点源滴灌土壤有效湿润区简易模型分析  

Analysis on a Simple Model of Soil Wetted Pattern under Point Source Drip Irrigation

作　　者：赵晔[1] 李明思[1] 

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832003

出　　处：《灌溉排水学报》2014年第1期30-33,共4页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(51069012)

摘　　要：根据水量平衡原理,以Green-Ampt模型和Warrick模型为基础,建立了描述点源滴灌土壤有效湿润区的数学模型,并试验验证了紧沙土和中壤土点源滴灌的土壤有效湿润区深度和宽度以及滴头流量。结果表明,该模型模拟出的点源滴灌土壤有效湿润区形状与实测结果吻合较好,且计算过程简单,模型具有可靠性。A simple model was developed, based on the principle of water balance and Green-Ampt model as well as the Warrick model, to evaluate the soil wetted pattern and drip discharge in the design of drip irrigation system. The soil wetting width and depth as well as dripping discharge calculated by the model were verfied experimentally under the point source drip irrigation in the silty sand and loamy soil. The results showed that the simulated soil wetted pattern shape by the model matched well with the measured data, and it was easy and reliable to use the model.

关 键 词：点源滴灌 土壤湿润区 滴头流量 数学模拟 

分 类 号：S275.6[农业科学—农业水土工程]