滴灌双向有坡毛管出水规律试验研究  

Experimental Research on the Dropping Water Variation of Paired Capillaries in Drip Irrigation System on Slopes

作　　者：张凯文[1] 刘少东[1] 郭巍[1] 

机构地区：[1]黑龙江八一农垦大学工程学院,黑龙江大庆163319

出　　处：《中国农村水利水电》2017年第8期32-35,共4页China Rural Water and Hydropower

基　　金：国家科技支撑计划项目(2014BAD06B01);2016年黑龙江省大学生创新创业训练计划项目(201610223023);黑龙江省大庆市科技项目(zd-2016-117)

摘　　要：由于地面坡度影响,双向布置滴灌管道在坡地出水量差异较大,合理的灌水均匀度难以保证,限制了其在丘陵漫岗地带的应用。通过试验分析单根毛管在不同坡度情形下出水量及均匀度变化规律,结论表明:双向布置比全顺坡布置更有利于提高灌水均匀度;存在使得毛管出水均匀度最高的最优逆坡毛管长度,不同地形坡度下该最优长度随坡度增加而减少。试验结论对确定坡地滴灌管道布置最优方案提供了参考。Due to the influence of the slope,water discharge in different positions of the drip line is different in paired capillaries of drip irrigation system,and a reasonable value of irrigation uniformity is difficult to achieve. Therefore,its application in the slope area is limited.Water discharge law of single capillary in drip irrigation system on the slope is studied. The results show that paired capillaries layout is conducive to improving the irrigation uniformity compared with complete down-slope arrangement,and the optimal length of uphill capillary is exist,in which the capillary water evenness is highest. The steeper the slope is,the shorter the length is. The results provide a reference for determining the optimal layout of drip irrigation pipeline in sloping fields.

关 键 词：坡地 滴灌 双向布管 出水规律 

分 类 号：TV93[水利工程—水利水电工程] S275.6[农业科学—农业水土工程]