摘要
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.
出处
《安徽农业大学学报》
CAS
CSCD
1998年第1期23-25,共3页
Journal of Anhui Agricultural University
关键词
马尾松
林分结构
Weibull函数
Masson pine Stand diameter distribution Weibull distribution