东北12种灌木热值与碳含量分析  

Caloric Values and Carbon Contents of Twelve Species of Shrubs in Northeast China

作　　者：王立海[1] 孙墨珑[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2008年第5期42-42,46,共2页Journal of Northeast Forestry University

基　　金：国家科技支撑项目(2006BAD03A08-05)

摘　　要：采用快速灰化法、量热法、吸收质量法分别测定东北12种灌木的树叶、树枝、干皮的灰分含量、去灰分热值和碳含量。不同器官的灰分的质量分数为：树叶0.43%-0.88%,树枝0.46%-2.37%,干皮0.47%-2.55%;去灰分热值为：树叶20.66-21.90kJ·g^-1,树枝20.10-21.39kJ·g^-1,干皮19.75-21.01kJ·g^-1;碳的质量分数为：树叶43.41%-44.80%,树枝44.82%-46.05%,干皮45.12%-46.25%。12种灌木不同器官的灰分含量、去灰分热值和碳含量均具有显著差异（t检验,p〈0.01）。Ash content, ash-free caloric value and carbon content of different organs of twelve species of shrubs in northeast China were studied by the quick determination method of ash content, the determination method of caloric values, and the determination method for volume fraction of absorbed CO2, respectively. Results showed that the ash contents in leaves, branch, and trunk with bark were 0.43% - 0.88%, 0.46% - 2.37%, 0.47% - 2.55%, respectively. The ash-free caloric values in leaves, branch, and trunk with bark were 20.66 -21.90, 20.10 -21.39, 19.75 -21.01 kJ·g^-1, respectively. The carbon contents in leaves, branch, and tnmk with bark were 43.41% -44. 80%, 44. 82% -46.05%, 45.12% - 46.25%, respectively. The differences in ash content, ash-free caloric value and carbon content are significant between differertt organs of twelve species of shrubs by t test.

关 键 词：灌木 灰分含量 去灰分热值 碳含量 

分 类 号：Q948[生物学—植物学] S718[农业科学—林学]