摘要
通过对位于顺昌的14年生翅荚木人工林生物量与生产力的研究,结果表明:翅荚木人工林平均胸径19.8cm,平均树高22.4m,密度525株·hm^-2,平均单株生物量为181.26kg,乔木层生物量95.17t·hm^-2,各器官组成比例大小顺序为:干(62.51%)〉根(14.97%)〉皮(12.43%)〉枝(7.67%)〉叶(2.42%),活枝和活叶生物量主要分配在19~22m;人工林生态系统总生物量为96.25t·hm^-2,其中乔木层占98.98%,灌木层占0.24%,草木层占0.78%.与其它阔叶树相比,翅荚木平均木年平均生长量较高,是一种适合生产上推广的速生树种.
Biomass and productivity of a 14-year-old Zenia insignis plantation were studied in Shunchang, Fujian Province, China. The results showed that the average DBH (diameter at breast height) was 19.8 cm, average height was 22.4 m, stand density was 525 trees ·hm^-2, average single tree biomass was 181.26 kg and blomass of tree layer was 95.17 t ·hm^-2 with distribution followed the order stemwood (62.51%) 〉 root (14.97%) 〉 stembark (12.43%) 〉 branches (7.67%) 〉 leaves (2.42%). Living branches and leaves were mainly distributed in the 19-22 m layer. Of the total biomass of the plantation ecosystem (96.25 t · hm^-2), 98.98% was accounted for tree layer, 0. 24% shrub layer and 0. 78% herb layer. Compared with the biomass of other five broadleaf , the Zenia insignis has the highest average grower of average single tree biomass.
出处
《福建师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2006年第4期102-106,共5页
Journal of Fujian Normal University:Natural Science Edition
基金
福建省自然科学基金资助项目(B0310014)
关键词
翅荚木
人工林
生物量
生产力
Zenia insignis
plantation
biomass
productivity