为了发掘乡土树种,我所自1977年开始研究光皮桦的育苗技术,1979年进行造林试验,现将试验情况初报于下: 光皮桦Betula wuminifera H winkl为落叶大乔木,高达28m,胸径80cm,属浅根阳性树种。适应性强,喜湿润肥沃的酸性砂壤土。分布于海拔400—1,090m。经驯化后,在中低山及低丘陵地区造林成活率均较高,生长良好。 In order to explore the local tree species, we have been studying the seedling raising technology of Betula luminifera since 1977 and the afforestation experiment in 1979. The test results are first reported below: Betula wuminifera H winkl is a deciduous tree with a height of 28m and a diameter at breast height 80cm, is a shallow root-positive tree species. Adaptable, like moist and fertile acidic sandy loam. Distributed at an altitude of 400-1,090 m. After domestication, the survival rate of afforestation in the middle and low mountains and low hilly areas are higher and grow well.