In recent years,subsurface drip irrigation (SDI) has provoked interest for its effect of increasing crop yield and saving water.

• 地下滴灌是一种新型的节水灌溉技术，具有诸多优点，不仅在技术和经济方面，而且在生态环境保护方面都是最有发展前途的节水灌溉技术。