About KISHI SATORU
About 沖縄開発庁 沖縄総合事務局
About HAMATANI NAOFUMI
About 農水省 東北農政局
About NAGATA JITSUYA
About Ministry of agriculture and cooperatives, THA
About HARA IKUO
About 農水省 関東農政局
About KUSUMOTO TAKESHI
About 国土庁 地方振興局
About ground water resources
About Water resources
About 沖縄
About 集水井
About 淡水レンズ
About 地下水開発