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High temperature sensitivity of Arctic isoprene emissions explained by sedges

Author

Listed:
  • Hui Wang

    (University of California)

  • Allison M. Welch

    (University of California)

  • Sanjeevi Nagalingam

    (University of California)

  • Christopher Leong

    (University of California)

  • Claudia I. Czimczik

    (University of California)

  • Jing Tang

    (University of Copenhagen)

  • Roger Seco

    (Institute of Environmental Assessment and Water Research (IDAEA-CSIC))

  • Riikka Rinnan

    (University of Copenhagen)

  • Lejish Vettikkat

    (University of Eastern Finland)

  • Siegfried Schobesberger

    (University of Eastern Finland)

  • Thomas Holst

    (Lund University)

  • Shobhit Brijesh

    (University of California)

  • Rebecca J. Sheesley

    (Baylor University)

  • Kelley C. Barsanti

    (University of California Riverside
    National Center for Atmospheric Research)

  • Alex B. Guenther

    (University of California)

Abstract

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.

Suggested Citation

  • Hui Wang & Allison M. Welch & Sanjeevi Nagalingam & Christopher Leong & Claudia I. Czimczik & Jing Tang & Roger Seco & Riikka Rinnan & Lejish Vettikkat & Siegfried Schobesberger & Thomas Holst & Shobh, 2024. "High temperature sensitivity of Arctic isoprene emissions explained by sedges," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49960-0
    DOI: 10.1038/s41467-024-49960-0
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    References listed on IDEAS

    as
    1. James Weber & Scott Archer-Nicholls & Nathan Luke Abraham & Youngsub Matthew Shin & Paul Griffiths & Daniel P. Grosvenor & Catherine E. Scott & Alex T. Archibald, 2022. "Chemistry-driven changes strongly influence climate forcing from vegetation emissions," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Gordon McFiggans & Thomas F. Mentel & Jürgen Wildt & Iida Pullinen & Sungah Kang & Einhard Kleist & Sebastian Schmitt & Monika Springer & Ralf Tillmann & Cheng Wu & Defeng Zhao & Mattias Hallquist & , 2019. "Secondary organic aerosol reduced by mixture of atmospheric vapours," Nature, Nature, vol. 565(7741), pages 587-593, January.
    3. Logan T. Berner & Richard Massey & Patrick Jantz & Bruce C. Forbes & Marc Macias-Fauria & Isla Myers-Smith & Timo Kumpula & Gilles Gauthier & Laia Andreu-Hayles & Benjamin V. Gaglioti & Patrick Burns , 2020. "Summer warming explains widespread but not uniform greening in the Arctic tundra biome," Nature Communications, Nature, vol. 11(1), pages 1-12, December.
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