一、杜仲杜仲定植15年以上开始剥皮。剥皮于4～6月进行。用锯子齐地面锯一环状口,深达木质部,向上间隔80厘米处锯第二道环状口。在两环状口之间纵割一切口,用竹片刀从切口处轻轻剥动,使树皮于木质部脱离。第一筒剥下后,把树砍倒,按上述方法依次剥皮。采伐后的树蔸仍可发芽,培育出新树。但为了 First, eucommia Eucommia colonization started more than 15 years peeling. Peeling in April to June. Use a saw to saw a ring-shaped mouth on the floor, reaching the xylem, sawing a second ring-shaped mouth at an interval of 80 cm. Longitudinal cut between the two rings cut an incision, with a bamboo knife gently peeled from the incision at the bark in the xylem detachment. After the first tube peeled off, the tree cut down, according to the above method in turn peeled. Tree felling after harvesting can still germinate, cultivate a new tree. But in order