*Tatsuya Miyauchi1, Tomomichi Kato1, Tomoki Morozumi2, Kanokrat Buareal3, Naohisa Nakashima4, Shohei Murayama5, Makoto Saito2, Hibiki M Noda2, Hiroyuki Muraoka6
(1.Research Faculty of Agriculture, Hokkaido University, 2.Earth System Division, National Institute for Environmental Studies , 3.Graduate School of Global Food Resources, Hokkaido University, 4.Department of Agro-environmental Science, Obihiro University of Agriculture and Veterinary Medicine, 5.Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology, 6.River Basin Research Center, Gifu University)