globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2882
论文题名:
Historical carbon dioxide emissions caused by land-use changes are possibly larger than assumed
作者: Arneth A.; Sitch S.; Pongratz J.; Stocker B.D.; Ciais P.; Poulter B.; Bayer A.D.; Bondeau A.; Calle L.; Chini L.P.; Gasser T.; Fader M.; Friedlingstein P.; Kato E.; Li W.; Lindeskog M.; Nabel J.E.M.S.; Pugh T.A.M.; Robertson E.; Viovy N.; Yue C.; Zaehle S.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2017
卷: 10, 期:2
起始页码: 79
结束页码: 84
语种: 英语
Scopus关键词: biodiversity ; biogeochemical cycle ; biosphere ; carbon cycle ; carbon dioxide ; carbon emission ; carbon flux ; carbon sink ; land use change ; reforestation ; shifting cultivation ; terrestrial ecosystem
英文摘要: The terrestrial biosphere absorbs about 20% of fossil-fuel CO 2 emissions. The overall magnitude of this sink is constrained by the difference between emissions, the rate of increase in atmospheric CO 2 concentrations, and the ocean sink. However, the land sink is actually composed of two largely counteracting fluxes that are poorly quantified: fluxes from land-use change and CO 2 uptake by terrestrial ecosystems. Dynamic global vegetation model simulations suggest that CO 2 emissions from land-use change have been substantially underestimated because processes such as tree harvesting and land clearing from shifting cultivation have not been considered. As the overall terrestrial sink is constrained, a larger net flux as a result of land-use change implies that terrestrial uptake of CO 2 is also larger, and that terrestrial ecosystems might have greater potential to sequester carbon in the future. Consequently, reforestation projects and efforts to avoid further deforestation could represent important mitigation pathways, with co-benefits for biodiversity. It is unclear whether a larger land carbon sink can be reconciled with our current understanding of terrestrial carbon cycling. Our possible underestimation of the historical residual terrestrial carbon sink adds further uncertainty to our capacity to predict the future of terrestrial carbon uptake and losses. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/105856
Appears in Collections:气候减缓与适应
科学计划与规划

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作者单位: Karlsruhe Institute of Technology, Deptartment of Atmospheric Environmental Research, Kreuzeckbahnstraße 19, Garmisch-Partenkirchen, Germany; College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom; Max Planck Institute for Meteorology, Bundesstraße 53, Hamburg, Germany; Department of Life Sciences, Grantham Institute for Climate Change, Imperial College London, Silwood-Park-Ascot, United Kingdom; Institute for Atmospheric and Climate Science, ETH Zürich, Universitätstrasse 16, Zürich, Switzerland; IPSL - LSCE, CEA CNRS UVSQ, Centre D'Etudes Orme des Merisiers, Gif sur Yvette, France; NASA Goddard Space Flight Center, Biospheric Science Laboratory, Greenbelt, MD, United States; Institut Méditerranéen de Biodiversité et D'Ecologie Marine et Continentale, Aix-Marseille Université, CNRS, IRD, Avignon Université, Technopôle Arbois-Méditerranée, Bâtiment Villemin, BP 80, Aix-en-Provence Cedex 04, France; Department of Geographical Sciences, University of Maryland, College Park, MD, United States; International Centre for Water Resources and Global Change, German Federal Institute of Hydrology, Am Mainzer Tor 1, Koblenz, Germany; College of Engineering Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom; Institute of Applied Energy, Minato, Tokyo, Japan; Department of Physical Geography and Ecosystem Science, Lund University, Solvegatan 12, Lund, Sweden; School of Geography, Earth and Environmental Sciences and Birmingham, Institute of Forest Research, University of Birmingham, Birmingham, United Kingdom; Met Ofce Hadley Centre, FitzRoy Road, Exeter, United Kingdom; Max Planck Institute for Biogeochemistry, Hans-Knöll-Straße, Jena, Germany

Recommended Citation:
Arneth A.,Sitch S.,Pongratz J.,et al. Historical carbon dioxide emissions caused by land-use changes are possibly larger than assumed[J]. Nature Geoscience,2017-01-01,10(2)
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