摘要
对欧美107杨进行不同强度修枝试验,通过近7 a的观察研究,结果表明,不同强度修枝对欧美107杨的胸径、树高、材积、形率和形数、枝下高均有一定程度的影响,通过采取第3年、第5年进行中度修枝能够增加树木材积、增加树干圆满度、提高出材率,获得最大经济收益。
Priming tests by different intensifies on Populus x canadensis Neva＇ were conducted. Through nearly 7 years＇ observation ,result shows that ： pruning tests by different intensities have effects on DBH,tree height,volume, form quotient and form factor,clear bole height of Populus ×canadensis ‘Neva＇. Middle pruning intensity in the 3rd ＆ 5th year can increase volume, stem fullness ＆ outturn rate, obtain maximum financial income.
出处
《防护林科技》
2009年第4期23-24,共2页
Protection Forest Science and Technology
关键词
欧美107杨
丰产林
修枝强度
Populus × canadensis ＇ Neva＇
high-yield plantation
priming intensity
