作　　者： ; ; ; ; ;

机构地区： 福建农林大学林学院森林生态研究所

出　　处： 《福建林学院学报》 2007年第2期123-125,共3页

摘　　要： 根据福建省森林资源连续清查第5次复查样地调查资料,对750个天然阔叶林样地调查资料进行整理分析并进行卡方检验、剩余分析及log-线性模型的拟合,以分析海拔与林分蓄积之间的关系。结果表明:卡方检验中海拔和林分蓄积的连带关系明显;剩余分析中林分蓄积随着海拔的升高而呈现减少的趋势,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有一定的差异,这种差异可能是由天然阔叶林受人为影响而造成的。 According to the fifth continuously check of forest resources in Fujian Province, the data were investigated from 750 sample plots. After χ^2 examination, the residual analysis and the log-linear simulating, relationships between stand stock and altitude were analyzed. The results showed that the relation of stand stock and altitude was obvious in χ^2 examination; and the stand stock was decreasing with the rise of altitude, which was consistent with the results of the order association determination. But there were some differences between the estimations of major effect and interaction effect, which may be influenced by human factors.

关 键 词： 阔叶林 海拔 林分蓄积 列联表 线性模型

领　　域： [农业科学]