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

作　　者：赖建明 LAI Jianming(Fujian Provincial Mingxi State-owned Forest Farm,Sanming 265200,Fujian,China)

机构地区：[1]福建省明溪国有林场,福建三明365200

出　　处：《安徽林业科技》2024年第2期39-42,共4页Anhui Forestry Science and Technology

基　　金：三明市林业科技项目“马尾松林下南方红豆杉更新培育技术研究”(编号:明林综〔2020〕42号)。

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。In this paper,experiments were made on planting ofTaxus wallichiana var.Mairei inPinus massoniana forest of different densities to study the effects of mixed forest on the growth ofTaxus wallichiana var.Mairei.The results showed that 3 years after the planting,the tree height,basal diameter,tree height increment,basal diameter increment and survival rate ofTaxus wallichiana var.Mairei were the highest in thePinus massoniana forest at density 0.7,followed by density 0.6 and 0.8,much better than the other densities.TheTaxus wallichiana var.Mairei trees planted for 3 years in thePinus massoniana forest 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 medium 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 

分 类 号：S791.49[农业科学—林木遗传育种]