摘要
以大花序桉为材料,调查砍伐后试验林的萌芽率、萌芽点数、萌芽条数和萌芽高度。结果表明:大花序桉萌芽点数受地理种源影响,北部种源显著高于南部种源,受坡位、伐桩直径和伐桩高度影响不显著;萌芽条数与伐桩直径和伐桩高度呈正相关,受地理种源和坡位影响不显著;萌芽高度较敏感,北部种源显著高于南部种源,上坡位显著高于中坡位,与伐桩直径和伐桩高度呈负相关。
Coppice development in Eucalyptus cloeziana was analysed by examining the rate of coppice sprouting,coppice points per stump,number of coppice stems per stump and the subsequent height of coppice sprouts.The results showed that:the number of coppice points of E.cloeziana was affected by geographical provenance origins,with trees originating from the northern provenance having significantly higher numbers than trees originating from the southern provenance.In contrast,coppice was not significantly affected by slope position,stump diameter or stump height.The number of coppice stems was positively correlated with stump diameter and stump height,but not significantly affected by geographical provenance and slope position.Meanwhile,the height of coppice sprouts was more sensitive to various factors,with trees of northern provenance origins having significantly higher coppice sprouts than trees originating from the southern provenance,and trees growing on upper slope positions had significantly higher coppice sprouts than those on the middle slope.Coppice sprout height was found to be negatively correlated with the diameter and height of the stump.
作者
邓紫宇
陈莹莹
蒙海勤
卢翠香
卢晨升
赵玉清
陈健波
DENG Ziyu;CHEN Yingying;MENG Haiqin;LU Cuixiang;LU Chensheng;ZHAO Yuqing;CHEN Jianbo(Guangxi Forestry Research Institute,Nanning 530002,Guangxi,China;Guangxi Yulin Forestry Research Institute,Yulin 537501,Guangxi,China;College of Forestry,Nanjing Forestry University,Nanjing 210037,Jiangsu,China)
出处
《桉树科技》
2020年第1期33-35,共3页
Eucalypt Science & Technology
基金
广西林业科技项目(桂林科字[2016]第2号)
广西科技重大专项(桂科AA17204087-6)。
关键词
大花序桉
萌芽性能
差异
Eucalyptus cloeziana
coppice performance
difference
