While sustainable region is a common pressing target for a municipality, Okayama Prefecture was adopted for its Eco-town project in 2004. This paper reports interdisciplinary research actions for the Eco-town, which contemplates identifying environmentally sound technologies for mainly wood wastes such as activated charcoals as well as developing them into utility products and establishing the integrated river basin management frameworks and decision support tools. Firstly, water environments of down-stream regions of Okayama Prefecture are identified as critical local environmental concerns. Secondly, activated charcoals are experimented, as focal innovative environmental technologies, for its absorbing and dissolving functions for organic contaminants. Finally, integrated environmental material flow assessment system is designed tentatively.
