宽垄沟灌覆膜条件下土壤水分侧向入渗特性  

Lateral Infiltration of Soil-water Movement Characteristics of Film-mulched Wide Ridge and Furrow Irrigation

作　　者：马金宝[1] 毕建杰[2] 张兴强[3] 白清俊[1] 张静[4] 张艳妮[1] 

机构地区：[1]山东农业大学水利土木工程学院,山东泰安271018 [2]山东农业大学农学院,山东泰安271018 [3]山东泰安市气象局,山东泰安271018 [4]山东泰安市水利局,山东泰安271018

出　　处：《灌溉排水学报》2006年第6期27-29,共3页Journal of Irrigation and Drainage

基　　金：山东省泰安市科技局项目:泰安市农田节水关键技术与气象学模型研究资助;山东省中青年科研基金项目资助

摘　　要：在大棚内模拟宽垄沟灌垄上覆膜栽培条件以及灌水方案，采用中子仪进行水分观测，研究宽垄沟灌模式下灌水前后水分在垄沟间侧向入渗特性。试验结果表明，在本试验条件下，水平向及垄背垂直向含水量梯度的存在导致水分侧向及向垄背的补给明显，垄背剖面的2个观测点表层，灌水前其含水量不足田间持水量的70％，灌水后垄沟水分的侧向入渗，使该二测点表层土壤含水量呈上升趋势，17d后其平均含水量能达到田间持水量的7S％～80％之间。In order to observe the water lateral infiltration between ridge and furrow, this experiment simulated the condition of film-mulched wide ridge and furrow irrigation and that of irrigation plan, used neutron probes to observe water content. The results show that, because the water content gradient in lateral and ridge＇s vertical result in obvious lateral infiltration and water supply to ridge, the surface layer of two observation point in ridge section, each water content is less than 70% of field capacity before irrigation, then to 75%-80% after 17 d.

关 键 词：宽垄沟灌 覆膜 侧向入渗 含水量 

分 类 号：S152.7[农业科学—土壤学]