Abstract
In order to clarify factors to promote partnership of river authority and NPO, this paper analyzes a case of "Asakura-Gawa Ikusui Forum" which tackles river management cooperatively with the river authority and local residents. Conclusions are as follows; (1) River authority's needs to improve river environments with citizen participation and intense needs of the NPO to restore clean river are motives to establish their partnership. (2) A way to recruit local groups for river clean activities can collect not only sympathizing residents with the NPO but many residents interested in river environment. (3) Participation in the river management activities makes the redidents' concern for the river improved, and inspirs continuous participation intention.
