滴灌系统可比其它灌溉系统(如沟灌或喷灌)的灌水效率高。所谓灌水效率是指作物根系活动层要求的储水量与灌入的总水量之比。灌水效率可根据灌溉系统上沿毛管各滴头流量的均匀度,灌溉需水量(灌入根系活动层中的水深)和灌溉中允许的不足水量来计算。 Drip irrigation systems can be more efficient than other irrigation systems such as furrow irrigation or sprinkler irrigation. The so-called irrigation efficiency refers to the crop root activity level requirements of the water storage and irrigation of the total water ratio. The efficiency of irrigation can be calculated according to the uniformity of flow rate along the drip tray in the irrigation system, the amount of irrigation water required (the depth of water infused into the root activity layer), and the amount of insufficient water allowed in irrigation.