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石头河水库灌区东西长34km,南北宽15km,辖岐山、眉县两县14个乡镇,112个自然村,总耕地面积37万亩。渠系工程包括西、北、东三条干渠13条支渠,222条斗渠。干支渠全长97.4km,已衬砌的86.4km,斗渠总长416km。 西干渠和北干渠是原梅惠渠灌区老渠道。梅惠渠始建于康熙六年,30年代由李仪祉先生主持,进行过一次全面整修,建国后1950～1967年又分别对引水坝、干渠
The irrigation area of Shitouhe Reservoir is 34km long from east to west and 15km wide from north to south. It has jurisdiction over 14 townships and 112 natural villages in Qishan and Meixian counties and a total area of 37 mu of cultivated land. The canal system includes 13 branch channels and 222 canal channels of the three main channels of the west, north and east. The total length of the dry branch and canal is 97.4km, with a lining of 86.4km and a total length of 416km. West trunk canal and North Canal is the original Mei Huiqu irrigation district of the old channel. Mei Huiqu was built in six years of Kangxi, chaired by Mr. Li Yizhi in the 1930s, conducted a comprehensive renovation, after the founding of the Republic of China from 1950 to 1967, respectively, the diversion dam,