convener:Hajime Matsushima(Research Faculty of Agriculture, Hokkaido University), Norimasa TAKAYAMA(Forestry and Forest Products Research Institute), Yusuke Mizuuchi(Graduate School of Agricultural and Life Sciences, The University of Tokyo), yoji aoki(National Institute for Environmental Studies), Chairperson:Norimasa TAKAYAMA(Forestry and Forest Products Research Institute), Hajime Matsushima(Research Faculty of Agriculture, Hokkaido University)