of 5.9 derived from the equivalent model calculations. Crude estimates using the observed temperature responses indicate that tundra vegetation could enhance their isoprene emissions by up to 41% (87%)—that is, 46% (55%) more than estimated by models—with a 2 °C (4 °C) warming. Our results demonstrate that tundra vegetation possesses the potential to substantially boost its isoprene emissions in response to future rising temperatures, at rates that exceed the current Earth system model predictions. Article in Journal/Newspaper Tundra University of Copenhagen: Research Proceedings of the National Academy of Sciences 119 38 |
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Open Polar |
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University of Copenhagen: Research |
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ftcopenhagenunip |
language |
English |
description |
Emissions of biogenic volatile organic compounds (BVOCs) are a crucial component of biosphere–atmosphere interactions. In northern latitudes, climate change is amplified by feedback processes in which BVOCs have a recognized, yet poorly quantified role, mainly due to a lack of measurements and concomitant modeling gaps. Hence, current Earth system models mostly rely on temperature responses measured on vegetation from lower latitudes, rendering their predictions highly uncertain. Here, we show how tundra isoprene emissions respond vigorously to temperature increases, compared to model results. Our unique dataset of direct eddy covariance ecosystem-level isoprene measurements in two contrasting ecosystems exhibited Q10 (the factor by which the emission rate increases with a 10 °C rise in temperature) temperature coefficients of up to 20.8, that is, 3.5 times the Q10 of 5.9 derived from the equivalent model calculations. Crude estimates using the observed temperature responses indicate that tundra vegetation could enhance their isoprene emissions by up to 41% (87%)—that is, 46% (55%) more than estimated by models—with a 2 °C (4 °C) warming. Our results demonstrate that tundra vegetation possesses the potential to substantially boost its isoprene emissions in response to future rising temperatures, at rates that exceed the current Earth system model predictions. |
format |
Article in Journal/Newspaper |
author |
Seco, Roger Holst, Thomas Davie-Martin, Cleo L. Simin, Tihomir Guenther, Alex Pirk, Norbert Rinne, Janne Rinnan, Riikka |
spellingShingle |
Seco, Roger Holst, Thomas Davie-Martin, Cleo L. Simin, Tihomir Guenther, Alex Pirk, Norbert Rinne, Janne Rinnan, Riikka Strong isoprene emission response to temperature in tundra vegetation |
author_facet |
Seco, Roger Holst, Thomas Davie-Martin, Cleo L. Simin, Tihomir Guenther, Alex Pirk, Norbert Rinne, Janne Rinnan, Riikka |
author_sort |
Seco, Roger |
title |
Strong isoprene emission response to temperature in tundra vegetation |
title_short |
Strong isoprene emission response to temperature in tundra vegetation |
title_full |
Strong isoprene emission response to temperature in tundra vegetation |
title_fullStr |
Strong isoprene emission response to temperature in tundra vegetation |
title_full_unstemmed |
Strong isoprene emission response to temperature in tundra vegetation |
title_sort |
strong isoprene emission response to temperature in tundra vegetation |
publishDate |
2022 |
url |
https://curis.ku.dk/portal/da/publications/strong-isoprene-emission-response-to-temperature-in-tundra-vegetation(e345c7e7-df5a-4ee6-b68b-84e2baa961aa).html https://doi.org/10.1073/pnas.2118014119 https://curis.ku.dk/ws/files/320388975/pnas.2118014119.pdf |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Seco , R , Holst , T , Davie-Martin , C L , Simin , T , Guenther , A , Pirk , N , Rinne , J & Rinnan , R 2022 , ' Strong isoprene emission response to temperature in tundra vegetation ' , PNAS , vol. 119 , no. 38 , e2118014119 . https://doi.org/10.1073/pnas.2118014119 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1073/pnas.2118014119 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
119 |
container_issue |
38 |
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1801382975470829568 |