抄録
We propose the method of quantifying mitigating effect of water conservation policy on shortage during drought. Because it is difficult to forecast effect of water conservation policy, evaluating effect and changing the way of policy is important. In Matsuyama City, the city has subsidized purchasing a washing machine with pump for reuse of water, a pump used as a single agent and a dish washer to conserve domestic water. It is estimated that this project decreases the domestic use of water by 1.5% but the damage resulting from drought by more than 10%.This result indicates the fractionation of water use is vital to estimate the effect on the damage during drought.
