Institution: | Department of Physical Sciences, P.O. Box 64, FIN-00014, University of Helsinki, Finland;;Department of Physical Geography and Ecosystem Analysis, Sölvegatan 13, SE-22362 Lund University, Sweden;;Department of Physical Sciences, P.O. Box 68, FIN-00014, University of Helsinki, Finland;;Department of Forest Ecology, P.O. Box 27, FIN-00014, University of Helsinki, Finland;;Nicholas School of the Environment and Earth Sciences, Box 90328, Duke University, Durham, North Carolina |