西南林业大学学报2017，Vol.37Issue(1)：159-163,5.DOI:10.11929/j.issn.2095-1914.2017.01.025
禄丰村林场云南松人工幼林的林分结构分析
Stand Structure Analysis of a Pinus yunnanensis Juvenil P lantation in Lufencun Forestry Farm
摘要
Abstract
In order to analyze structures and characteristics of diameter classes, tree heights, basal areas and important values (IV), etc., the investigation was conducted in a 10-year-old Pinus yunnanensis plantation which established by uneven row spacing of the 1 m × 2 m × 5 m at Jianshan Forest zone of Lufengcun Forestry Farm. The results showed as followings:mean diameter at breast height ( DBH) of the stand was 8. 3 cm with the DBH ranges of 1. 7-14. 7 cm, among the DBH range, tree stem sequence ( TSS) of the 5. 0-11. 0 cm was 83. 3%, based on 2 cm as a diameter class ( DC) , the TSS of the 8 cm and 10 cm DC had 2/3 in total stand trees, it was presented normal distribution between the TSSs and different DCs. Mean height of the stand was 4. 5 m with mean ranges of 2. 6-5. 3 m for the different DCs, there was linear regression equation of y=1. 891ln(x)+0. 593 3 between the height and the DBH. Total basal areas and the IVs of the different DCs were 4. 3-2 057. 3 cm2 and 0. 2%-23. 0%, respectively, which also presented normal distribution with the DCs. According to the differentiation of the stand DBHs and heights, it was proposed that the first time tending thinning should be implemented.关键词
云南松/人工林/径阶/正态分布/疏伐Key words
Pinus yunnanensis/plantation/diameter class/normal distribution/thinning分类
农业科技引用本文复制引用
汪亚愈,龚建斌,郑树宏,李莲芳,欧亚,鲍雪纤,王文俊,张薇,郑书绿,杨文君,李卫冲..禄丰村林场云南松人工幼林的林分结构分析[J].西南林业大学学报,2017,37(1):159-163,5.基金项目
林业科学技术推广项目([2015]26号)资助；国家自然科学基金项目(31170585)资助。 （[2015]26号）
