文献类型：期刊文献

中文题名：楸树心材与边材的生长特征及变异规律

英文题名：Growth Characteristics and Variation of Heartwood and Sapwood of Catalpa bungei

作者：邓丽萍[1] 任素红[1] 吕建雄[1] 王玉荣[1] 任海青[1] 赵荣军[1]

第一作者：邓丽萍

机构：[1]中国林科院木材工业研究所

年份：2019

卷号：33

期号：4

起止页码：9-13

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：中央级公益性科研院所基本科研业务费专项资金“珍贵阔叶树心边材结构与性质对加工利用的影响机制”(CAFYBB2017ZX003);“十三五”国家重点研发计划资助“木材细胞壁结构调控对性能的影响机制”(2017YFD0600202)

语种：中文

中文关键词：楸树;心材;边材;生长特征;变异规律

外文关键词：Catalpa bungei;heartwood;sapwood;growth characteristics;variation

分类号：S781.1;S792

摘要：为系统了解珍贵阔叶树楸树心材与边材的生长特征及边心材转化规律,采用树木年轮分析仪对5株楸树不同树高处的圆盘进行年轮数、宽度等生长特征测定,建立心材与树木各生长量之间的回归模型。结果表明:楸树年轮宽度在10~15年达到峰值,可持续10年左右;心材起始树龄为5.26a,心材形成速率为0.90轮/a;属于生长收获周期短、心材形成时期较早且形成速率较快的树种。
To better understand growth characteristics of heartwood and sapwood and variation in heartwood formation of Catalpa bungei,a series of experiments were conducted to measure ring number,and widths of heartwood and sapwood at different tree heights by using tree-ring measuring station.A regression model of relationship between heartwood and tree growth was established.The results showed that annual ring widths of the trees reached peak at the 10th^15th year and could maintain the peak in 10 years.The heartwood started to form at age 5.26 a,and the heartwood growth rate was 0.90 rounds/a.It was concluded that Catalpa bungei is a hardwood species with a short growing and harvesting period,an early heartwood forming period and a fast growing rate.