Development of new historical global Nitrogen fertilizer map and the evaluation of their impacts on terrestrial N cycling and the evaluation of their impacts on terrestrial N cycling

Kazuya Nishina1, Akihiko Ito1 and Seiji Hayashi2, (1)NIES National Institute of Environmental Studies, Ibaraki, Japan, (2)National Institute for Environmental Studies, Miharu, Fukushima, Japan