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1 概述白沙灌区以白沙水库为水源,于1954年10月兴建南、北灌区,1955年11月完成。共有干渠2条、支渠4条、斗渠53条、农渠495条、排水沟85条,总长857km。设计灌溉面积1.53万hm~2,全部为有效灌溉面积。1956年扩灌0.13万hm~2,1957年扩灌0.2万hm~2。1957年底兴建东灌区,1958年6月底基本竣工,共有干渠1条、支渠4条、斗渠47条、农渠500条,设计灌溉面积1.74万hm~2。南、北、东灌区总灌溉面积达3.61万hm~2,渠系水利用率为0.584,灌溉水利用率达到0.429。1959年秋灌实灌面积达2.67万hm~2。1958年专管机构撤销,工程无人管
1 Introduction The Baisha Irrigation Area uses the Baisha Reservoir as its source of water and built the South and North Irrigation Areas in October 1954, completing it in November 1955. A total of two dry branches, branch 4, fighting canal 53, 495 agricultural drainage, drains 85, a total length of 857km. Irrigation design area of 15,300 hm ~ 2, all for the effective irrigation area. In 1956, 30,000 hectares were expanded and 19,000 hectares were expanded and expanded, and 19,000 hectares were expanded and expanded in 1957. The eastern irrigation area was built in late 1957 and basically completed by the end of June 1958. There were 1 main canal, 4 branch channels, 47 fighting channels and 500 agricultural drainage channels , Designed irrigation area of 17,400 hm ~ 2. In the south, north and east irrigation areas, the total irrigated area reached 36100 hm ~ 2, the canal water use efficiency was 0.584, the utilization rate of irrigation water reached 0.429. In the autumn of 1959, irrigation area reached 26700 hm ~ 2. , Project no one tube