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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ftpubmed:oai:pubmedcentral.nih.gov:9499559 2023-05-15T18:39:56+02:00 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 2022-09-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9499559/ http://www.ncbi.nlm.nih.gov/pubmed/36095176 https://doi.org/10.1073/pnas.2118014119 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9499559/ http://www.ncbi.nlm.nih.gov/pubmed/36095176 http://dx.doi.org/10.1073/pnas.2118014119 Copyright © 2022 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . Proc Natl Acad Sci U S A Physical Sciences Text 2022 ftpubmed https://doi.org/10.1073/pnas.2118014119 2023-03-19T01:36:41Z 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 Q(10) (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 Q(10) 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. Text Tundra PubMed Central (PMC) Proceedings of the National Academy of Sciences 119 38 |
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English |
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Physical Sciences |
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Physical Sciences 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 |
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Physical Sciences |
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 Q(10) (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 Q(10) 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 |
Text |
author |
Seco, Roger Holst, Thomas Davie-Martin, Cleo L. Simin, Tihomir Guenther, Alex Pirk, Norbert Rinne, Janne Rinnan, Riikka |
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 |
publisher |
National Academy of Sciences |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9499559/ http://www.ncbi.nlm.nih.gov/pubmed/36095176 https://doi.org/10.1073/pnas.2118014119 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Proc Natl Acad Sci U S A |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9499559/ http://www.ncbi.nlm.nih.gov/pubmed/36095176 http://dx.doi.org/10.1073/pnas.2118014119 |
op_rights |
Copyright © 2022 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
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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1766228984668880896 |