Abstract
In this paper, the effects of psychological factors and community association activities (CAA) on river beatification activities (RBA) such as mowing, river cleaning, and consideration for wastewater are investigated using two step model, Attitude and Behavior, based on the questionnaire survey of residents who live in Seki river basin. The rcsults are as follows:(1) Regardless of RBA, evaluation of feasibility influence Attitudes toward RBA.(2) Attitudes toward CAA influence Attitudes toward mowing and river cleaning.(3) Every factor of RBA influences Behavior in its own different way.