紫色页岩风化层,在我县叫剥皮土,一般无团粒结构,植被稀少,水土流失,干旱瘠薄。造林时,穴内往往积水,春涝夏旱。若不选择适宜树种,造林不易成活,或林木生长不良。1970年以来,重阳公社在大片紫色页岩山上,造乌桕林1700亩,目前生长良好。现将情况介绍如下:一、造林方法:山顶、陡坡地,母岩 Purple shale weathering layer, called peeled soil in our county, the general non-aggregate structure, vegetation is scarce, soil erosion, infertility infertility. Afforestation, the hole is often water, spring flood drought in summer. If you do not choose the appropriate tree species, afforestation is not easy to survive, or poor growth of trees. Since 1970, Chongyang Commune has been growing well on the large purple shale hill with 1,700 mu of U.P. Now the situation is as follows: First, afforestation methods: the top, steep slopes, mother rock