滴灌较常规灌造林具有诸多优点 ,如节水省肥、减少整地费用、排盐、提高造林成活率、高产优质等。滴灌的基本原理是 :将水加压、过滤 ,必要时连同可溶性化肥、农药一起通过管道输送至滴头 ,以水滴 (渗流、小股射流等 )形式给树木根系供水分和养分。由于滴灌仅局部湿润土体 ,而 Drip Irrigation than conventional irrigation has many advantages, such as saving water and fertilizer, reducing land preparation costs, salt drainage, improve survival rate of afforestation, high yield and quality. The basic principle of drip irrigation is to pressurize and filter the water, if necessary, together with soluble fertilizers and pesticides to the drippers through pipes, and to supply water and nutrients to the roots of trees in the form of water droplets (seepage, small jet, etc.). Due to drip irrigation only partially moistened soil, however