Contrasting effects of CO2 fertilization, land-use change and warming on seasonal amplitude of Northern Hemisphere CO2 exchange

Ana Bastos; Philippe Ciais; Frédéric Chevallier; Christian Rödenbeck; Ashley P. Ballantyne; Fabienne Maignan; Yi Yin; Marcos Fernández-Martínez; Pierre Friedlingstein; Josep Peñuelas; Shilong L. Piao; Stephen Sitch; William K. Smith; Xuhui Wang; Zaichun Zhu; Vanessa Haverd; Etsushi Kato; Atul K. Jain; Sebastian Lienert; Danica Lombardozzi; Julia E.M.S. Nabel; Philippe Peylin; Benjamin Poulter; Dan Zhu

doi:10.5194/acp-19-12361-2019

Contrasting effects of CO₂ fertilization, land-use change and warming on seasonal amplitude of Northern Hemisphere CO₂ exchange

Ana Bastos
, Philippe Ciais
, Frédéric Chevallier
, Christian Rödenbeck
, Ashley P. Ballantyne
, Fabienne Maignan
, Yi Yin
, Marcos Fernández-Martínez
, Pierre Friedlingstein
, Josep Peñuelas
, Shilong L. Piao
, Stephen Sitch
, William K. Smith
, Xuhui Wang
, Zaichun Zhu
, Vanessa Haverd
, Etsushi Kato
, Atul K. Jain
, Sebastian Lienert
, Danica Lombardozzi

Julia E.M.S. Nabel, Philippe Peylin, Benjamin Poulter, Dan Zhu

Ecosystem and Conservation Sciences

Ludwig Maximilian University of Munich
Université Paris-Saclay
Max Planck Institute for Biogeochemistry
California Institute of Technology
University of Antwerp
University of Exeter
CSIC
Centre de Recerca Ecològica i Aplicacions Forestals (CREAF)
Peking University
University of Arizona
CSIRO
The Institute of Applied Energy
University of Illinois at Urbana-Champaign
University of Bern
National Center for Atmospheric Research
Max Planck Institute for Meteorology
NASA Goddard Space Flight Center

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

Continuous atmospheric CO₂ monitoring data indicate an increase in the amplitude of seasonal CO₂-cycle exchange (SCA_NBP) in northern high latitudes. The major drivers of enhanced SCA_NBP remain unclear and intensely debated, with land-use change, CO₂ fertilization and warming being identified as likely contributors. We integrated CO₂-flux data from two atmospheric inversions (consistent with atmospheric records) and from 11 state-of-the-art land-surface models (LSMs) to evaluate the relative importance of individual contributors to trends and drivers of the SCA_NBP of CO₂ fluxes for 1980-2015. The LSMs generally reproduce the latitudinal increase in SCA_NBP trends within the inversions range. Inversions and LSMs attribute SCA_NBP increase to boreal Asia and Europe due to enhanced vegetation productivity (in LSMs) and point to contrasting effects of CO₂ fertilization (positive) and warming (negative) on SCA_NBP. Our results do not support land-use change as a key contributor to the increase in SCA_NBP. The sensitivity of simulated microbial respiration to temperature in LSMs explained biases in SCA_NBP trends, which suggests that SCA_NBP could help to constrain model turnover times.

Original language	English
Article number	652
Pages (from-to)	12361-12375
Number of pages	15
Journal	Atmospheric Chemistry and Physics
Volume	19
Issue number	19
DOIs	https://doi.org/10.5194/acp-19-12361-2019
State	Published - Oct 7 2019

Funding

Acknowledgements. This work was partly supported by the European Space Agency Climate Change Initiative (ESA-CCI) RECCAP-2 project (ESRIN/ 4000123002/18/I-NB). Mar-cos Fernández-Martinez is a postdoctoral fellow of the Research Foundation – Flanders (FWO). Vanessa Haverd acknowledges support from the Earth Systems and Climate Change Hub, funded by the Australian government’s National Environmental Science Program. This work was partly supported by the European Space Agency Climate Change Initiative (ESACCI) RECCAP-2 project (ESRIN/ 4000123002/18/I-NB). Marcos Fern?ndez-Martinez is a postdoctoral fellow of the Research Foundation - Flanders (FWO). Vanessa Haverd acknowledges support from the Earth Systems and Climate Change Hub, funded by the Australian government's National Environmental Science Program.

Funder number
ESRIN/ 4000123002/18/I-NB

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 15 Life on Land

Access to Document

10.5194/acp-19-12361-2019

Cite this

Bastos, A., Ciais, P., Chevallier, F., Rödenbeck, C., Ballantyne, A. P., Maignan, F., Yin, Y., Fernández-Martínez, M., Friedlingstein, P., Peñuelas, J., Piao, S. L., Sitch, S., Smith, W. K., Wang, X., Zhu, Z., Haverd, V., Kato, E., Jain, A. K., Lienert, S., ... Zhu, D. (2019). Contrasting effects of CO₂ fertilization, land-use change and warming on seasonal amplitude of Northern Hemisphere CO₂ exchange. Atmospheric Chemistry and Physics, 19(19), 12361-12375. Article 652. https://doi.org/10.5194/acp-19-12361-2019

