巨桉等5种桉树的热值和灰分含量研究  

Ash Contents and Caloric Values of Five Eucalypt Species

作　　者：周群英[1] 陈少雄[1] 吴志华[1] 韩斐扬[1] 陈宏[2] 林良柱[2] 

机构地区：[1]国家林业局桉树研究开发中心,广东湛江524022 [2]广东省樟木头林场,广东东莞523616

出　　处：《热带作物学报》2009年第2期161-166,共6页Chinese Journal of Tropical Crops

基　　金：中央级公益性科研院所基本科研业务费专项--“桉树能源林栽培和主要品种木材热值研究”(No.CAFINT2008C13);国家林业局“948”项目--“优良能源树种丛生桉选育技术引进”(No.2007-4-12)资助。

摘　　要：对广东省东莞市樟木头林场6年生巨桉、柳桉、大花序桉、粗皮桉、托里桉5种桉树的灰分含量、干重热值和去灰分热值进行研究。结果表明:5种桉树的灰分含量、干重热值和去灰分热值因品种而异。各品种的灰分含量较低,在1.75%～3.96%之间,高低顺序为托里桉>粗皮桉>大花序桉>巨桉>柳桉;干重热值和去灰分热值分别在17.19～18.15kJ/g与17.90～18.59kJ/g之间,干重热值高低顺序为巨桉>柳桉>粗皮桉>大花序桉>托里桉,去灰分热值为粗皮桉>巨桉>柳桉>大花序桉>托里桉。单株干重热值与去灰分热值分别在783.30～1808.65MJ/株与804.97～1843.52MJ/株之间,排列顺序分别为巨桉>粗皮桉>大花序桉>柳桉>托里桉、巨桉>粗皮桉>大花序桉>托里桉>柳桉。综合分析,巨桉的灰分含量低、热值高,符合理想植物燃料的要求,且其总生物量大,可选作生物质能源树种。Five eucalypt species planted in Guangdong Zhangmutou Forest Farm were investigated in terms of biomass, and their ash contents and caloric values were determined. The results showed that there were differences in ash content, gross caloric value (GCV) and ash free caloric value (AFCV) among the 5 species. The ash contents were low, ranging from 1.75% to 3.96% in the decreasing order of E. torelliana>E. pellita>E. cloeziana> E. grandis> E. saligna; the gross caloric values (GCV) from 17.19 kJ/g ...

关 键 词：桉树 灰分含量 热值 生物量 

分 类 号：S792.39[农业科学—林木遗传育种]