Life Water Demand Forecasting for Hunan Province

This paper forecasts the life water demand of Hunan province for planned years with quota method and exponential smoothing principle. The results show that the calculated life water consumption is relatively accurate in 2014. Residents living water demand shows different rises in 2020 and 2030 based on the quota method, and the rising rate from 2020 to 2030 in less developed cities is higher than that of the developed regions. Using the exponential smoothing method to forecast public water demand in cities, this article used the average value of Holt linear trends, Brown linear trend and damping as the forecasting value in planned years. There has been a sharp growth for public water demand in planned years, and the mean rising rate from 2020 to 2030 is higher than the rate from 2015 to 2020.