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根据福建省森林资源连续清查第五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,以分析坡位与林分蓄积之间的关系。结果表明:卡方检验中坡位和林分蓄积的连带关系明显;剩余分析中林分蓄积随着坡位的改变,从山谷到山顶而呈现逐渐减少的趋势,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 survey data of the fifth sampling site of continuous forest resources inventory in Fujian Province, the survey data of 750 natural broad-leaved forest plots were analyzed and analyzed by chi-square test, residual analysis and log-linear model to analyze slope Relationship between the position and stand volume. The results showed that the relationship between slope position and stand volume accumulation was significant in the chi-square test. In the residual analysis, the stand volume decreased gradually from the valley to the summit as the slope position changed. However, there is a certain difference between the estimation results of main effects and the estimates of interaction effects, which may be caused by the anthropogenic effects of natural broad-leaved forests.