摘要
福建武平帽布栲树林１０个主要树种年龄结构、生长过程和林分测树因子分析结果表明：栲树等８个树种属于稳定种群，而杉木和马尾松属于衰退种群。栲树树高生长最大值出现在３０～３６年生，直径生长最大值出现在３６～４０年生，材积生长在２６年生以后逐渐加快，到４０年生时尚未达到最大值。该林分胸径大于４２ｃｍ以上的材积比例最大。栲树株数量多，材积百分比居第２位，马尾松株数虽少，但材积百分比居第１位。择伐对林分多样性指数影响不大，伐前、伐后近相等。采用皆伐，轮伐期为４２ａ以上，而采用择伐，轮伐期为１８ａ。
This paper deals with age structure,growth
process and dendrometrical analysis of dominant species with importance value more
than 10 in Castanopsis fargesii community in Maobu,Fujian.The results showed that
Castanopsis fargesii,Machilus pauhoi,Castanopsis nigrescence,Cinnamomum
micranthum,Daphniphyllum oldhamii,Cyclobalanoposis glauca,Castanopsis
juncunda,Phoebe bournei belonged to stable populations,and Cunninghamia lanceolata
and Pinus massoniana belonged to decline populations.Castanopsis fargesii had the
highest increments in height and diamenter at the age of 3036 years and 3640 years
respectively.The volume growth of Castanopsis fargesii speeded up at age of 26 years,
but didnt reach the highest increment before 40yearold.The volume of trees with the
DBH more than 42 cm in this forest occupied the greatest production.The species with
the greatest number was Castanopsis fargesii.Pinus ranked first in volume in spite of
fewer number.Selection cutting made little effect on diversity.The rotation period was
about 18 years if by selection cutting,and it would be 42 years if by clear cutting.
出处
《浙江林学院学报》
CSCD
1999年第2期151-156,共6页
Journal of Zhejiang Forestry College
基金
福建省教育委员会基金
关键词
栲树
龄级
林分组成
种群
多样性指数
择伐
Castanopsis fargesii
age class
stand structure
populations
diversity
factors
selection cutting massoniana
