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Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment

Author

Listed:
  • Anthony P. Walker

    (Oak Ridge National Laboratory)

  • Martin G. De Kauwe

    (University of New South Wales)

  • Belinda E. Medlyn

    (Western Sydney University)

  • Sönke Zaehle

    (Max Planck Institute for Biogeochemistry)

  • Colleen M. Iversen

    (Oak Ridge National Laboratory)

  • Shinichi Asao

    (Colorado State University)

  • Bertrand Guenet

    (Université Paris-Saclay)

  • Anna Harper

    (University of Exeter)

  • Thomas Hickler

    (Senckenberg Biodiversity and Climate Research Centre (BiK-F)
    Goethe-University)

  • Bruce A. Hungate

    (Northern Arizona University)

  • Atul K. Jain

    (University of Illinois)

  • Yiqi Luo

    (Northern Arizona University)

  • Xingjie Lu

    (CSIRO Oceans and Atmosphere)

  • Meng Lu

    (Yunnan University
    Smithsonian Environmental Research Center)

  • Kristina Luus

    (Dublin Institute of Technology)

  • J. Patrick Megonigal

    (Smithsonian Environmental Research Center)

  • Ram Oren

    (Duke University
    University of Helsinki)

  • Edmund Ryan

    (University of Manchester)

  • Shijie Shu

    (University of Illinois)

  • Alan Talhelm

    (University of Idaho)

  • Ying-Ping Wang

    (CSIRO Oceans and Atmosphere)

  • Jeffrey M. Warren

    (Oak Ridge National Laboratory)

  • Christian Werner

    (Senckenberg Biodiversity and Climate Research Centre (BiK-F))

  • Jianyang Xia

    (East China Normal University
    Institute of Eco-Chongming (IEC))

  • Bai Yang

    (Oak Ridge National Laboratory)

  • Donald R. Zak

    (University of Michigan)

  • Richard J. Norby

    (Oak Ridge National Laboratory)

Abstract

Increasing atmospheric CO2 stimulates photosynthesis which can increase net primary production (NPP), but at longer timescales may not necessarily increase plant biomass. Here we analyse the four decade-long CO2-enrichment experiments in woody ecosystems that measured total NPP and biomass. CO2 enrichment increased biomass increment by 1.05 ± 0.26 kg C m−2 over a full decade, a 29.1 ± 11.7% stimulation of biomass gain in these early-secondary-succession temperate ecosystems. This response is predictable by combining the CO2 response of NPP (0.16 ± 0.03 kg C m−2 y−1) and the CO2-independent, linear slope between biomass increment and cumulative NPP (0.55 ± 0.17). An ensemble of terrestrial ecosystem models fail to predict both terms correctly. Allocation to wood was a driver of across-site, and across-model, response variability and together with CO2-independence of biomass retention highlights the value of understanding drivers of wood allocation under ambient conditions to correctly interpret and predict CO2 responses.

Suggested Citation

  • Anthony P. Walker & Martin G. De Kauwe & Belinda E. Medlyn & Sönke Zaehle & Colleen M. Iversen & Shinichi Asao & Bertrand Guenet & Anna Harper & Thomas Hickler & Bruce A. Hungate & Atul K. Jain & Yiqi, 2019. "Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment," Nature Communications, Nature, vol. 10(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08348-1
    DOI: 10.1038/s41467-019-08348-1
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    Cited by:

    1. Joan P. Casas-Ruiz & Pascal Bodmer & Kelly Ann Bona & David Butman & Mathilde Couturier & Erik J. S. Emilson & Kerri Finlay & Hélène Genet & Daniel Hayes & Jan Karlsson & David Paré & Changhui Peng & , 2023. "Integrating terrestrial and aquatic ecosystems to constrain estimates of land-atmosphere carbon exchange," Nature Communications, Nature, vol. 14(1), pages 1-17, December.

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