Abstract: Effects of different management and canopy density on height, DBH (diameter at breast height), volume of individual tree of Phoebe bournei was carried out by randomized block design. The results showed that three kinds of multiple layered patterns of interplantation extremely significantly improved the growth of P. bournei compared with cutting-blank forestation. The height, DBH and the current annual volume of individual tree and average increment showed a yearly increase in 1—12 years, showing 1—12 years old was fast growing stage. The multiple layered pattern of interplanting P. bournei with long-term canopy density at 0.4 to 0.5 would greatly help the growth of P. bournei and would be one of the key techniques managing the multiple layered P. bournei forest.

Key words: Phoebe bournei, Pinus massoniana, interplantation, multiple layered forest management, canopy, density control

摘要： 采用完全随机区组设计，研究马尾松林下套种闽楠，不同经营模式与林冠层郁闭度调控对闽楠树高、胸径和单株材积影响。结果表明，三种林下套种的复层林经营模式较采伐迹地上造林均可显 著促进闽楠生长。闽楠人工林在1～12龄阶段树高、胸径和单株材积连年生长量及平均生长量均呈逐年上升的趋势，处在生长速生期。采用林下套种闽楠复层林经营模式，并进行林冠层郁闭度调控，长期保持林冠层郁闭度在0.4～0.5左右，可显著促进闽楠生长，是进行闽楠复层林经营的主要关键技术。

关键词: 闽楠, 马尾松, 林下套种, 复层林经营, 林冠层, 郁闭度调控