摘要
以福建闽北山地马尾松人工林2块样地资料为依据,应用正态分布,对数正态分布,Weibull分布,β分布,Γ分布拟合及闽北马尾松人工林直径分布的适用性进行分析、比较,选出最适合于拟合及预测该林分直径结构的分布,并用卡方统计量对5种分布进行检验,结果表明:β分布描述闽北马尾松人工林的直径分布效果最好。
The main purpose of the thesis is choosing the most superior distribution among Normal distribution,Logarithmic normal distribution,Weibull distribution,Beta distribution and Gamma distribution when they are used for forecasting and fitting Pinus massoniana diameter structure of artificial forest on basis of analyzing and comparing the data from the 2 plots of Pinus massoniana lamb. Langbianensis stands. Five diameter structures were tested by χ2 test value. The result show： the most superior distribution used for forecasting and fitting Pinus massoniana lamb diameter structure of artificial forest is Beta distribution.
出处
《青海农林科技》
2014年第4期20-22,76,共4页
Science and Technology of Qinghai Agriculture and Forestry
关键词
马尾松
直径分布
β分布
闽北山地
Pinus massoniana
Diameter distribution
Beta distribution
Northern Fujian Mountain