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title = "Contrasting effects of CO2 fertilization, land-use change and warming on seasonal amplitude of Northern Hemisphere CO2 exchange",

abstract = "Continuous atmospheric CO2 monitoring data indicate an increase in the amplitude of seasonal CO2-cycle exchange (SCANBP) in northern high latitudes. The major drivers of enhanced SCANBP remain unclear and intensely debated, with land-use change, CO2 fertilization and warming being identified as likely contributors. We integrated CO2-flux data from two atmospheric inversions (consistent with atmospheric records) and from 11 state-of-the-art land-surface models (LSMs) to evaluate the relative importance of individual contributors to trends and drivers of the SCANBP of CO2 fluxes for 1980-2015. The LSMs generally reproduce the latitudinal increase in SCANBP trends within the inversions range. Inversions and LSMs attribute SCANBP increase to boreal Asia and Europe due to enhanced vegetation productivity (in LSMs) and point to contrasting effects of CO2 fertilization (positive) and warming (negative) on SCANBP. Our results do not support land-use change as a key contributor to the increase in SCANBP. The sensitivity of simulated microbial respiration to temperature in LSMs explained biases in SCANBP trends, which suggests that SCANBP could help to constrain model turnover times.",

author = "Ana Bastos and Philippe Ciais and Fr{\'e}d{\'e}ric Chevallier and Christian R{\"o}denbeck and Ballantyne, \{Ashley P.\} and Fabienne Maignan and Yi Yin and Marcos Fern{\'a}ndez-Mart{\'i}nez and Pierre Friedlingstein and Josep Pe{\~n}uelas and Piao, \{Shilong L.\} and Stephen Sitch and Smith, \{William K.\} and Xuhui Wang and Zaichun Zhu and Vanessa Haverd and Etsushi Kato and Jain, \{Atul K.\} and Sebastian Lienert and Danica Lombardozzi and Nabel, \{Julia E.M.S.\} and Philippe Peylin and Benjamin Poulter and Dan Zhu",

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Bastos, A, Ciais, P, Chevallier, F, Rödenbeck, C, Ballantyne, AP, Maignan, F, Yin, Y, Fernández-Martínez, M, Friedlingstein, P, Peñuelas, J, Piao, SL, Sitch, S, Smith, WK, Wang, X, Zhu, Z, Haverd, V, Kato, E, Jain, AK, Lienert, S, Lombardozzi, D, Nabel, JEMS, Peylin, P, Poulter, B & Zhu, D 2019, 'Contrasting effects of CO₂ fertilization, land-use change and warming on seasonal amplitude of Northern Hemisphere CO₂ exchange', Atmospheric Chemistry and Physics, vol. 19, no. 19, 652, pp. 12361-12375. https://doi.org/10.5194/acp-19-12361-2019

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T1 - Contrasting effects of CO2 fertilization, land-use change and warming on seasonal amplitude of Northern Hemisphere CO2 exchange

AU - Bastos, Ana

AU - Ciais, Philippe

AU - Chevallier, Frédéric

AU - Rödenbeck, Christian

AU - Ballantyne, Ashley P.

AU - Maignan, Fabienne

AU - Yin, Yi

AU - Fernández-Martínez, Marcos

AU - Friedlingstein, Pierre

AU - Peñuelas, Josep

AU - Piao, Shilong L.

AU - Sitch, Stephen

AU - Smith, William K.

AU - Wang, Xuhui

AU - Zhu, Zaichun

AU - Haverd, Vanessa

AU - Kato, Etsushi

AU - Jain, Atul K.

AU - Lienert, Sebastian

AU - Lombardozzi, Danica

AU - Nabel, Julia E.M.S.

AU - Peylin, Philippe

AU - Poulter, Benjamin

AU - Zhu, Dan

PY - 2019/10/7

Y1 - 2019/10/7

N2 - Continuous atmospheric CO2 monitoring data indicate an increase in the amplitude of seasonal CO2-cycle exchange (SCANBP) in northern high latitudes. The major drivers of enhanced SCANBP remain unclear and intensely debated, with land-use change, CO2 fertilization and warming being identified as likely contributors. We integrated CO2-flux data from two atmospheric inversions (consistent with atmospheric records) and from 11 state-of-the-art land-surface models (LSMs) to evaluate the relative importance of individual contributors to trends and drivers of the SCANBP of CO2 fluxes for 1980-2015. The LSMs generally reproduce the latitudinal increase in SCANBP trends within the inversions range. Inversions and LSMs attribute SCANBP increase to boreal Asia and Europe due to enhanced vegetation productivity (in LSMs) and point to contrasting effects of CO2 fertilization (positive) and warming (negative) on SCANBP. Our results do not support land-use change as a key contributor to the increase in SCANBP. The sensitivity of simulated microbial respiration to temperature in LSMs explained biases in SCANBP trends, which suggests that SCANBP could help to constrain model turnover times.

AB - Continuous atmospheric CO2 monitoring data indicate an increase in the amplitude of seasonal CO2-cycle exchange (SCANBP) in northern high latitudes. The major drivers of enhanced SCANBP remain unclear and intensely debated, with land-use change, CO2 fertilization and warming being identified as likely contributors. We integrated CO2-flux data from two atmospheric inversions (consistent with atmospheric records) and from 11 state-of-the-art land-surface models (LSMs) to evaluate the relative importance of individual contributors to trends and drivers of the SCANBP of CO2 fluxes for 1980-2015. The LSMs generally reproduce the latitudinal increase in SCANBP trends within the inversions range. Inversions and LSMs attribute SCANBP increase to boreal Asia and Europe due to enhanced vegetation productivity (in LSMs) and point to contrasting effects of CO2 fertilization (positive) and warming (negative) on SCANBP. Our results do not support land-use change as a key contributor to the increase in SCANBP. The sensitivity of simulated microbial respiration to temperature in LSMs explained biases in SCANBP trends, which suggests that SCANBP could help to constrain model turnover times.

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