摘要
对广西东门林场7～43个月生尾巨桉连栽林分生长特性及土壤养分变化进行研究.结果表明:连栽尾巨桉林分胸径、树高和蓄积量均随着年龄的增长而明显增加,林分表现了早期强速生的特性.随连栽代数的增加,尾巨桉树高、胸径、蓄积的总生长量并没有出现下降的趋势,但其连年生长量已开始出现明显的衰退现象.
This thesis adopted the “time specific” and “fixed position” method to investigate synthetically the Eucalyptus urophylla × E. grandis plantation during 7-43 months old on the growth and development characteristics. The research results showed： the mean height, DBH, the individual volume and the growing stock increased distinctly with the increasing of stand ages. The E. urophylla × E. grandis wood manifested the strong - growing characteristics of early stage. The total growth of the height, DBH and the growing stock of E. urophylla × E. grandis didn＇ t descend with planting generation increasing. But the growth characteristics of E. urophylla × E. grandis plantation were affected by continuous- plating rotation, and the current increments had displayed the declining-trend.
出处
《林业科技》
北大核心
2005年第5期11-14,共4页
Forestry Science & Technology
基金
教育部留学回国人员科研启动基金资助[项目编号为:教外司留(1997)832]
广西教育厅资助项目
关键词
尾巨桉
连栽
生长量
生长效应
Eucalyptus urophylla × E. grandis plantation
Continuous planting
Growth increment
Growth effect
