HelbigWaddingtonAlekseychikEtAl2020

Référence

Helbig, M., Waddington, J.M., Alekseychik, P., Amiro, B.D., Aurela, M., Barr, A.G., Black, T.A., Blanken, P.D., Carey, S.K., Chen, J., Chi, J., Desai, A.R., Dunn, A., Euskirchen, E.S., Flanagan, L.B., Forbrich, I., Friborg, T., Grelle, A., Harder, S., Heliasz, M., Humphreys, E.R., Ikawa, H., Isabelle, P.-E., Iwata, H., Jassal, R., Korkiakoski, M., Kurbatova, J., Kutzbach, L., Lindroth, A., Löfvenius, M.O., Lohila, A., Mammarella, I., Marsh, P., Maximov, T., Melton, J.R., Moore, P.A., Nadeau, D.F., Nicholls, E.M., Nilsson, M.B., Ohta, T., Peichl, M., Petrone, R.M., Petrov, R., Prokushkin, A., Quinton, W.L., Reed, D.E., Roulet, N.T., Runkle, B.R.K., Sonnentag, O., Strachan, I.B., Taillardat, P., Tuittila, E.-S., Tuovinen, J.-P., Turner, J., Ueyama, M., Varlagin, A., Wilmking, M., Wofsy, S.C., Zyrianov, V. (2020) Increasing contribution of peatlands to boreal evapotranspiration in a warming climate. Nature Climate Change, 10(6):555-560. (Scopus )

Résumé

The response of evapotranspiration (ET) to warming is of critical importance to the water and carbon cycle of the boreal biome, a mosaic of land cover types dominated by forests and peatlands. The effect of warming-induced vapour pressure deficit (VPD) increases on boreal ET remains poorly understood because peatlands are not specifically represented as plant functional types in Earth system models. Here we show that peatland ET increases more than forest ET with increasing VPD using observations from 95 eddy covariance tower sites. At high VPD of more than 2 kPa, peatland ET exceeds forest ET by up to 30%. Future (2091–2100) mid-growing season peatland ET is estimated to exceed forest ET by over 20% in about one-third of the boreal biome for RCP4.5 and about two-thirds for RCP8.5. Peatland-specific ET responses to VPD should therefore be included in Earth system models to avoid biases in water and carbon cycle projections. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.

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@ARTICLE { HelbigWaddingtonAlekseychikEtAl2020,
    AUTHOR = { Helbig, M. and Waddington, J.M. and Alekseychik, P. and Amiro, B.D. and Aurela, M. and Barr, A.G. and Black, T.A. and Blanken, P.D. and Carey, S.K. and Chen, J. and Chi, J. and Desai, A.R. and Dunn, A. and Euskirchen, E.S. and Flanagan, L.B. and Forbrich, I. and Friborg, T. and Grelle, A. and Harder, S. and Heliasz, M. and Humphreys, E.R. and Ikawa, H. and Isabelle, P.-E. and Iwata, H. and Jassal, R. and Korkiakoski, M. and Kurbatova, J. and Kutzbach, L. and Lindroth, A. and Löfvenius, M.O. and Lohila, A. and Mammarella, I. and Marsh, P. and Maximov, T. and Melton, J.R. and Moore, P.A. and Nadeau, D.F. and Nicholls, E.M. and Nilsson, M.B. and Ohta, T. and Peichl, M. and Petrone, R.M. and Petrov, R. and Prokushkin, A. and Quinton, W.L. and Reed, D.E. and Roulet, N.T. and Runkle, B.R.K. and Sonnentag, O. and Strachan, I.B. and Taillardat, P. and Tuittila, E.-S. and Tuovinen, J.-P. and Turner, J. and Ueyama, M. and Varlagin, A. and Wilmking, M. and Wofsy, S.C. and Zyrianov, V. },
    JOURNAL = { Nature Climate Change },
    TITLE = { Increasing contribution of peatlands to boreal evapotranspiration in a warming climate },
    YEAR = { 2020 },
    NOTE = { cited By 1 },
    NUMBER = { 6 },
    PAGES = { 555-560 },
    VOLUME = { 10 },
    ABSTRACT = { The response of evapotranspiration (ET) to warming is of critical importance to the water and carbon cycle of the boreal biome, a mosaic of land cover types dominated by forests and peatlands. The effect of warming-induced vapour pressure deficit (VPD) increases on boreal ET remains poorly understood because peatlands are not specifically represented as plant functional types in Earth system models. Here we show that peatland ET increases more than forest ET with increasing VPD using observations from 95 eddy covariance tower sites. At high VPD of more than 2 kPa, peatland ET exceeds forest ET by up to 30%. Future (2091–2100) mid-growing season peatland ET is estimated to exceed forest ET by over 20% in about one-third of the boreal biome for RCP4.5 and about two-thirds for RCP8.5. Peatland-specific ET responses to VPD should therefore be included in Earth system models to avoid biases in water and carbon cycle projections. © 2020, The Author(s), under exclusive licence to Springer Nature Limited. },
    AFFILIATION = { School of Geography and Earth Sciences, McMaster University, Hamilton, ON, Canada; Department of Physics, University of Helsinki, Helsinki, Finland; Natural Resources Institute Finland (LUKE), Helsinki, Finland; Department of Soil Science, University of Manitoba, Winnipeg, MB, Canada; Finnish Meteorological Institute, Helsinki, Finland; Climate Research Division, Environment and Climate Change Canada, Saskatoon, SK, Canada; Global Institute for Water Security, University of Saskatchewan, Saskatoon, SK, Canada; Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada; Department of Geography, University of Colorado, Boulder, CO, United States; Department of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, MI, United States; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umea, Sweden; Department of Atmospheric and Oceanic Sciences, University of Wisconsin–Madison, Madison, WI, United States; Department of Earth, Environment, and Physics, Worcester State University, Worcester, MA, United States; Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, United States; Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada; The Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA, United States; Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark; Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden; Department of Geography, McGill University, Montréal, QC, Canada; Centre for Environmental and Climate Research, Lund University, Lund, Sweden; Department of Geography and Environmental Studies, Carleton University, Ottawa, ON, Canada; Institute for Agro-Environmental Sciences National Agriculture and Food Research Organization, Tsukuba, Japan; Département de Génie Civil et de Génie des Eaux, Université Laval, Québec City, QC, Canada; Department of Environmental Science, Shinshu University, Matsumoto, Japan; A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russian Federation; Institute of Soil Science, University of Hamburg, Hamburg, Germany; Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden; Cold Regions Research Centre, Wilfrid Laurier University, Waterloo, ON, Canada; Institute for Biological Problems of Cryolithozone, Siberian Branch of the Russian Academy of Sciences, Yakutsk, Russian Federation; Climate Research Division, Environment and Climate Change Canada, Victoria, BC, Canada; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan; Department of Geography and Environmental Management, University of Waterloo, Waterloo, ON, Canada; V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation; Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR, United States; Département de Géographie and Centre d’Études Nordiques, Université de Montréal, Montréal, QC, Canada; Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC, Canada; Université du Québec à Montréal—Geotop, Montréal, QC, Canada; School of Forest Sciences, University of Eastern Finland, Joensuu, Finland; Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Japan; Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany; Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, United States; Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, Canada },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1038/s41558-020-0763-7 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084517478&doi=10.1038%2fs41558-020-0763-7&partnerID=40&md5=2f60b2ee75cc5af922ae2671c27b4866 },
}

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