论文部分内容阅读
为提高森林调查精度,本文就同一年令阶段的白桦林的疏密度与林分形数之间的关系,作如下分析探讨。数据取自大兴安岭根河林区,总共为11块年令在55～74年的白桦林标准地,它们的林分形数为0.408～0.623。分析方法采用等级相关这样一种检验两种有关数据关系密切程的的非参数统计的方法。
In order to improve the accuracy of forest investigation, this paper discusses the relationship between the density of birch forest and the shape of forest in the same year. The data are taken from the root forest zone of the Greater Hinggan Mountains. For a total of 11 birch forests of 55 to 74 years old, their forest fractal dimensions are 0.408 to 0.623. Analytical methods use rank-related methods of testing two non-parametric statistics that are closely related to data.