摘要
通过对安溪县福前农场造林密度为2 505株.hm-2的9年生秃杉林分设置极强度间伐(60%)、强度间伐(40%)、弱度间伐(20%)及不间伐(对照)4个处理,间伐3 a后,调查林分胸径、树高、单株材积、蓄积量等指标,研究不同间伐强度对其生长量的影响。结果表明:不同间伐强度对林分胸径生长、单株材积、蓄积量的影响都达到显著水平,而对树高生长有一定影响,但差异不显著。综合分析表明,对9年生的秃杉林分,选择强度间伐(间伐总株数的40%)进行抚育间伐较为合适。
4 sorts of intensity of controls with extremely strong thinning （60 % ）, strong thinning （40 % ）, and weak thinning （20 % ） and control without thinning were designed in the 9-years-old Taiwania flousiana forest with the density of 2 505 trees·hm^-2 in Anxi Fuqian Forest Farm. After 3 years long of thinning, the stand dbh, height, single-tree volume, stocking indexes were investigated, the effects of different thinning intensities on the growth were studied. The results showed the effects of different thinning intensities on the stand dbh growth, single-tree volume, and stocking were significant, whereas there were a certain effects on the tree height growth, but the differences weren＇ t significant. The synthetic analysis showed it was proper that strong thinning （40 % of total thinning tree number） was selected to conduct the tending thinning for 9-years-old T. flousiana stand.
出处
《福建林业科技》
2009年第2期235-237,共3页
Journal of Fujian Forestry Science and Technology
关键词
秃杉
间伐强度
树高
胸径
蓄积量
Taiwania flousiana
thinning intensity
tree height
dbh
stocking
作者简介
钱建新（1967-），男，福建安溪人，安溪云中山省级自然保护区工程师，从事森林培育及森林生态研究。
