About HORIUCHI S
About Nihon Univ., Tokyo
About AMBE Y
About National Inst. Environmental Studies., Tsukuba
About KAWAI T
About National Inst. Environmental Studies., Tsukuba
About 国立公害研究所研究報告
About Hokkaido
About lake basin
About Limnology,potamology
About 摩周湖
About 地形学
About 水文学
About 研究