一、需水分析和节水政策为了说明传统的经济分析,我们可以用图1A中的S_n供水曲线来说明平水时期的特性。假若我们取需水曲线的斜率为负,那么水价OA将能使所有按此水价所获得用水的单位满意。供水曲线S_s可以代表缺水。在此时刻,用水率将有所减少;用水户将不能用过 Water Analysis and Water Conservation Policy To illustrate the traditional economic analysis, we can use the S_n water supply curve in Figure 1A to illustrate the characteristics of the flat water period. If we take the slope of the water demand curve to be negative, the water price OA will satisfy all the units that receive water at this water price. Water supply curve S_s can represent water shortage. At this juncture, the water use rate will be reduced; users will not be able to use it