摘要
银杉（Ｃａｔｈａｙａ ａｒｇｙｒｏｐｈｙｌｌａ）在林窗内和非林窗群落内均占有最大的重要值，说明银杉是典型的林窗更新方式。银杉个体在林窗内呈集群分布，林窗边缘往往集中了较多的银杉植株。林窗内银杉直径分布中，出现胸径＞ ８ｃｍ 及胸径＜３ｃｍ 的高峰和３～７ｃｍ 的低谷。对最近１０ａ 银杉幼树每年高生长量的研究发现，林窗内和荫蔽林冠下的结果差异显著，林窗内的幼树高生长快于荫蔽林冠下。
The importance value of Cathaya argyrophylla lists first in both gaps and no gaps, indicating that this plant is the typical gap regeneration mode species. The individuals of C. argyrophylla are contagiously distributed and many of them gather near the edges of gaps. The DBH distribution reaches to a high point when DBH >8cm or DBH <3cm and it reaches to a low point when 3< DBH <7cm. The annual height growth in latest 10 years was significantly different in gaps and under closed canopies. Young trees grow faster in gaps than that under canopies.
出处
《生态学报》
CAS
CSCD
北大核心
1999年第6期775-779,共5页
Acta Ecologica Sinica
基金
国家自然科学基金
关键词
银杉
林窗
更新
Cathaya argyrophylla
canopy gaps
regeneration
