Physico-chemical characteristics of waterlogged archaeological wood

被引：36
作者：
Passialis, CN
机构：
[1] Aristotelian Univ. of Thessaloniki, Sch. of Forest. and Nat. Environment, Thessaloniki
[2] Aristotelian Univ. of Thessaloniki, Sch. of Forest. and Nat. Environment
来源：
HOLZFORSCHUNG | 1997年 / 51卷 / 02期
关键词：
waterlogged archaeological wood; lignin; NaOH solubility; crystallinity index; Picea abies; Pinus silvestris; Quercus sp;
D O I：
10.1515/hfsg.1997.51.2.111
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
Waterlogged samples 300 to 100,000 years old of Picea abies, Pinus silvestris and Quercus sp. from northern Europe (Norway, Sweden) that had been preserved in a glacier, burial grounds, house settlements, harbour installations and sunken ships in the sea were examined for changes in physico-chemical characteristics as compared to recent wood. The results showed that in waterlogged wood of all species the solubility in 1% NaOH (8.39-22.85%) was found to be higher than that of recent wood (3.84-5.57%). Ash content varied between 1.37-7.12% in old wood and was much higher than in fresh wood (0.31-0.65%). Klason lignin in old wood (25.71-72.40%) was higher than in fresh wood (20.31-30.95%) while crystallinity index (12.79-33.69%) was found to be lower than in fresh wood (34.56-40.20%). Increasing lignin content in old wood resulted in reducing the crystallinity index up to 3.1 times.
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页码：111 / 113
页数：3
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