【摘要】 将具有保墒增温等优点的地膜覆盖栽培方法,与具有节水增产适时适量的局部浸润滴灌集成创新,形成优势互补相得益彰的膜下滴灌技术,是我国典型的内陆干旱新疆农业节水实践成果,这一技术已在新疆灌区大面积应用,成为我国干旱农业区实施节水灌溉的重要发展模式。随着膜下滴灌技术的应用实践,该技术在具有节水增产、增温保墒等特点的同时,由于膜下滴灌特有的介面特征,显现出在水盐运行环境、运移变化特点、脱盐程度等方面与传统和单一的灌溉方式有着明显不同的特点。综述了近年来新疆灌区有关膜下滴灌条件下的水盐运移、脱盐变化等主要方面试验研究和实践效果,提出了利用膜下滴灌的水盐运移规律而实施脱、排盐应用研究方向。更多还原

【Abstract】 The technology of drip irrigation under film,which combined the film-covered planting method with drip irrigation technology,was a practical achievement for water-saving agriculture in representative inland arid region and had been adopted in Xinjing irrigation district with large areas. It has become an important development mode for water saving irrigation in arid agricultural region.Compared with single drip irrigation,because of its special interface character,drip irrigation under film showed different character in the aspects of soil water and salt transportation and desalinization extent.The achievement of experimental and practical research on soil water and salt transportation and the verity of desalinization under drip irrigation under film in Xinjiang irrigation district was summarized in this paper.Also,the research proposal of using the laws of soil water and salt transportation under the condition of drip irrigation under film to exclude salt was presented by the author.更多还原