Study on the Diameter Structure Pattern of Natural Schima superba Forests in Hunan Province
In this study,the data of 12 pieces of sample of Schima superba in the national forest inventory data in Hunan Province in 2014 was used to explore the diameter structure pattern of natural Schima superba forests.By applying normal distribution,lognormal distribution,Weibull distribution and Gamma distribution to fit the diameter structure of natural Schima superba forests,and the chi-square test was carried out on the fitting results,the results showed that the lognormal distribution had the best fitting effect on the 12 pieces of sample,with an acceptance rate of 100%,followed by the Г distribution,with an acceptance rate of 83.33%.
Schima superba natural forestDiameter structureNormal distributionLognormal distributionWeibull distributionGamma distribution