邓恩桉种源幼龄材树皮率·心材率和基本密度变异  

Bark and Heartwood Percentage and Density of Eucalyptus dunnii

作　　者：雷仕锐 袁寄威 陈海泉 周先梅 尚正洁 卢翠香[3] LEI Shi-rui;YUAN Ji-wei;CHEN Hai-quan(Shitang Forest Farm in Hengzhou City,Guangxi,Nanning,Guangxi 530000)

机构地区：[1]广西横州市石塘林场,广西南宁530000 [2]广西林业集团桂钦林浆纸有限公司,广西南宁530022 [3]广西壮族自治区林业科学研究院/南宁桉树森林生态系统广西野外科学观测研究站/广西优良用材林资源培育重点实验室,广西南宁530002

出　　处：《安徽农业科学》2024年第3期103-105,114,共4页Journal of Anhui Agricultural Sciences

基　　金：广西林业科技推广示范项目(桂林科研[2021]27号);中央财政林业科技推广示范项目([2021]TG16号)。

摘　　要：采用质量法、体积法及排水法测定了邓恩桉种源幼龄材树皮率、心材率和基本密度,结果表明:5年生邓恩桉重量树皮率、体积树皮率、心材率、基本密度分别为17.003%、15.139%、16.950%、0.484 g/cm^(3)。3个性状在不同种源间差异不显著。10个种源木材基本密度属于中等密度,满足纤维用材要求。The bark and heartwood percentages and the dendity of Eucalyptus dunnii were examined.The green volume was tested by drainage method,and bark percentage included bark volume percentage and bark quality percentage.The research showed that the bark percentage,heartwood percentage and density of 5 year old Eucalyptus dunnii were 17.003%,15.139%,16.950%,0.484 g/cm^(3).There was no significant difference in bark percentage,heartwood percentage and density among different provenances.The basic density of wood from 10 provenances is medium density,which meets the requirements of fiber materials.

关 键 词：邓恩桉 树皮率 心材率 基本密度 变异 

分 类 号：S792.39[农业科学—林木遗传育种]