Study On Available Water Supply Of The Large Scale Reservoirs In Shandong Province

According to the concept of available water supply,the calculation methods about available water supply of the large scale reservoir are studied and the concrete procedures of the long-series regulation method are proposed. Through the calculation of the monthly natural runoff every year,Water incomes under present engineering status,and the long-series dynamic water usage regulation of the 32 large scale reservoirs in Shandong Province,available water supply under assurance rates of 50%,75% and 95% are obtained. According to the analysis of runoff characteristics of each reservoir(multi-year mean runoff depth and runoff coefficient),the relationship between water supply incomes under different assurance rates for current year and the year of 2010,the reservoirs with water supply potence are given. Taking Xujiaya Reservoir as an example,the calculation process and data are presented in this paper to show the detail calculation procedures. At last,the paper also proposes some suggestion about how to improve reservoir's water supply capacity.