摘要
本文对广西大明山天坪采伐区天然次生林中９个优势树种种群结构和动态进行了研究。结果表明：１．次生林的优势种群为罗浮栲、拟赤杨、大果蜡瓣花、光叶石栎、粗皮桦和毛桂等；２．不同树种种群的大小结构类型明显不同，常绿树种种群属增长型和稳定型，而落叶树种种群属于始衰型和中衰型；３．罗浮栲、拟赤杨、千年桐、光叶石栎和羊角杜鹃的种群分布格局趋于随机型，而大果蜡瓣花、毛桂、长叶木姜子和粗皮桦种群趋于集群分布；４．种群分布格局随大小结构变化具有由集群型向随机型过渡的倾向。
The structure and dynamics of 9 dominant tree populations in natural secondary forest in Daming Mount Tiaping Cutting block of Guangxi were studied' The results are as follows:1. The dominant tree populations in the secondary forest are Castanopsis fabri, Alni-phyllum fortunei, Vernicia monotana, Corylopsis multifiora, Lithocarpus hancei, Rhododendron caraleriei, Betula utills, Cinnanmomum appelianum, and Litsea elongata.2. The size and structures of different tree populations are very different. The evergreen tree populations are belong to growing type and stational type, but the deciduous tree populations are belong to initial senescent type and middle senescent type.3. The spatial pattern of Castanopsis fabri, Alniphyllum fortunei, Vernicia monotana,Lithocarpus hancei and Rhododendron caraleriei populations are random (Poisson) type,while Corylopsis multiflora, Cinnanmomum appelianum, Litsea elongata and Batula utilis populations are contagious type.4. The spatial patterns of the populations show a tendancy from contagious type to random type with change of the size and structure.
基金
国家自然科学基金
关键词
次生林
种群结构
种群动态
大明山
广西
secondary forest
dominant tree
population structure
population dynamics
Daming mount
Guangxi
