红石林业有限公司阔叶红松林林分生长模型的构建

Establishment of Growth Model of Broad-leaved and Pinus koraiensis Mixed Forest in Hongshi Forestry Limited Company

本文利用吉林森工红石林业有限公司森林资源调查2016年小班数据库,构建了阔叶红松林林分生长模型,并进行拟合精度检验,最终筛选出最佳的林分生长模型。结果表明:阔叶红松林的林分公顷蓄积量随林龄增加呈“S”型增长,选择的6个林分生长模型检验结果均达到显著水平,除了Korf模型参数b不在置信区间内,其余5个林分生长模型参数拟合结果均达到显著水平。Logistic模型的各项拟合精度检验结果较好,选择Logistic模型为红石林业有限公司阔叶红松林的最佳林分生长模型。

In this paper,the growth models of broad-leaved and Pinus koraiensis mixed forest were constructed by using the subcompartment database of the forest resource survey of Hongshi Forestry Limited Company of China Jilin Forest Industry Group in 2016.The fitting accuracy test was carried out and the best growth model was selected.The results showed that the volume per hectare showed the S curve with the increase of the age.The test results of six growth models were all significant.Except that the parameter b of Korf model was not in the confidence interval,the fitting results of parameters of other five growth models were all significant.The fitting accuracy test results of Logistic model were good.The Logistic model was selected as the best growth model of broad-leaved and Pinus koraiensis mixed forest of Hongshi Forestry Limited Company.