摘要
通过室内单点膜孔入渗试验资料 ,分析了充分供水条件下的单点膜孔入渗湿润体形状和湿润体内含水量变化规律 ,在此基础上 ,研究了单点膜孔入渗水平湿润半径和垂直湿润半径与入渗时间的关系 ,并提出了湿润半径和湿润体内平均含水量的计算公式。
The shape of wetting soil and its water content distribution law of single point source infiltration under adequate water supply are analysed, on the basis of these, studies the relation between horizontal infiltration diameter and vertical infiltration diameter and infiltration time, and presents the calculation formula of infiltration diameter and average water content in wetting soil. These research results have laid a foundation for further study of the technology parameters of film hole irrigation.
出处
《水土保持学报》
CSCD
北大核心
2001年第5期137-140,共4页
Journal of Soil and Water Conservation
基金
国家自然科学基金资助项目! (5 97790 2 7)
陕西省"九五"科技攻关项目 !(95 K0 4- G4)
关键词
膜孔灌溉
点源入渗
湿润体形状
film hole irrigation
point source infiltration
shape of wetting soil
soil water content
