邓恩桉木材灰分和抽提物含量及其变异规律  

Contents of Ash and Extracts of Eucalyptus dunnii Woods and Variation Rules

作　　者：刘媛[1] 卢陆峰 郭东强[1] 卢翠香[1] 陈健波[1] Liu Yuan;Lu Lufeng;Guo Dongqiang;Lu Cuixiang;Chen Jianbo(Guangxi Forestry Research Institute,Key Laboratory of National Forestry and Grassland Administration on Cultivation of Fast Growing Timber in Central South China,Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Nanning,Guangxi 530002,China;Huashan Forest Farm,Huanjiang,Guangxi 547100,China)

机构地区：[1]广西壮族自治区林业科学研究院中南速生材繁育国家林业和草原局重点实验室广西优良用材林资源培育重点实验室,广西南宁530002 [2]环江毛南族自治县华山林场,广西环江547100

出　　处：《广西林业科学》2022年第6期845-849,共5页Guangxi Forestry Science

基　　金：中央财政林业科技推广示范项目([2021]TG16号);广西林业科技项目(桂林科字[2016]第16号)。

摘　　要：为给制浆造纸原料培育提供参考,以11年生邓恩桉(Eucalyptus dunnii)木材为研究对象,研究邓恩桉木材灰分、水、苯醇溶液和1%NaOH抽提物含量及其在不同树干部分和株间的变异规律,分析其制浆造纸的性质。结果表明,灰分、冷水抽提物、热水抽提物、苯醇抽提物和1%NaOH抽提物含量分别为0.46%、1.89%、2.39%、1.15%和12.23%。邓恩桉木材灰分、热水抽提物和苯醇抽提物含量在不同树干部位均差异极显著,冷水抽提物和1%NaOH抽提物含量均差异不显著;灰分、冷水抽提物、热水抽提物和苯醇抽提物含量在株间差异不显著,1%NaOH抽提物含量差异极显著。邓恩桉木材灰分和不同抽提物含量均保持在平均或较低水平,符合制浆造纸原料的要求。In order to provide reference for cultivation of pulp and paper raw materials,taking 11-year-old Eucalyptus dunnii woods as research objects,contents of ash,water,benzene-ethanol and 1%NaOH extracts of E.dunnii woods and variations in different stem parts and plants were studied.Characteristic of pulp and paper was analyzed.Results showed that contents of ash,cold water extracts,hot water extracts,benzene-ethanol ex⁃tracts and 1%NaOH extracts were 0.46%,1.89%,2.39%,1.15%and 12.23%,respectively.Contents of ash,hot water extracts and benzene-ethanol extracts of of E.dunnii woods were extremely significantly different in different stem parts,while contents of cold water extracts and 1%NaOH extracts were not significantly different;contents of ash,cold water extracts,hot water extracts and benzene-ethanol extracts were not significantly dif⁃ferent among plants,and 1%NaOH extracts contents were extremely significantly different.Contents of ash and different extracts of E.dunnii woods maintained at average or lower levels,which met requirements of pulp and paper raw materials.

关 键 词：抽提物 变异 制浆造纸 邓恩桉 

分 类 号：S781.41[农业科学—木材科学与技术]