不同灌水条件下地下渗灌试验研究

地下渗灌是一种理想滴灌方式,由于关键技术没有很好解决,至今发展面积很小。针对这一问题,提出本试验研究。该试验是在实验室内的一个50cm×30cm×60cm的有机玻璃槽中进行,所用的土都是黏壤土。试验采用地下节点渗灌的方法。对试验所得的数据进行分析,得出地下渗灌的湿润锋运移基本规律、土壤含水率的分布规律,并在不同灌水量条件下对湿润锋的影响等进行了初步探讨。

An Experimental Study on Underground Subsurface Irrigation under Different Irrigation Condition

The underground subsurface irrigation is an ideal drip irrigation mode.Because the key technology has not been solved,the application area is small so far.In this study,an experimental study has been proposed to solve this problem.The experiment is per-formed in a 50 cm×30 cm×60 cm tank in the lab.The sample soil is clay loam.The method of the underground node subsurface ir-rigation is used.Through analyzing the experiment data,the primitive rules about the movements of the water frontier,the distrac-tion of soil water content and the impact on the water frontier under different irrigation content conditions are obtained.