高黎贡山秃杉人工林林分密度与生长关系研究

摘要

在腾冲县中和乡、北海乡等地设置30块秃杉人工林标准地,在每木检尺调查的基础上,采用相关分析方法进行不同密度指标与林分树高、胸径生长之间的相关关系分析.结果表明,林分密度与优势木平均高相关不紧密,与林分平均胸径相关紧密,即林分密度越大,其林分平均胸径越小,林分平均胸径要求达到大径级材时,林分密度应控制在1000株/hm2以内.%30 sample plots of Taiwania flousiana Plantation were set up in Zhonghe Town and Beihai Town of Tengchong County.According to scaling each tree,this paper analyzed the relationship between the different stand density index and tree height and DBH by the correlation analysis method.The results showed that the stand density was not closely related to the average height of dominant trees but closely related to the average DBH,that the stand density increased accompanied with the decrease of the aver-age DBH, and that the stand density should been controlled in 1000 plants/hm2as the average DBH reached the large diameter.