Touro-Kayanuma Region - Restore the Aquatic Environment Documents and Materials (Japanese Only) Possible approaches for nature restoration taken by the Ministry of Environment at each regions of "Touro-Kayanuma," "Kutyoro-Hororo," and "Honnenai-Hokuto" Possible approaches at local scale Experiment of water purification at Kayanuma region Problems and issues for natural environmental conservation at each region of "Touro-Kayanuma," "Kutyoro-Hororo," and "Honnenai-Hokuto" Transition of aquatic environment Schematic drawing of issues at Touro-Kayanuma region Schematic drawing of issues at Kutyoro-Hororo region Schematic drawing of issues at Onnenai-Hokuto region
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