Werner et al., 2001 1 Interannual Variability of Methane Exchange Over a Temperate-Boreal Lowland and Wetland Forest Cindy Werner 1 , Kenneth Davis 2 , Peter Bakwin 3 , Chuixiang Yi 2 , Dale Hurst 2 , Loreen Lock 4 1 Department of Geosciences, Penn State University 2 Department of Meteorology, Penn State University 3 Climate Monitoring and Diagnostics Laboratory, NOAA, Boulder, CO 4 Cooperative Institute for Research in Environmental Science, University of Colorado (werner@geosc.psu.edu, davis@essc.psu.edu, Peter.Bakwin@.noaa.gov, cxyi@essc.psu.edu) To be submitted to: Global Change Biology March, 2001