TianYangXuEtAl2019

Reference

Tian, H., Yang, J., Xu, R., Lu, C., Canadell, J.G., Davidson, E.A., Jackson, R.B., Arneth, A., Chang, J., Ciais, P., Gerber, S., Ito, A., Joos, F., Lienert, S., Messina, P., Olin, S., Pan, S., Peng, C., Saikawa, E., Thompson, R.L., Vuichard, N., Winiwarter, W., Zaehle, S. and Zhang, B. (2019) Global soil nitrous oxide emissions since the preindustrial era estimated by an ensemble of terrestrial biosphere models: Magnitude, attribution, and uncertainty. Global Change Biology, 25(2):640-659. (Scopus )

Abstract

Our understanding and quantification of global soil nitrous oxide (N2O) emissions and the underlying processes remain largely uncertain. Here, we assessed the effects of multiple anthropogenic and natural factors, including nitrogen fertilizer (N) application, atmospheric N deposition, manure N application, land cover change, climate change, and rising atmospheric CO2 concentration, on global soil N2O emissions for the period 1861–2016 using a standard simulation protocol with seven process-based terrestrial biosphere models. Results suggest global soil N2O emissions have increased from 6.3 ± 1.1 Tg N2O-N/year in the preindustrial period (the 1860s) to 10.0 ± 2.0 Tg N2O-N/year in the recent decade (2007–2016). Cropland soil emissions increased from 0.3 Tg N2O-N/year to 3.3 Tg N2O-N/year over the same period, accounting for 82% of the total increase. Regionally, China, South Asia, and Southeast Asia underwent rapid increases in cropland N2O emissions since the 1970s. However, US cropland N2O emissions had been relatively flat in magnitude since the 1980s, and EU cropland N2O emissions appear to have decreased by 14%. Soil N2O emissions from predominantly natural ecosystems accounted for 67% of the global soil emissions in the recent decade but showed only a relatively small increase of 0.7 ± 0.5 Tg N2O-N/year (11%) since the 1860s. In the recent decade, N fertilizer application, N deposition, manure N application, and climate change contributed 54%, 26%, 15%, and 24%, respectively, to the total increase. Rising atmospheric CO2 concentration reduced soil N2O emissions by 10% through the enhanced plant N uptake, while land cover change played a minor role. Our estimation here does not account for indirect emissions from soils and the directed emissions from excreta of grazing livestock. To address uncertainties in estimating regional and global soil N2O emissions, this study recommends several critical strategies for improving the process-based simulations. © 2018 John Wiley & Sons Ltd

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@ARTICLE { TianYangXuEtAl2019,
    AUTHOR = { Tian, H. and Yang, J. and Xu, R. and Lu, C. and Canadell, J.G. and Davidson, E.A. and Jackson, R.B. and Arneth, A. and Chang, J. and Ciais, P. and Gerber, S. and Ito, A. and Joos, F. and Lienert, S. and Messina, P. and Olin, S. and Pan, S. and Peng, C. and Saikawa, E. and Thompson, R.L. and Vuichard, N. and Winiwarter, W. and Zaehle, S. and Zhang, B. },
    TITLE = { Global soil nitrous oxide emissions since the preindustrial era estimated by an ensemble of terrestrial biosphere models: Magnitude, attribution, and uncertainty },
    JOURNAL = { Global Change Biology },
    YEAR = { 2019 },
    VOLUME = { 25 },
    NUMBER = { 2 },
    PAGES = { 640-659 },
    NOTE = { cited By 0 },
    ABSTRACT = { Our understanding and quantification of global soil nitrous oxide (N2O) emissions and the underlying processes remain largely uncertain. Here, we assessed the effects of multiple anthropogenic and natural factors, including nitrogen fertilizer (N) application, atmospheric N deposition, manure N application, land cover change, climate change, and rising atmospheric CO2 concentration, on global soil N2O emissions for the period 1861–2016 using a standard simulation protocol with seven process-based terrestrial biosphere models. Results suggest global soil N2O emissions have increased from 6.3 ± 1.1 Tg N2O-N/year in the preindustrial period (the 1860s) to 10.0 ± 2.0 Tg N2O-N/year in the recent decade (2007–2016). Cropland soil emissions increased from 0.3 Tg N2O-N/year to 3.3 Tg N2O-N/year over the same period, accounting for 82% of the total increase. Regionally, China, South Asia, and Southeast Asia underwent rapid increases in cropland N2O emissions since the 1970s. However, US cropland N2O emissions had been relatively flat in magnitude since the 1980s, and EU cropland N2O emissions appear to have decreased by 14%. Soil N2O emissions from predominantly natural ecosystems accounted for 67% of the global soil emissions in the recent decade but showed only a relatively small increase of 0.7 ± 0.5 Tg N2O-N/year (11%) since the 1860s. In the recent decade, N fertilizer application, N deposition, manure N application, and climate change contributed 54%, 26%, 15%, and 24%, respectively, to the total increase. Rising atmospheric CO2 concentration reduced soil N2O emissions by 10% through the enhanced plant N uptake, while land cover change played a minor role. Our estimation here does not account for indirect emissions from soils and the directed emissions from excreta of grazing livestock. To address uncertainties in estimating regional and global soil N2O emissions, this study recommends several critical strategies for improving the process-based simulations. © 2018 John Wiley & Sons Ltd },
    AFFILIATION = { International Center for Climate and Global Change Research, School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL, United States; Research Center for Eco-Environmental Sciences, State Key Laboratory of Urban and Regional Ecology, Chinese Academy of Sciences, Beijing, China; Department of Forestry, Mississippi State University, Mississippi State, MS, United States; Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA, United States; Global Carbon Project, CSIRO Oceans and Atmosphere, Canberra, Australia; Appalachian Laboratory, University of Maryland Center for Environmental Science, Frostburg, MD, United States; Department of Earth System Science, Woods Institute for the Environment, Stanford University, Stanford, CA, United States; Precourt Institute for Energy, Stanford University, Stanford, CA, United States; Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research/Atmospheric Environmental Research, Garmisch-Partenkirchen, Germany; Laboratoire des Sciences du Climat et de l'Environnement, LSCE, Gif sur Yvette, France; IFAS, Soil and Water Sciences Department, University of Florida, Gainesville, FL, United States; Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, Japan; Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland; Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland; Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden; Department of Biology Sciences, University of Quebec at Montreal (UQAM), Montréal, QC, Canada; Department of Environmental Sciences, Emory University, Atlanta, Georgia; Norsk Institutt for Luftforskning - NILU, Kjeller, Norway; Air Quality and Greenhouse Gases (AIR), International Institute for Applied Systems Analysis, Laxenburg, Austria; The Institute of Environmental Engineering, University of Zielona Gora, Zielona Gora, Poland; Max Planck Institut für Biogeochemie, Jena, Germany; Centre d'Enseignement et de Recherche en Environnement Atmosphérique, CEREA, Marne la Vallée, France },
    AUTHOR_KEYWORDS = { global nitrogen cycle; greenhouse gas emission; nitrous oxide; process-based modeling; soil N2O emission },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1111/gcb.14514 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058677594&doi=10.1111%2fgcb.14514&partnerID=40&md5=ebb1a89802a25b2cfdcd80c8cf532c09 },
}

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