滴灌带灌水均匀度田间试验分析  

Field Test and Analysis of Irrigation Uniformity of Different Drip Irrigation Belts

作　　者：景少波 王成福 

机构地区：[1]新疆水利水电科技信息中心,乌鲁木齐830000

出　　处：《山西水利科技》2011年第4期74-76,79,共4页Shanxi Hydrotechnics

基　　金：水利部科技推广计划"农业高效节小技术综合集成示范"(项目编号TG1152)

摘　　要：以2种不同类型滴灌带为研究对象,通过测定不同铺设长度、铺设坡度以及入口压力下滴头沿毛管的流量分布,计算出各情况下毛管灌水均匀度,并测试了滴头的制造偏差,分析了降低入口压力对两种毛管灌水质量的影响。结果表明:B型滴灌带在各种情况下灌水均匀度均优于A型滴灌带,但在灌水均匀度允许范围内,A型滴灌带以其价格优势易于推广。Taking two kinds of drip irrigation belt as research object,the flow rate distribution of drippers along capillary tubes at different inlet pressures were measured under the conditions of different laying length and slope,then the uniformity of capillary tubes was calculated under different conditions in consideration of the manufacture deviation of drippers.The influence of irrigation uniformity on condition of decreaseing inlet pressure is analyzed.The results showed that irrigation uniformity of type B is better than type A under various cases,but in the allowable range of irrigation uniformity,type A is easy to spread because of its low price.

关 键 词：低压滴灌 灌水均匀度 滴灌带 压力水头 

分 类 号：S275[农业科学—农业水土工程]