High temperature sensitivity of Arctic isoprene emissions explained by sedges.
It has been widely reported that isoprene emissions from the Arctic ecosystem have a strong temperature response. Here we identify sedges (Carex spp. and Eriophorum spp.) as key contributors to this high sensitivity using plant chamber experiments. We observe that sedges exhibit a markedly stronger...
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2024
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Online Access: | https://escholarship.org/uc/item/4g37x4w3 https://escholarship.org/content/qt4g37x4w3/qt4g37x4w3.pdf https://doi.org/10.1038/s41467-024-49960-0 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt4g37x4w3 2024-09-15T18:04:54+00:00 High temperature sensitivity of Arctic isoprene emissions explained by sedges. Wang, Hui Welch, Allison Nagalingam, Sanjeevi Leong, Christopher Czimczik, Claudia Tang, Jing Seco, Roger Rinnan, Riikka Vettikkat, Lejish Schobesberger, Siegfried Holst, Thomas Brijesh, Shobhit Sheesley, Rebecca Barsanti, Kelley Guenther, Alex 2024-07-21 application/pdf https://escholarship.org/uc/item/4g37x4w3 https://escholarship.org/content/qt4g37x4w3/qt4g37x4w3.pdf https://doi.org/10.1038/s41467-024-49960-0 unknown eScholarship, University of California qt4g37x4w3 https://escholarship.org/uc/item/4g37x4w3 https://escholarship.org/content/qt4g37x4w3/qt4g37x4w3.pdf doi:10.1038/s41467-024-49960-0 public Nature Communications, vol 15, iss 1 article 2024 ftcdlib https://doi.org/10.1038/s41467-024-49960-0 2024-08-15T23:46:56Z It has been widely reported that isoprene emissions from the Arctic ecosystem have a strong temperature response. Here we identify sedges (Carex spp. and Eriophorum spp.) as key contributors to this high sensitivity using plant chamber experiments. We observe that sedges exhibit a markedly stronger temperature response compared to that of other isoprene emitters and predictions by the widely accepted isoprene emission model, the Model of Emissions of Gases and Aerosols from Nature (MEGAN). MEGAN is able to reproduce eddy-covariance flux observations at three high-latitude sites by integrating our findings. Furthermore, the omission of the strong temperature responses of Arctic isoprene emitters causes a 20% underestimation of isoprene emissions for the high-latitude regions of the Northern Hemisphere during 2000-2009 in the Community Land Model with the MEGAN scheme. We also find that the existing model had underestimated the long-term trend of isoprene emissions from 1960 to 2009 by 55% for the high-latitude regions. Article in Journal/Newspaper Eriophorum University of California: eScholarship Nature Communications 15 1 |
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description |
It has been widely reported that isoprene emissions from the Arctic ecosystem have a strong temperature response. Here we identify sedges (Carex spp. and Eriophorum spp.) as key contributors to this high sensitivity using plant chamber experiments. We observe that sedges exhibit a markedly stronger temperature response compared to that of other isoprene emitters and predictions by the widely accepted isoprene emission model, the Model of Emissions of Gases and Aerosols from Nature (MEGAN). MEGAN is able to reproduce eddy-covariance flux observations at three high-latitude sites by integrating our findings. Furthermore, the omission of the strong temperature responses of Arctic isoprene emitters causes a 20% underestimation of isoprene emissions for the high-latitude regions of the Northern Hemisphere during 2000-2009 in the Community Land Model with the MEGAN scheme. We also find that the existing model had underestimated the long-term trend of isoprene emissions from 1960 to 2009 by 55% for the high-latitude regions. |
format |
Article in Journal/Newspaper |
author |
Wang, Hui Welch, Allison Nagalingam, Sanjeevi Leong, Christopher Czimczik, Claudia Tang, Jing Seco, Roger Rinnan, Riikka Vettikkat, Lejish Schobesberger, Siegfried Holst, Thomas Brijesh, Shobhit Sheesley, Rebecca Barsanti, Kelley Guenther, Alex |
spellingShingle |
Wang, Hui Welch, Allison Nagalingam, Sanjeevi Leong, Christopher Czimczik, Claudia Tang, Jing Seco, Roger Rinnan, Riikka Vettikkat, Lejish Schobesberger, Siegfried Holst, Thomas Brijesh, Shobhit Sheesley, Rebecca Barsanti, Kelley Guenther, Alex High temperature sensitivity of Arctic isoprene emissions explained by sedges. |
author_facet |
Wang, Hui Welch, Allison Nagalingam, Sanjeevi Leong, Christopher Czimczik, Claudia Tang, Jing Seco, Roger Rinnan, Riikka Vettikkat, Lejish Schobesberger, Siegfried Holst, Thomas Brijesh, Shobhit Sheesley, Rebecca Barsanti, Kelley Guenther, Alex |
author_sort |
Wang, Hui |
title |
High temperature sensitivity of Arctic isoprene emissions explained by sedges. |
title_short |
High temperature sensitivity of Arctic isoprene emissions explained by sedges. |
title_full |
High temperature sensitivity of Arctic isoprene emissions explained by sedges. |
title_fullStr |
High temperature sensitivity of Arctic isoprene emissions explained by sedges. |
title_full_unstemmed |
High temperature sensitivity of Arctic isoprene emissions explained by sedges. |
title_sort |
high temperature sensitivity of arctic isoprene emissions explained by sedges. |
publisher |
eScholarship, University of California |
publishDate |
2024 |
url |
https://escholarship.org/uc/item/4g37x4w3 https://escholarship.org/content/qt4g37x4w3/qt4g37x4w3.pdf https://doi.org/10.1038/s41467-024-49960-0 |
genre |
Eriophorum |
genre_facet |
Eriophorum |
op_source |
Nature Communications, vol 15, iss 1 |
op_relation |
qt4g37x4w3 https://escholarship.org/uc/item/4g37x4w3 https://escholarship.org/content/qt4g37x4w3/qt4g37x4w3.pdf doi:10.1038/s41467-024-49960-0 |
op_rights |
public |
op_doi |
https://doi.org/10.1038/s41467-024-49960-0 |
container_title |
Nature Communications |
container_volume |
15 |
container_issue |
1 |
_version_ |
1810442503916093440 |