Abstract: The L9 (34) orthogonal design was applied to test the effects of afforestation method, slope position and canopy density with 3 levels for each treatment on the growth of Piper kadsura seedling under forest. The results showed that: afforestation method, slope position and canopy density have significant influence on biomass fresh weight, the total vine length and the number of primary branches; afforestation method has a significant on the main stem base diameter; primary and secondary factors were afforestation method, canopy density and slope position on promoting biomass fresh weight, the total vine length and the number of primary branches; the optimal combination of promoting biomass fresh weight, the total length of vine, the number of primary branches and the main stem base diameter of P. kadsura are light matrix container seedling planting, downslope, canopy density 0.5—0.7.

Key words: Piper kadsura, afforestation method, slope position, canopy density, growth

摘要： 用L9 (34)正交试验设计，分析造林方式、坡位和林冠层郁闭度对林下细叶青蒌藤生长的影响。结果表明，造林方式、坡位和林冠层郁闭度等因素对细叶青蒌藤的生物量鲜质量、总蔓长度和一级侧枝数量有显著影响。造林方式对细叶青蒌藤的主蔓基径有显著影响；促进生物量鲜质量、总蔓长度和一级侧枝数量的因子主次顺序均为造林方式、林冠层郁闭度、坡位；对主蔓基径因子影响主次顺序为造林方式、坡位、林冠层郁闭度。促进细叶青蒌藤生物量鲜质量、总蔓长度、一级侧枝数量与主蔓基径的最优组合均为：轻基质容器苗造林，下坡，林冠层郁闭度0.5～0.7。

关键词: 细叶青蒌藤, 造林方式, 坡位, 林冠层郁闭度, 生长