摘要
在凤城宝山林场45年生日本落叶松冠下,研究营造红松果材兼用林的适宜密度,结果表明：以冠下4m×5m和带状5m×5m造林密度对树高生长量影响最大。适宜的造林密度有利于幼树的生长,防止由于过密而产生的偏冠现象,3年平均树高生长量较对照1.5m×1.5m提高21.8%~58.4.8%。
Optimal density of silviculturing fruit-timber of Larixkaempferi were studied by adopting three kinds of afforestation densities under 45-year-old Larixkaempferi in Baoshan Forest Farm of Fengcheng City.The afforest-ation densities （4 m × 5 m ＆ 5 m × 5 m）have the great effects on growth of tree height,which prevent the phe-nomenon of deviation crown caused by too dense;the suitable planting density is conducive to the growth of young forest;3-year-old mean height growth increase by 21.8%-58.48% compared to the control （1.5 m × 1.5 m）.
作者
张英明
Zhang Yingming(Forest Inventory and Planning Institute of Fengcheng City,Dandong 118200, China)
出处
《防护林科技》
2016年第7期28-29,共2页
Protection Forest Science and Technology
关键词
落叶松冠下
造林密度
红松幼林
生长量的影响
under crown of Larix kaempferi
Planting density
young saplings of Pinus koraiensis
the effect of growth
