【摘要】 地下滴渗灌作为一种国内外正在开发的低定额节水灌溉技术,已成为国内外缺水地区果树及某些经济作物抵御干旱缺水,发展优质、特色、高效农业的重要技术措施之一,具有广阔的推广应用前景。介绍了地下滴渗灌的研究与应用现状,分析了灌水技术指标、作物需水量和节水增产效应、土壤水分运动规律及数值模拟、灌水器等方面的研发进展,讨论了目前存在的问题和未来的研究方向等方面。更多还原

【Abstract】 Subsurface drip irrigation(SDI) is a kind of water-saving irrigation technique with low quota which is being researched in China and abroad.It can help the crops to withstand drought in water-shortage areas.At the same time it has been one of the most important measures to develop the high-grade,characteristic,and highly efficient agriculture.It has a broad prospect of application and dissemination.This paper discusses the development of SDI,analysis of the application status quo,irrigation index,crop water requirement and production increase effect,water movement and numerical simulation under SDI,the emitters’ development,the existing problems and future research direction, and so on.更多还原