LiuPiaoGasserEtAl2019

Reference

Liu, Y., Piao, S., Gasser, T., Ciais, P., Yang, H., Wang, H., Keenan, T.F., Huang, M., Wan, S., Song, J., Wang, K., Janssens, I.A., Peñuelas, J., Huntingford, C., Wang, X., Altaf Arain, M., Fang, Y., Fisher, J.B., Huang, M., Huntzinger, D.N., Ito, A., Jain, A.K., Mao, J., Michalak, A.M., Peng, C., Poulter, B., Schwalm, C., Shi, X., Tian, H., Wei, Y., Zeng, N., Zhu, Q., Wang, T. (2019) Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO2 fertilization. Nature Geoscience, 12(10):809-814. (Scopus )

Abstract

Clarifying how increased atmospheric CO2 concentration (eCO2) contributes to accelerated land carbon sequestration remains important since this process is the largest negative feedback in the coupled carbon–climate system. Here, we constrain the sensitivity of the terrestrial carbon sink to eCO2 over the temperate Northern Hemisphere for the past five decades, using 12 terrestrial ecosystem models and data from seven CO2 enrichment experiments. This constraint uses the heuristic finding that the northern temperate carbon sink sensitivity to eCO2 is linearly related to the site-scale sensitivity across the models. The emerging data-constrained eCO2 sensitivity is 0.64 ± 0.28 PgC yr−1 per hundred ppm of eCO2. Extrapolating worldwide, this northern temperate sensitivity projects the global terrestrial carbon sink to increase by 3.5 ± 1.9 PgC yr−1 for an increase in CO2 of 100 ppm. This value suggests that CO2 fertilization alone explains most of the observed increase in global land carbon sink since the 1960s. More CO2 enrichment experiments, particularly in boreal, arctic and tropical ecosystems, are required to explain further the responsible processes. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.

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@ARTICLE { LiuPiaoGasserEtAl2019,
    AUTHOR = { Liu, Y. and Piao, S. and Gasser, T. and Ciais, P. and Yang, H. and Wang, H. and Keenan, T.F. and Huang, M. and Wan, S. and Song, J. and Wang, K. and Janssens, I.A. and Peñuelas, J. and Huntingford, C. and Wang, X. and Altaf Arain, M. and Fang, Y. and Fisher, J.B. and Huang, M. and Huntzinger, D.N. and Ito, A. and Jain, A.K. and Mao, J. and Michalak, A.M. and Peng, C. and Poulter, B. and Schwalm, C. and Shi, X. and Tian, H. and Wei, Y. and Zeng, N. and Zhu, Q. and Wang, T. },
    TITLE = { Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO2 fertilization },
    JOURNAL = { Nature Geoscience },
    YEAR = { 2019 },
    VOLUME = { 12 },
    NUMBER = { 10 },
    PAGES = { 809-814 },
    NOTE = { cited By 0 },
    ABSTRACT = { Clarifying how increased atmospheric CO2 concentration (eCO2) contributes to accelerated land carbon sequestration remains important since this process is the largest negative feedback in the coupled carbon–climate system. Here, we constrain the sensitivity of the terrestrial carbon sink to eCO2 over the temperate Northern Hemisphere for the past five decades, using 12 terrestrial ecosystem models and data from seven CO2 enrichment experiments. This constraint uses the heuristic finding that the northern temperate carbon sink sensitivity to eCO2 is linearly related to the site-scale sensitivity across the models. The emerging data-constrained eCO2 sensitivity is 0.64 ± 0.28 PgC yr−1 per hundred ppm of eCO2. Extrapolating worldwide, this northern temperate sensitivity projects the global terrestrial carbon sink to increase by 3.5 ± 1.9 PgC yr−1 for an increase in CO2 of 100 ppm. This value suggests that CO2 fertilization alone explains most of the observed increase in global land carbon sink since the 1960s. More CO2 enrichment experiments, particularly in boreal, arctic and tropical ecosystems, are required to explain further the responsible processes. © 2019, The Author(s), under exclusive licence to Springer Nature Limited. },
    AFFILIATION = { Key Laboratory of Alpine Ecology, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China; International Institute for Applied Systems Analysis, Laxenburg, Austria; Laboratoire des Sciences du Climat et de l’Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France; Department of Earth System Science, Tsinghua University, Beijing, China; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Environmental Science, Policy and Management, UC Berkeley, Berkeley, CA, United States; College of Life Sciences, Hebei University, Baoding, Hebei, China; Department of Biology, University of Antwerp, Wilrijk, Belgium; CREAF, Cerdanyola del Valles, Barcelona, Catalonia, Spain; CSIC, Global Ecology Unit CREAF- CSIC-UAB, Bellaterra, Barcelona, Catalonia, Spain; Centre for Ecology and Hydrology, Wallingford, United Kingdom; School of Geography and Earth Sciences and McMaster Centre for Climate Change, McMaster University, Hamilton, ON, Canada; Department of Global Ecology, Carnegie Institution for Science, Stanford, CA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ, United States; National Institute for Environmental Studies, Tsukuba, Japan; Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Environmental Sciences Division and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, United States; Department of Biology Sciences, Institute of Environment Sciences, University of Quebec at Montreal, Montreal, QC, Canada; Laboratory for Ecological Forecasting and Global Change, College of Forestry, Northwest A&F University, Yangling, Shaanxi, China; NASA GSFC, Biospheric Sciences Lab., Greenbelt, MD, United States; Woods Hole Research Center, Falmouth, MA, United States; Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, United States; International Center for Climate and Global Change Research and School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL, United States; Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD, United States; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, China },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1038/s41561-019-0436-1 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072100723&doi=10.1038%2fs41561-019-0436-1&partnerID=40&md5=e07627af227fb294ec42aa941401cc4a },
}

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