About OGAWA MIKI
About 山口大 大学院農学研究科
About FUKADA MITSUO
About Journal of Rainwater Catchment Systems
About paddy field
About drainage canal
About turbid water
About activated carbon
About cleaning (purification)
About water purification
About filter material
About Bamboo Charcoal
About water quality purification
About Agricultural engineering
About Physical treatment of sewage and wastewater
About 水田
About 排水路
About 濁水
About ろ過材
About 竹炭
About 敷設