Measurement of Effects for Reuse of Reclaimed Water Based on Regional Economic Analysis

Abstract

 Reuse of sewage-treated water (reclaimed water) can be one way of securing water stably in areas with poor water resources such as drylands. In this paper, we propose measures to promote agriculture by introducing reclaimed water into the area where water shortage is normal, and present a method to analyze the regional economic effect. First, the optimum item-specific production is calculated by linear programming under the condition that reclaimed water is available. Secondly, the rippling effect of the increase in agricultural production on regional economies will be calculated by the input-output analysis.