“三北”地区用深栽造林技术营造的杨树人工林,成活率高,生长较常规造林好。深栽的优势在于将苗木深栽入地下水中,克服了干旱地区缺水这一最大威胁。深栽必须打深孔 The poplar plantations created by the deep planting and afforestation technology in the “Three Norths” region have a high survival rate and better growth than the conventional afforestation. The advantage of deep planting lies in the deep planting of seedlings into groundwater, overcoming the biggest threat of water shortage in arid areas. Deep planting must fight deep hole