滴头(emitter)是滴灌系统的消能和出水设施。其作用是消除毛管中压力水流的剩余能量,使水流从出口一滴一滴地,均匀而缓慢地注人土壤。按其消能特点可分为三种基本类型。
Micro-irrigation is a high efficient and water-saving irrigation technology. Emitter is one of the key components of micro-irrigation system.
微灌是一种高效节水灌溉技术,滴头是微灌系统的核心部件之一,滴头内流道结构特征直接关系到滴头的性能,决定着微灌系统的优劣。
参考来源 - 微灌滴头微通道内流流场实验研究与数值模拟With the effect on soil wetting pattern, the dripper discharge has influence on crop roots development.
滴头流量影响土壤湿润体的大小和形状，从而对作物根系生长也有影响。
参考来源 - 期刊学术社区·2,447,543篇论文数据，部分数据来源于NoteExpress
来自滴头的稳定流量把水中的盐分带到植物根区的外缘。
The constant flow of water from the trickle emitter toward the outer edges of the plant root zone carries the salt along with it.
对于砂土，应选择小的滴头间距，而对于壤土则可以选择大的滴头间距。
Little interval of water dropper should be chosen for sand, but large interval of water dropper can be chosen for loam soil.
该研究对线源滴灌滴头流量、滴头间距的选择以及灌水量的设计有指导意义。
The study in this paper has the directive significance for choosing dripper discharge and interval of water dropper, as well as, designing irrigation quantity for line source drip irrigation.
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