福建省阔叶林林分年龄与平均胸径、蓄积量的关系

Relationship between Mean DBH,Volume and Stand Age of Broad-leaved Woodland in Fujian Province

根据福建省森林资源连续清查第5次复查资料，对750个天然阔叶林样地调查资料进行整理，通过X^2检验、剩余分析及log-线性模型的拟合，分析了天然阔叶林林分年龄与平均胸径、蓄积量之间的关系。结果表明：X^2检验中林分平均胸径、蓄积量与林分年龄的连带关系明显；剩余分析中林分平均胸径、蓄积量随林分年龄的增长而呈现出增加的趋势，这与有序连带测定结果基本一致，但主效应估计分析结果与交互作用效应估计之间存在一定的差异，这种差异可能是由天然阔叶林受自身因素影响较多而受人为影响较少造成的。

According to the fifth continuous check of forest resources in Fujian Province, from 750 plots were analyzed in this paper, then X^2 examination, the residual the data investigated analysis and the log-linear simulating, relationships between stand age and mean DBH, volume were analyzed. The major results are as follows： the relationships between mean DBH, stand volume and stand age are obvious in X^2 examination; mean DBH and stand volume are increasing with the increasing of stand age, which is consistent with the results of the order association determination. But there are some differences between the estimations of major effect and interaction effect, which differences are formed because the broad-leaved woodland is influenced by own factors more than human factors.