林分结构与固碳功能的耦合关系模型研究

摘要

2012年9月,在浙江省淳安县千岛湖林区选取纯林、混交林建立24个样地,测定胸径、树高等数据.运用主成分分析方法,分析了平均胸径、生物多样性指标、混交度等13个林分结构因子与固碳功能之间的关系,建立林分结构与功能耦合关系的模型,并根据模型的计算结果,对研究区的样地进行了综合分析.结果表明,阔叶林样地的固碳功能优于针阔混交林样地,针叶纯林的固碳功能最差.%Establishment of 24 sample plots of pure and mixed forest were carried out in September 2012 in Qiandaohu, Chun'an of Zhejiang province and determinations were conducted on DBH, tree height, etc. 13 factors of forest stand structure were selected including DBH, biodiversity index, mingling to analyze relationship between these factors and carbon sequestration by principal component analysis. The coupling relationship between forest structure and carbon sequestration was modeled. Comprehensive analysis by calculations of sample plots demonstrated that carbon sequestration of broad-leaved forest was better than that of mixed forest of conifer and broad-leaved, and that of confer forest was the last.