摘要
根据杉木在贵州省的生长分布情况,将其划分为中心区、一般区2个建模单元,分别各建模单元设置样地进行调查,选择各径阶平均木进行树干解析,用复利式计算各径阶、各龄阶材积生长率,选择合适的基本方程分别采用不同的拟合方法拟合二元立木材积生长率模型,通过对各项统计检验指标进行分析评价及适用性检验,确定最优模型.提出贵州杉木二元立木材积生长率模型的应用方法.
In according with the growth and distribution of Cunninghamia lanceolata in Guizhou province, Cunninghamia lanceolata forest was divided into central area and general area with two model units respectively. In details, sample plots of each unit were set up to investigate, average tree diameters were selected for stem analysis, compound interest method was used to calculate volume growth rates of all kinds of the diameter ＆ age class, and suitable equations with different matching ways were chosen to fit the model for binary standing volume growth rate. Through the analyses and examinations by diverse statistic indicators, the optimal model was obtained. Therefore, the paper proposed an applied method for growth rate model of binary standing timber volume of Cunninghamia lanceolata in Guizhou.
出处
《林业调查规划》
2010年第2期1-4,共4页
Forest Inventory and Planning
基金
贵州省林业厅科研项目(2006-26)
关键词
杉木
二元立木材积生长率
模型拟合
模型检验
Cunninghamia lanceolata
growth rate of binary standing timber volume
model adapting
model examination
