新型地面灌水技术膜袋灌  

New Type of Ground Irrigation Technology of Membrane Bag Filling

作　　者：李立[1] 李小龙[1] 顾唯甬 王盈盈[1] LI Li, LI Xiao- long, GU Wei -yong, WANG Ying- ying(North China University of Water Resources and Electric Power, Zhengzhou 450011, Chin)

机构地区：[1]华北水利水电大学,郑州450011

出　　处：《水利科技与经济》2018年第3期33-36,46,共5页Water Conservancy Science and Technology and Economy

基　　金：河南省科技攻关计划专项(122102110050);华北水利水电大学青年科技创新人才支持计划(70500)

摘　　要：膜袋灌技术是一种集节水、节能、省工、省时于一体的新型高效地面灌水技术。膜袋灌技术能有效解决传统地面灌水方法蒸发量大、深层渗漏多,水分利用效率低和灌水均匀度差等问题,适应我国现阶段农业的发展需求,具有重要的科研价值和现实意义。通过室内水平土箱膜袋灌水实验研究,发现膜袋灌水后湿润带内灌水均匀系数均在70%以上,属于高均匀度节水灌溉新技术。灌水量和膜孔间距会对膜袋灌水后土壤湿润均匀性产生影响,特别是沿膜袋方向上。可通过减小膜孔间距和增大灌水量的方法,进一步提高膜袋灌水均匀性。Technology of membrane bag filling Is a collection of water saving, energy saving, work saving, time saving in a new type of high efficient ground water irrigation technology. Membrane bag filling technology can effectively solve the problem of traditional ground irrigation method for evapo- ration capacity big, deep leakage, poor low water use efficiency and poor irrigation uniformity , meeting the needs of agricultural development at the present stage in China, having important scientific value and practical significance. Through the indoor levels soil box membrane bag filling experi- ment research, founding that the membrane bag within humid zone after irrigation irrigation uniformity coefficient were above 70% , belonging to high evenness of water - saving irrigation technology. Irrigation water amount and film hole spacing on membrane bag effect the moisture uniformity after membrane bag filling , especially along the direction of membrane bag. Increase the irrigation water amount and decrease the film hole spacing can further improve the irrigation uniformity.

关 键 词：膜袋灌技术 地面灌水技术 灌水均匀度 水分利用效率 

分 类 号：S275[农业科学—农业水土工程]