直插式根灌节水装置设计及应用示例

Water-saving Device Design and Application Examples of Straight-tube Root Irrigation

干旱区高效节水灌溉技术的创新与发展,是干旱区水资源高效利用的主要举措之一。针对我国西北干旱地区人工生态林和经济林节水灌溉技术发展的需求,结合干旱地区水文、气候、土壤特点,为解决干旱地区高效节水灌溉中存在的一些科学问题及技术难点,达到有效抑制干旱地区表层土壤水分蒸发损失,解决干旱区灌溉水利用效率低下、浪费等问题。本文提出了一种"直插式根灌节水技术",并对其根灌技术装置,进行了一系列设计、制作及试验,为直插式根灌节水技术的进一步研究与推广应用,提供相应的试验数据及成果。直插式根灌技术是一种高效节水的地下滴灌技术,能提高灌溉水的有效利用率、提高灌水效率,增加土壤含水率、增加土壤层的湿润深度。直插式根灌节水技术为我国西北干旱区水资源的高效利用、果树经济林发展、人工生态林建设、荒漠化治理、高效节水灌溉技术的发展,开创一条高效节水灌溉技术新途径,起到积极的推动作用。

It is one of the main measures for the efficient utilization of water resources in arid areas to innovate and develop high-efficiency water-saving irrigation technologies.【Objective】We aimed at the needs of the development of water-saving irrigation technologies for economic forest and artificial ecological forest in arid areas of northwest China,in combination with the characteristics of hydrology,climate,and soil in arid areas,and to solve some scientific problems and technical difficulties existing in the high-efficiency water-saving irrigation in arid areas.【Method】This paper proposed a“water-saving straight tube root irrigation technology”,and the corresponding structural design,manufacture and test data of its root irrigation device,to restrain the water evaporation loss in the surface soil in arid regions,solve the problems of low utilization efficiency and high waste rate of irrigation water in arid areas,and provide the related test data and results for the further research and application of water-saving straight tube root irrigation technologies.【Result】As an underground drip irrigation technology with high efficiency and water-saving functions,the straight tube root irrigation technology mentioned here can enhance the effective utilization of irrigation water,improve the efficiency of irrigation;Increase soil moisture content and increase depth of soil wet layer.【Conclusion】Water-saving straight tube root irrigation technology plays a positive role in creating a new way of highly-efficient water-saving irrigation technologies for efficiently utilizing water resources.developing fruit economic forest,constructing artificial ecological forest,controlling desertification,and researching high-efficiency water-saving irrigation technologies in arid areas of northwest China.