<正>根据连续清查的固定样地及样木检尺有关数据 ,选择人工起源的同龄纯杉木样地 2 2 6块 ,采用三参数Weibull分布对每块样地的直径分布进行拟合 ,通过对分布参数与林分年龄的变化关系分析 ,提出大地域上林分直径结构生长的普遍规律

In order to discover the growth process of forest stand diameter distribution, 226 plots data set up by Continuous Forest Inventory (CFI) are chosen to simulate the relationship between stand structure which is described by Weibull distribution and stand age, the results show that there are close relations between them.