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本文阐述了一种分析林分生长与密度间关系的方法。断面积生长的效应通过将林分内各层的生长量分解成依赖于密度变化和不依赖于密度变化的两部份进行了考察。这就允许将与密度有关的总生长量分解为苦干可以区别的部份。这种分解后的生长量与立木度的关系十分近似于修正的威布尔密度和分布函数。用幅射松的数据来叙述的这种方法广泛适用于同龄林,而且可用于改进断面积生长模型。
This article describes a method of analyzing the relationship between stand growth and density. The effect of cross-sectional area growth was examined by disaggregating the growth of each layer within the stand into two parts that are dependent on the change in density and not on the change in density. This allows the density-related total growth to be broken down into parts that can be distinguished. The relationship between the amount of growth after decomposition and the standoff is very similar to the modified Weibull density and distribution function. The method described by the Pinus radiata data is widely applicable to the same age forest and can be used to improve the cross-sectional area growth model.