华北地区降水量较少且分布不匀,春旱严重,造林困难很大,尤以低山阳坡为甚。因此,提高干旱阳坡的造林成活率一直是生产上急待解决的重要课题。长期以来,林业科技人员从树种选择、整地和造林方法、栽植容器苗、覆盖地膜以及增强苗木活力等不同角度开展了试验研究,寻求适宜的造林技术,并取得了一定的成效。但华山石质低山干旱条件下造林成活率低而不稳的问题始终未能获得很好的 Precipitation in North China is less and unevenly distributed, severe drought, afforestation is very difficult, especially in low mountain and sunny. Therefore, increasing the afforestation survival rate of dry sunny slopes has been an important issue to be solved urgently in production. For a long time, forestry science and technology personnel have carried out experimental research from the aspects of tree species selection, site preparation and afforestation methods, container seedlings cultivation, plastic film mulching and seedling vitality enhancement, seeking appropriate afforestation techniques with some success. However, the problem of low and unsteady afforestation survival rate under the rocky mountainous conditions in Huashan has not been well-established