THE FACTOR AND POTENTIAL ANALYSIS ABOUT RIVER ENVIRONMENTAL MANAGEMENT BY RESIDENTS

Abstract

 It is important that residents do river environmental management, because reducing governmental burden, minimization of the psychological distance of residents and river and strengthening regional social network. Recently, these activities by cooperation of residents and administration are done. The purpose of this study is to create the assessment model for potential of resident activities considering with social capital and usefulness, and to make the potential maps of various kinds of activity.
 Firstly, the changing process of management activities are analyzed of class A river. The activity began in the East Japan and spread through the whole country in the 1990s. Most of old activity contents were cleaning, but in late years a variety of activity including the river environment study. Secondly, linear discriminant analysis about doing activity or not was done in Chugoku, Shikoku and Kyushu districts. The river where activity is done has an elementary school near and an own house rate is high. Thirdly, the activity potential evaluation by the logistic regression analysis is done. It is shown to be high activity potential in the river where basin cooperation is carried out. It is thought that the basin cooperation functions as the bridging type social capital. An activity potential map is made using this evaluation model. The potential evaluation model about individual activity contents are made. The effect of the basin cooperation was shown quantitatively by making an evaluation model.