邓恩桉种源林分生长特性与聚类分析
Growth Characteristics and Cluster Analysis of Eucalyptus dunnii
梁丽虹 1蓝克佩 1尹明善 1黄晓露 2陈健波2
作者信息
- 1. 广西壮族自治区环江毛南族自治县华山林场，广西环江547100
- 2. 广西壮族自治区林业科学研究院，广西南宁530002; 国家林业局中南速生材繁育实验室，广西南宁530002; 广西优良用材林资源培育重点实验室，广西南宁530002
- 折叠
摘要
[目的]筛选适宜华山林场种植的优良种源，为邓恩桉良种选育提供基础依据。[方法]连续5年对华山林场10个邓恩桉种源的保存率和生长性状进行观测和分析。[结果]随林龄增加，种源平均保存率和平均胸径的增加幅度呈下降趋势，平均树高、平均单株材积的增长幅度呈上升趋势；受2013年风雪灾害影响，种源平均保存率在2．5～3．5年间下降幅度最大；4．5年时保存率和胸径最高为D9509，树高和单株材积最大为D9508。[结论]10个种源的分类和分级表明，种源D9508、D9509保存率高，生长性状较好。
Abstract
Objective] To screen the superior provenance planted in Huashan Forest Farm, and to provide basis for selective breeding of Eu-calyptus dunnii.[ Method] Preservation rates and growth characteristics of ten provenances of E.dunnii in Huashan Forest Farm were ob-served and analyzed for continuous five years.[ Result] With the increase of forest age, the average survival rate of provenance and the in-crease of average diameter at breast height showed a downward trend.Growth ranges of average plant height and average individual volume were on the rise.The average preservation rate of provenance showed the biggest drop in 2.5-3.5 years because of the snow disaster in 2013. At the stand age of 4.5, D9509 showed the best preservation rate and average diameter at breast height; D9508 showed the best plant height and individual volume.[ Conclusion] Classification of ten provenances shows that D9508 and D9509 have relatively high preservation rate and good growth trait.
关键词
邓恩桉/生长特性/聚类分析Key words
Eucalyptus dunnii/Growth characteristics/Cluster analysis引用本文复制引用
基金项目
中央财政林业科技推广示范资金项目(2015)
广西林业科技项目(桂林科字2016第16号)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据