Abstract
We design a model to examine the determinants of the participation and continuation in river preservation activity by using structural equation modeling with questionnaire data from residents who participate in river preservation activities. The proposed model demonstrates that attachment to the local community and rivers, cost benefit evaluation have influence of the same degree as a determinant of participation and that cost benefit evaluation has strong influence more than attachment to the local community and rivers about a determinant of a continuation intention. Furthermore, multiple group analysis in the structural equation modeling showed that cost benefit evaluation has stronger influence for continuation intention in the person who belongs to Adopt-Program participation group more than the person who doesn't belong.