摘要
通过格氏栲林林窗调查分析，格氏栲种群在林窗群落内与非林窗内同样占有最大的重要值，表明格氏栲对林窗更新反应不显著，均能在林窗内外更新．研究显示，格氏栲个体在林窗内呈集群分布，种群的直径分布呈贝塔分布，林窗边缘集中了较多的格氏栲植株；在年龄分布结构上，格氏栲在林窗和非林窗内株数比重高峰均出现于10年以下和70年以上，低峰出现于10～70年间，表明格氏栲林存在严重断代现象．因此在经营管理中，有必要人促更新．
The investigation and analysis of gaps in Castanopsis kawakamii forests showed that the importance of C. kawakamii lied in both open and closed forests, which indicated that this species was not particularly sensitive to the recurrence of gaps, generated both inside existing openings and in closed forest canopies. The results showed that individual trees of C. kawakamii were lumped together in groups. DBH distribution of C. kawakamii population in the gaps fit a Beta distribution with many trees concentrated near the edge of the forest openings. Age structure of C. kawakamii, both in open and closed parts of the forests, was such that the largest number of trees was found either in the age class 〈 10 years or 〉 70 years. The smallest number of trees was found between the ages of ten and seventy years, which showed a serious imbalance in age structure of this species. It is concluded that, intervention on the part of the administration is necessary in management of C. kawakamii forests.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
2006年第3期14-19,共6页
Journal of Beijing Forestry University
基金
福建省自然科学基金资助项目(D0210016)
关键词
格氏栲
林窗
更新
Castanopsis kawakamii, canopy gaps, renewal
