详细信息
文献类型:期刊文献
中文题名:黑木相思木材化学性质株内变异研究
英文题名:Within-Tree Variation of Chemical Properties of Acacia melanoxylonWood
作者:周凡[1] 付宗营[1] 高鑫[1] 周永东[1] 晏婷婷[1]
第一作者:周凡
机构:[1]中国林业科学研究院木材工业研究所,北京100091
年份:2021
卷号:35
期号:3
起止页码:25-30
中文期刊名:木材科学与技术
外文期刊名:China Wood Industry
收录:CSTPCD;;北大核心:【北大核心2020】;
基金:中央级公益性科研院所基金项目“火力楠、黑木相思无性系高效培育和木材干燥技术”(CAFYBB2018ZB004)。
语种:中文
中文关键词:黑木相思;化学性质;纵向变异;心材;边材
外文关键词:Acacia melanoxylon;chemical property;longitudinal variation;heartwood;sapwood
分类号:S792.99;S781
摘要:研究我国黑木相思木材化学性质的株内变异规律,为其加工利用提供基础数据。对广东韶关产28 a黑木相思木材进行化学组成测定,其综纤维素(α纤维素、半纤维素)、酸不溶木质素和抽出物(冷水、热水、1%氢氧化钠、苯醇)的含量在株内纵向上的变异规律不明显;相较于边材,心材的综纤维素含量略低,酸不溶木质素含量略高,抽出物含量更高,pH值更低。实际加工利用中需考虑其心材和边材比例对原料化学组成的影响。
The within-tree variation of wood chemical properties was evaluated for Acacia melanoxylon grown in China.The results showed that the longitudinal variation of the holocellulose(αcellulose and hemicellulose),acid-insoluble lignin,and extractive(cold water,hot water,1%sodium hydroxide and benzene alcohol)contents was not significant.Compared with the sapwood,the heartwood contained slightly lower holocellulose(αcellulose and hemicellulose)contents,slightly higher acid-insoluble lignin contents,higher extractive contents,and a lower pH value.The effect of the proportion of heartwood and sapwood within the tree on chemical composition contents should be considered as a quality characteristic in the processing application of Acacia melanoxylon wood.
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