为了提高灌溉管理水平,充分发挥水的经济效益,从1981年宝鸡峡灌区普遍开展了斗渠以下渠道输水损失、利用系数及田间灌水技术测验工作,并取得了初步成果,对指导当前灌溉工作起到一定作用。为了总结经验,现将初步成果加以分析。 (一) 斗渠以下渠道输水损失和利用系数的测验自渠首引入的灌溉水量,除在干、支渠输水过程中损失部分外,还有相当一部分在 In order to improve the level of irrigation management and give full play to the economic benefits of water, the water loss, utilization coefficient and field irrigation techniques of the following channels were generally carried out in Baojixia Irrigation District in 1981, and the preliminary results were obtained. In order to guide the current irrigation work To a certain effect. In order to summarize the experience, the preliminary results are now analyzed. (I) Tests on Water Loss and Utilization Coefficient of Canal Water Drainage and Utilization Coefficient The amount of irrigation water introduced from the head of a canal, in addition to the part lost during the water conveyance of dry and branch channels,