杜仲是我国特有的名贵中药材之一。具有降压、补肾、补肝、强筋骨,治疗腰腹疼痛,高血压等多种功能。过去,人们沿用多年育树、一次砍树剥皮的方法采集树皮入药,致使资源日渐减少。我们根据研究资料,经过多年实践,对杜仲树进行环状剥皮采集药材,成功率在95％以上。采用环状剥皮方法,对正常生长中的杜仲树环状剥皮后,加强管理,一个月左右就能再生出结构基本正常的新皮;再经过三年正常生长,新 Eucommia is one of our unique precious Chinese herbal medicines. With blood pressure, kidney, Bugan, strong bones, the treatment of pain in the waist and abdomen, high blood pressure and other functions. In the past, people used to raise trees for many years, once the tree bark peeling method of collecting bark medicine, resulting in decreasing resources. According to research data, after years of practice, we conducted ring-shaped peeling of medicinal materials on Eucommia ulmoides, with a success rate of more than 95%. The ring-shaped peeling method, the normal growth of Eucommia annular ring peeling, strengthen management, about a month or so can regenerate the basic structure of normal new skin; then after three years of normal growth, the new