Interannual variability of net ecosystem productivity in forests is explained by carbon flux phenology in autumn

Department of Geography and Program in Planning, University of Toronto, Toronto, ON, Canada, Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada, Natural Resources Canada, Canadian Forest Service, Edmonton, AB, Canada, Natural Resources Canada, Canadian Forest Service-Pacific Forestry Centre, Victoria, BC, Canada, Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, USA, Department of Biology, Virginia Commonwealth University, Richmond, VA 23284-2012, USA, Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH, USA, Department of Geography, Indiana University, Bloomington, IN, USA, Department of Bioclimatology, Göttingen University, Büsgenweg 2, 37077 Göttingen, Germany, University of Antwerp, Research Group Plant and Vegetation Ecology, Universiteitsplein 1, 2610 Wilrijk, Belgium, Department of Forest Sciences, University of Helsinki, PO Box 27, 00014 Finland, Department of Physics, University of Helsinki, PO Box 48, 00014, Helsinki, Finland, Department of Chemical and Biochemical Engineering, Technical University of Denmark (DTU), 2800 Kgs. Lyngby, Denmark, Department of Geography, University of Colorado, 260 UCB, Boulder, CO 80309-0260, USA ABSTRACT