通过对东莞市1980—2013年间较长序列的供水、用水结构变化趋势进行深入分析，从不同角度分析了各类型供用水对供用水总量的影响，揭示了不同阶段各类型供用水量的变化规律：东莞市供用水总量总体呈上升趋势，2007年后逐渐趋于稳定；供水量由以蓄水、引水为主逐渐转变为以提水为主，用水量由以农业用水为主逐渐转变为以工业用水和生活用水为主。最后，采用贡献率分析法计算了各类型用水对全市用水量变化的贡献率。%With the analysis of the change trend of water supply and water usage structure in Dongguan during 1980~2013, the influences of different types of water supply and water usage in general water output have been analyzed in various angles , and change law of different types of water supply output in different stages have been unveiled : The total amount of water supply and usage for Dongguan City has been increasing year by year and gradually stabilized after 2007;the water supply used to be dominated by storage water and diverted water , but now it is dominated by lifted water .The water was mainly used for agricultural purposes , but now it is used mainly for industrial and life purposes .Finally, the contribution rate analysis method is adopted to calculate the contribution rate to the quantity of water usage of the whole city by various types of water usage .
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