【摘要】 滴灌是一项新兴的节水灌溉技术,目前主要应用于产值高的经济作物和经济林。将滴灌应用于沙地防护林,并对其节水、节能、省工及投资效益做了初步探讨。滴灌在多树种上应用的研究结果表明:与渠灌相比,滴灌可提高树高生长量11 54%,节水59 1%,节能40 5%,省工50 9%。更多还原

【Abstract】 Drip irrigation is a new technique with the character of water saving,and it is applied mainly in economic crops and economic forest with higher economic values.The authors applied drip irrigation in sandy land shelterbelt cultivation for the first time,and discussed the benefits of water saving,energy saving,labour saving and the investment benefits.The application of drip irrigation technique in various tree species showed that compared with channel irrigation,drip irrigation could increase tree increment by 11.54%,save water,energy and labour by 59.1%,40.5%,and 50.9%,respectively.更多还原