马尾松林分直径结构规律的研究

Study on Diameter Distribution of Masson Pine Stand

以马尾松同龄林为对象，在具体林分条件下，用林分总体回归方程预估所需的林分平均因子，并以林分平均因子估计值为基础，选用三参数Ｗｅｉｂｕｌ分布函数，采用查Ｗｅｉｂｕｌ分布参数表法，估计分布函数的参数值，在此基础上得到马尾松同龄林林分直径结构表。

This artical used masson pine platation as subjection for study.Under existing conditions of stand,average factores of stand were forecasted by total stand regression model.Based on them and Weibull function,coefficients of Weibull function were forecasted by looking up Weibull coefficients table,by this way, diameter distribution table of masson pine platation was developed.