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白沙灌区分为东、南、北和新北干四条干渠,其中南干、北干和新北干三条干渠为砌石护砌,东干渠为土渠。干渠以下支斗渠多为土渠。灌区自20世纪50年代建成运行至今,主要工程及建筑物已老化失修,渠道输水跑、冒、渗、漏严重,输水能力明显下降,灌区有效灌溉面积逐年下降。随着近几年国家对农田灌溉水利工程的重视和政策性支持投入,白沙灌区自2009年正式启动灌区节水改造和续建配套工程项目。经过几年的实施,骨干渠道和主要建筑工程面貌焕然
The Baisha Irrigation Area is divided into four trunk channels in the east, south, north and new northern trunk areas, of which three trunk channels, namely the South Dry, North Dry and New North Dry, are masonry masonry and the East Dry Channel is a soil channel. Drainage canal following canal mostly for soil canal. Since the irrigation area was completed and put into operation in the 1950s, the main works and buildings have been aged and disrepair, and the water and water run, run, seeded and leaked in the channels seriously. The capacity of water conveyance decreased obviously and the effective irrigated area decreased year by year. With the emphasis on irrigation and water conservancy projects in rural areas and policy support in recent years, Baisha Irrigation District officially started the project of water saving transformation and continued construction of irrigation districts since 2009. After several years of implementation, the backbone of the main channel construction projects and look