摘要
为了解间伐对彰武小钻杨生长的影响,采用按断面积49.8%、35.5%、31.8%和对照4种间伐强度处理开展抚育间伐试验。结果表明:不同间伐强度的林分,在平均胸径、平均树高、平均胸高断面积和平均单株材积均有显著差异。12年生林分,间伐强度49.8%、35.5%和31.8%林分的平均胸径分别为对照的1.22、1.16和1.09倍,平均树高分别为对照的1.11、1.09和1.08倍;平均胸高断面积分别为对照的1.48、1.37和1.19倍,平均单株材积分别为对照的1.60、1.47和1.27倍。
In order to understand the effect of thinning on the growth of Populus × xiaozhuanica cv.‘Zhangwu',a thinning experiment was conducted by four thinning intensities with the cutting area of 49.8%,35.5%,31.8% and the control.The results showed that there were significant differences in mean diameter at breast height,average tree height,average cross-sectional area at breast height and average individual volume of timber in the stands with different thinning intensity.In the 12-year growth stand with thinning intensity of 49.8%,35.5% and 31.8%,the mean diameter at breast height was 1.22,1.16 and 1.09 times that of the control,respectively;average tree height was 1.11,1.09 and 1.08 times that of the control,respectively;average cross-sectional area at breast height was 1.48,1.37 and 1.19 times that of the control,respectively;average individual volume of timber was 1.60,1.47 and 1.27 times that of the control,respectively.
作者
李玉航
刘广
王恩利
王润国
韩双双
Li Yuhang;Liu Guang;Wang Enli;Wang Runguo;Han Shuangshuang(Liaoning Research Institute of Sandy Land Control and Utilization,Fuxin 123000,China;Suihua Institute,Heilongjiang Forestry and Grassland Survey and Planning and Design Institute,Suihua 152000,China)
出处
《防护林科技》
2023年第4期35-37,共3页
Protection Forest Science and Technology
关键词
彰武小钻杨
间伐强度
生长量
Populus×xiaozhuanica cv.‘Zhangwu’
thinning intensity
amount of growth
