ANALYSIS OF PHOSPHORUS DEPENDENCY IN ASIA

1Assoc. Prof., Graduate School of Engineering, Tohoku University, (Email: e-webeck@material.tohoku.ac.jp) 2Ph.D.(Econ.), Assoc. Prof., Graduate School of Engineering, Tohoku University, (Email: matsubae@m.tohoku.ac.jp) 3Ph.D.(Eng.), Senior Researcher, National Institute of Environmental Studies, (Email: nakajima.kenichi@nies.go.jp) 4Ph.D.(Eng. Sci.), Senior Researcher, National Institute of Environmental Studies, (Email: nansai.keisuke@nies.go.jp) 5Ph.D.(Eng.), Prof., Graduate School of Engineering, Tohoku University, (Email: t-nagasaka@m.tohoku.ac.jp)