摘要
分析了枣庄市市中区3种主要树种黑杨、刺槐和侧柏的直径结构特征,运用5种分布函数正态分布、Weibull分布、对数正态分布、Gamma分布以及logistic分布对这3种树的林分的直径分布进行了拟合,同时用卡方统计量对5种分布进行了检验,拟合和检验得出了一致的结果。
Three mainly tree species,which include Populus nigra,Black Locust（Robinia Pseudoacacia L.） and Platycladus Orientalis,were investigated in Forestry Bureau of Zaozhuang City,Shandong Province.In this paper,diameter structural characteristics of three tree types are analyzed and both of diameter distribution are simulated by five kinds of distribution,that is normal distribution,Weibull distribution,Gamma distribution,lognormal distribution and logistic distribution,and by analyzing and comparing a suitable distribution for simulating the height structure of the distribution of the three tree species can be selected,besides the five kinds of distribution functions are tested through chi-square statistic.Finally they are received the same results.
出处
《山东林业科技》
2010年第3期43-46,共4页
Journal of Shandong Forestry Science and Technology
