欧美107杨速生丰产林不同修枝强度的研究  

Pruning by Different Intensities for Populus×canadensis 'Neva'

作　　者：高军[1] 顾宇书[1] 关明东[1] 林永启[1] 周志权[1] 张志通 

机构地区：[1]辽宁省林业科学研究院,辽宁沈阳110032 [2]抚顺钢山林场

出　　处：《防护林科技》2009年第4期23-24,共2页Protection Forest Science and Technology

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.

关 键 词：欧美107杨 丰产林 修枝强度 

分 类 号：S727.1[农业科学—林木遗传育种]