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紫云山水库于1958年开工,1965年竣工。1960年拦洪蓄水,并开始发挥部分工程效益,至1965年主体工程除溢洪道、电站外全部竣工,渠系工程亦全面配套,开始按设计发挥工程灌溉效益。灌区从1964年起实行了“计划用水,按方收费”的管理方法,节约了水源,逐步扩大了灌溉范围,至1974年灌溉面积由设计的14万亩(包括旱地经济作物1万亩),扩大到16万亩(包括旱地经济作物2万亩),为灌区农田的稳产、高产作出了贡献。为了探讨按经济规律办事,讲究经济效益,提高管理水平,充分发挥水资源的最佳效益,我们对紫云山水库灌溉经济效益和主要经济指标进行了初步调查以及计算分析,并分述如下:
Ziyunshan reservoir started in 1958, completed in 1965. Flood control and water storage in 1960 started to exert some project benefits. By 1965, all major projects except spillway and power station were completed and the canal system was also fully furnished. The irrigation area has implemented the “plan water, charge according to party” management method since 1964, saved water source and gradually expanded the irrigation area. By 1974, the designed area of 14,000 mu (including 10,000 mu of dry land cash crops) Expanded to 16 million mu (including 20000 acres of dry land economic crops), and contributed to the stable yield and high yield of irrigated farmland. In order to explore the economic laws and regulations, pay attention to economic benefits, improve management, and give full play to the best water resources, we conducted a preliminary investigation and calculation of the economic benefits of Ziyunshan Reservoir and the main economic indicators, and are described as follows: