本文的主要目的是和一篇初期成果报告一起,介绍一个设计灌溉系统的新概念。这种系统的特点是耗能少配水精确,并以此命名为精确配水低能耗(LEPA)系统,该系统不是利用中高压把水喷洒到空气中,而是利用竖管和孔口控制滴头以极低的压力直接把水洒布在垄沟里,这样,系统要连续在田间直线穿行.使用该系统时,土地要事先整出许 The main purpose of this paper is to introduce a new concept for designing irrigation systems along with an initial report of results. The system is characterized by less energy and less water distribution, and is named as the LEPA system, which uses the medium and high pressure to spray water into the air instead of using standpipes and orifices to control the dripper With very low pressure directly to the water sprinkled in the furrow, so that the system should be straight in the field through the line. The use of the system,