摘要
以红花尔基地区沙地樟子松人工林为研究对象,研究林分密度与胸径、树高、生物量等林分因子之间的关系。结果表明,沙地樟子松林分密度对其林木生长因子的影响有显著相关性和规律性,随林分密度的递增,林分平均胸径、平均冠幅、单株材积、林木各器官生物量等各项指标呈减小趋势,二者呈幂指函数相关关系,y=axb,对树高影响不显著,但树木的高径比随密度增加呈增大趋势;林分密度对单株和不同器官生物量均有显著影响,随林分密度的增加而减小;林下植被生物量和多样性与林分密度呈极显著负相关。
This paper studied the relationship between stand density and stand factors such as DBH,tree height and biomass of Pinus sylvestris var.mongolica plantation in sandy land.The results showed that the effects of stand density on forest growth factors had significant correlation and regularity,and the indexes such as average DBH,average crown width,individual plant volume and biomass of various organs showed a decreasing trend,with the correlation of power exponential function,y=axb,which had no significant effect on tree height,while the height diameter ratio of trees increased with the increase of density;the stand density had significant effect on the biomass of individual plant and different organs,which decreased with the increase of stand density;the biomass and diversity of understory vegetation were negatively correlated with stand density.
作者
韩照日格图
白玉荣
王立军
李向飞
宋辉
Hanzhaorigetu;BAI Yurong;WANG Lijun;LI Xiangfei;SONG Hui(Hulunbuir Academy of Forestry and Grassland, Hulunbuir, Inner Mongolia 021008, China;Honghuaerji Bureau of Forestry, Hulunbuir, Inner Mongolia 021112, China)
出处
《林业调查规划》
2021年第4期1-6,共6页
Forest Inventory and Planning
基金
沙地樟子松人工林改造成母树林的关键技术研究项目资助.
关键词
林分密度
林木生长
生物量
林下植被
沙地樟子松
stand density
forest growth
biomass
understory vegetation
Pinus sylvestris var.mongolica in sandy land
作者简介
第一作者:韩照日格图(1983-),男(蒙古族),内蒙古兴安盟人,硕士,高级工程师,从事森林培育理论与碳汇技术研究,Email:347809990@qq.com。
