南方红豆杉在不同郁闭度马尾松林下生长状况的研究
Study on the Growth of Taxus wallichiana var.mairei in Pinus massoniana Forest of Different Densities
赖建明1
作者信息
- 1. 福建省明溪国有林场,福建 三明 365200
- 折叠
摘要
为研究混交造林对南方红豆杉生长的影响,开展了不同郁闭度马尾松林下种植南方红豆杉试验.结果表明,不同郁闭度马尾松林下种植南方红豆杉3年后,0.7郁闭度树高、地径、树高同比增长量、地径同比增长量和保存率等指标表现最好,0.6郁闭度、0.8郁闭度次之,其余处理较差.通过聚类分析,可将5个郁闭度马尾松林下种植3年后的南方红豆杉分成3个类群,A类群是0.7郁闭度,生长速度较快;B类群是0.6郁闭度、0.8郁闭度,生长速度中等;C类群是0.4郁闭度、0.5郁闭度,生长速度较慢.
Abstract
In this paper,experiments were made on planting of Taxus wallichianavar.Maireiin Pinus massonianaforest of different densities to study the effects of mixed forest on the growth of Taxus wallichianavar.Mairei.The results showed that 3 years after the planting,the tree height,basal diameter,tree height increment,basal diameter increment and survival rate of Taxus wallichianavar.Mairei were the highest in the Pinus massonianaforest at density 0.7,followed by density 0.6 and 0.8,much better than the other densi-ties.The Taxus wallichianavar.Maireitrees planted for 3 years in the Pinus massonianaforest of 5 densities could be divided into 3 groups using cluster analysis,with Group A at density 0.7 having the highest growth rate,Group B at densities 0.6 and 0.8 having a me-dium growth rate,Group C at densities 0.4 and 0.5 having the slowest growth rate.
关键词
南方红豆杉/马尾松/郁闭度/生长量Key words
Taxus chinensis var.Mairei/Pinus massoniana/Canopy density/Increment引用本文复制引用
基金项目
三明市林业科技项目(明林综[2020]42号)
出版年
2024
NETL
NSTL
万方数据