摘要
根据青海海东地区华北落叶松林区30个标准地调查所得数据,分析各主要调查因子间相关关系,研究落叶松直径分布结构并建立落叶松直径结构模型、树干材积生长模型及林分蓄积生长模型。结果表明:青海海东地区华北落叶松直径分布运用β分布函数的拟合效果最好;青海互助北山林场华北落叶松整体处于中龄林且直径分布较为稳定集中;树干材积生长模型运用理查德模型(Richards)方程拟合效果最好,方程为:V=7485.5×(1-e^(-0.001T))^(2.99);皮尔森相关系数分析得出:林分平均直径、林分平均高度、林分平均年龄3个因子与林分蓄积生长相关性最为显著,拟合得蓄积量生长模型为:V=18.752×LnD+5.647×T+15.836×H-28.349。研究结果可为青海高寒地区华北落叶松科学化管理提供参考。
The research object of this study on the Larix principis-rupprechtii Mayr plantation in the Qinghai Haidong,through the above standard survey collected data,analysis the correlation between the main factors.This paper study on the stand structure distribution regularities of the diameter and volume growth model and amount of growth model,this study provides the basis for the scientific management of Larix principis-rupprechtii in the alpine region of Qinghai.Results show that volume growth model with Richard model had better fitting effect equation,the equation is：V=7485.5×（1-e^-0.001T）^2.99;the analysis of Pearson correlation analysis indicates that the three variables of diameter,age,and height are most relevant to the accumulation growth.The model of the proposed growth model is：V=18.752×LnD＋5.647×T＋15.836×H-28.349.
作者
李慧婷
LI Huiting(Beishan forest farm in xining city ,Xining 810003, Qinghai, China)
出处
《福建林业科技》
2018年第2期91-97,共7页
Journal of Fujian Forestry Science and Technology
基金
青海海东地区森林功能价值评估(青林资[2016]621)
关键词
华北落叶松
模型
林分结构
蓄积生长量
Larix principis-rupprechtii Mayr
model
forest structure
volume growth
