潇河灌区渠系改造节水效益评析

Appraisement on Water-saving Canal Improvement in Xiaohe Irrigation District

潇河灌区经过近 5 0年的运行 ,渠系建筑物老化破损严重 ,灌溉水利用率极低。通过实施渠系改造工程 ,渠系水利用率由 0 .485提高到 0 .6 3,年节水量 70 4万m3,增加灌溉面积 8.6万亩次 ,节水效果明显 ,经济效益显著 。

After the canal system of Xianhe irrigation district has been improved for the purpose of water-saving,the water application rate in the canal system is raised from 0.485 to 0.63,the total water amount saved is 7,040,000 m 3,86,000 mu irrigated area is increased.This shows the good water-saving effect and the high economic benefit,and this also ensures the sustainable development of the irrigation district.