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马占相思木材酸碱性质与抽提物含量及其相关性(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2004年02期
Page:
64-66
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Relativity of Content of Extractive with Acid-alkali Property of Acacia mangium Willd Wood
Article ID:
1000-2006(2004)02-0064-03
Author(s):
LIANG Hong-wen
College of Forestry Guangxi University,Nanning 530001,China
Keywords:
Acacia mangium WilldAcid-alkali property of woodsContent of extractiveCorrelative analyzed
Classification number :
S781.29;S792
DOI:
10.3969/j.jssn.1000-2006.2004.02.016
Document Code:
A
Abstract:
The content of extractive and acid-alkali property of Acacia mangium Willd woods were analyzed and their relationships were discussed.The result shows:(1)Acacia mangium Willd wood shows acidity and its pH is 5.34,the acid buffering capacity and alkali buffering capacity are 0.142 mmol and 0.053 mmol respectively,the extractive contents of cold-water,hot-water,1% NaOH and benzene-alcohol are 4.84%,5.75%,15.98% and 6.09% respectively.(2)the heartwood acid buffering capacities,the heartwood extractive contents of cold-water,hot-water,1% NaOH and benzene-alcohol are higher than sapwood,and decreased with the trunk height,the heartwood pH and alkali buffering capacity are lower than sapwood,and increased with the trunk height.(3)the pH shows negative correlation with the acid buffering capacity,the extractive contents of hot-water,1% NaOH and benzene-alcohol,and positive correlation with alkali buffering capacity and extractive content of cold-water.

References

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Last Update: 1900-01-01