四种杨属植物的热值及灰分含量的比较  

Comparison of caloric values and ash contents in the four Populus L. species

作　　者：刘灿[1] 李宏[1] 

机构地区：[1]新疆农业大学林学与园艺学院,新疆乌鲁木齐830052

出　　处：《中南林业科技大学学报》2010年第10期24-28,共5页Journal of Central South University of Forestry & Technology

基　　金：国家973项目"二氧化碳植物吸收减排的基础研究"的子课题"高效固碳减排树种;能源植物筛选及规模化育苗和栽培理论研究与应用"(项目编号:2006CB705809-2)

摘　　要：对新疆克拉玛依地区的胡杨(P.euphraticaOliv.)、俄罗斯杨(Populus.Russkii)、新疆杨(P.albavar.pyramidalis)、银×新杨(Populus alba×Populus bolleana),茎、枝、根热值和灰分含量进行研究。结果表明:(1)4种杨属植物不同组分灰分含量变化趋势没有一定的规律性,但各组分皮的灰分含量均大于木质的灰分含量;(2)4种杨属植物不同组分的干质量热值和去灰分热值变化相同,均为枝>茎>根;(3)4种杨属植物不同部位木质的干重热值和灰分含量没有显著的线性相关(P>0.01),不同部位皮的干重热值和灰分含量具有显著的线性相关(P<0.01);(5)4种杨属植物热值各组分木质和皮的差异不显著(P>0.01)。The caloric value and ash content found in the branch,stem,root of the four Populus L.species（P.euphratica Oliv.,Populus.Russkii,P.alba var.pyramidalis,Populus alba×Populus bolleana,） Were studied in Karimy of Xingjing Uighur Autonomous Region.The results show：（1）During four Populus L.species different composes development stages no regular pattern in changing trends were found in ash content,but the ash content skin was bigger than in woodiness for different composes.（2） The caloric value and ash-free caloric of dry mass of four Populus L.species different composes were in the same orders： branch〉stem〉root.（3） Gross caloric values were not correlated remarkably with ash contents（P〉0.01） in the woodiness of different parts of four Populus L.,and correlated remarkably with ash contents（P〈0.01） for bark at different parts.（5）The caloric values have not remarkably difference in woodiness and bark of four Populus L.species different composes.

关 键 词：热值 干重热值 灰分含量 去灰分热值 

分 类 号：S792.11[农业科学—林木遗传育种]