摘要
在福建省沙县官庄国有林场营造3个杉木良种试验林,并逐年调查和分析生长量性状。结果表明,造林6a后,3个良种均生长良好,胸径年平均生长量均超过1.3 cm,树高年平均生长量均超过1.1 m。单株立木材积生长量大小顺序为:第3代种子园良种>红心杉良种>洋020无性系。洋020无性系的树高和高径比显著较大,而胸径显著较小。
Chinese fir （Cunninghamia plantation） experiment plantation with 3 varieties was established on Guanzhuang National Forest Farm of Shaxian County in 2008.Investigation and analysis were conducted on the plantation annually.The results showed that each variety grew well.The annual growth of diameter at breast height （DBH） and tree height were more than 1.3 cm and 1.1 m respectively.The ranking of individual volume was 3rd generation ＞ red-heartwood fir ＞ Yang 020 clones.Furthermore,the tree height and DBH/tree height of Yang 020 clones were significantly more than that of the other 2 varieties,and the DBH of Yang 020 clones was on the contrary.
出处
《林业科技开发》
北大核心
2015年第1期30-32,共3页
China Forestry Science and Technology
基金
福建省林木种苗科技攻关三期项目(闽林科[2009]4号)
关键词
杉木
良种
生长量
树高
Cunninghamia lanceolata
improved varity
superior clone
growth
height
