摘要
对6个不同年龄(16、24、32、39、48、55 a)栓皮栎4个器官(干、皮、枝、叶)的苯—乙醇抽出物质量分数及半纤维素质量分数与热值的关系进行研究,利用SPSS18.0进行偏相关分析。结果表明:不同器官栓皮栎热值、苯—乙醇抽出物、半纤维素均具有极显著差异。对不同器官苯—乙醇抽出物、半纤维素与热值的相关性分析,得到苯—乙醇抽出物与干质量热值、去灰分热值均呈正相关,未达到显著水平;总体上半纤维素与干质量热值和去灰分热值相关性也不显著,而枝的半纤维素质量分数与去灰分热值呈显著正相关。栓皮栎不同器官干质量热值和去灰分热值总体趋势均为:皮>叶>枝>干;不同器官苯—乙醇抽出物和半纤维质量分数分别表现为:叶>皮>枝>干,干>枝>叶>皮。24 a栓皮栎苯乙醇抽出物质量分数最高,利于能源林生产。
An experiment was conducted to study the relationships between calorific value and contents of benzene-ethanol extractives and hemicellulose in four organs（bark,branches,leaves,trunk） of Quercus variabilis of six tree ages（16,24,32,39,48,55 years） by means of SPSS18.0 for partial correlation analysis.Results indicate that there are highly significant differences in calorific value and contents of benzene-ethanol extractives and hemicellulose in different organs of Q.variabilis.The content of benzene-ethanol extractives is positively correlated with gross caloric value and ash-free caloric value（not reaching the significance level of 0.05）.There are insignificant relationships between hemicellulose content and gross caloric value and ash-free caloric value,but there is a significantly positive correlation between hemicellulose content in branches and calorific value.The gross caloric value and ash-free caloric value in the bark of Q.variabilis are the highest,followed by leaves,branches,and trunk.The content of benzene-ethanol extractives in the leaves is the highest,followed by bark,branches,and trunk.The hemicellulose content in the trunk is the highest,followed by branches,leaves,and bark.The content of benzene-ethanol extractives from 24-year-old Q.variabilis was the highest,which can be used as forests for energy production.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2012年第6期48-51,98,共5页
Journal of Northeast Forestry University
基金
"十一五"国家科技支撑计划资助项目(2006BAD18B0103)
教育部高等学校科技创新工程重大资助项目(706007)
"985"科技创新平台
关键词
栓皮栎
热值
苯—乙醇抽出物
半纤维素
Quercus variabilis
Calorific values
Benzene-ethanol extractives
Hemicellulose
