Počet záznamů: 1

Controls on winter ecosystem respiration at mid- and high-latitudes

  1. 1.
    0357491 - UEK-B 2011 RIV DE eng J - Článek v odborném periodiku
    Wang, T. - Ciais, P. - Piao, S. - Ottle, C. - Brender, P. - Maignan, F. - Arain, A. - Gianelle, D. - Gu, L. - Lafleur, P. - Laurila, T. - Margolis, H. - Montagnani, L. - Moors, E. - Nobuko, S. - Vesala, T. - Wohlfahrt, G. - Reichstein, M. - Migliavacca, M. - Ammann, C. - Aubinet, M. - Barr, A. - Bernacchi, C. - Bernhofer, C. - Black, T. - Davis, K. - Dellwik, E. - Dragoni, D. - Don, A. - Flangan, L. - Foken, T. - Granier, A. - Hadley, J. - Hirata, R. - Hollinger, D. - Kato, T. - Kutsch, W. - Marek, Michal V. - Matamala, R. - Matteucci, G. - Meyers, T. - Monson, R. - Munger, J. - Oechel, W. - Paw U, K.T. - Rebmann, C. - Tuba, Z. - Valentini, R. - Varlagin, A. - Verma, S.
    Controls on winter ecosystem respiration at mid- and high-latitudes.
    Biogeosciences Discussion. Roč. 7, č. 5 (2010), s. 6997-7027 ISSN 1810-6277
    Grant CEP: GA MŠk(CZ) ED1.1.00/02.0073
    Výzkumný záměr: CEZ:AV0Z60870520
    Klíčová slova: winter ecosystem respiration * mid-and high-latitudes
    Kód oboru RIV: EH - Ekologie - společenstva

    Winter CO2 fluxes represent an important component of the annual carbon budget in northern ecosystems and the factors influencing the spatial and temporal pattern of ecosystems winter respiration (RECO). For this reason, we analyzed eddy covariance flux data sets from 57 ecosystem sites ranging from ~35° N to ~70° N. Deciduous forests carry the highest winter RECO ratios (9.7–10.5 g C m-2 d-1), when winter is defined as the period during which air temperature remained below 0 °C. By contrast, wetland ecosystems had the lowest winter RECO (2.1–2.3 g C m-2 d-1). Evergreen needle-leaved forests, grasslands and croplands were characterized by intermediate winter RECO values of 7.4–7.9 g C m-2 d-1, 5.8–6.0 g C m-2 d-1, and 5.2–5.3 g C m-2 d-1, respectively. The increase in winter RECO with a 1 °C warming based calculated from the spatial analysis was almost that double that calculated from the temporal analysis.
    Trvalý link: http://hdl.handle.net/11104/0195756