摘要
笔者从幼苗的年龄结构和高度结构两方面研究了30年生油松纯林下天然更新幼苗的群落关系和分布格局，结果表明，随着群落演替，油松幼苗种群的年龄结构有明显变化，幼苗以7年生-8年生居多；幼苗主要集中在30cm以下种群高度上；幼苗随年龄和高度的增加数量逐渐减少，考虑其原因主要是人为干扰；油松天然更新幼苗的空间分布格局呈聚集分布。
Community relationship and distribution pattern of natural regeneration seedlings were studied with 30 years old Pinus tabulaeformis from age and height structure of seedlings. The results showed that age strncture of Pinus tabulaeformis seedlings changed obviouly and the seedlings were main 7 a or 8 a; community height of seedings focused under 30 cm; the number of seedings reduced with the increase of age and height and human disturbance maybe the reason; In general,the space distributions of Pinus tabulaeformis natural regeneration seedlings appeared the aggregating distribution.
出处
《山西林业科技》
2013年第3期18-19,22,共3页
Shanxi Forestry Science and Technology
关键词
油松
天然更新
群落关系
分布格局
Pinus tabulaeformis
Natural regeneration
Community relationship
Distribution pattern
