榆林沙区北美红栎引种栽植试验

Introduction Experiment of Quercus rubra in Yulin Sandy Land

在榆林沙区引种北美红栎进行栽培试验,对其物候期、生长量、抗寒抗旱性、抗病性等进行了观测研究。结果表明:引种北美红栎容器苗栽植成活率较高,但生长较慢;抗寒性较差,需要采取有效的防护措施才能保障其安全越冬;在黄土上表现出较强抗旱性,但在沙地上抗旱性较差;7—8月北美红栎食叶害虫比较严重,但不影响其植株正常生长发育。

Introduction experiments of Quercusrubra in the sandy area of Yulin Sand land, the phenology,growth, cold resistance, drought resistance and disease resistance were studied by means of observation and investigation. Result shows that the survival rate of the tansplantation of Quercusrubra container seedling is comparatively higher, and has slow growth;the necessary protective measures to ensure its safe hibernation because of the cold resistance is poor;the drought resistance is generally higher in loess than sandy land; the defoliators which damaged Quercus rubra are more serious fromJulyto August,but it does not affect the normal growth and development of its plants.