四川巨桉短周期工业原料人工林直径分布规律及其收获模型的研究Research on the DBH Distribution and Yield Model of Pulpwood Plantation of Eucalyptus grandis in Sichuan Province
黄从德,胡庭兴,赖家明
HUANG CongdeHU TingxingLAI Jiaming(Forestry and Horticulture College;Sichuan Agricultural University;Sichuan;
摘要(Abstract):
运用Weibull分布、反 Weibull分布、Logistic方程三种模型拟合巨桉短周期工业原料人工林林分直径分布规律,结果表明Logistic方程拟合巨桉人工林的直径分布效果好,并在此基础上分3个立地等级建立了直径分布收获模型,经检验,精度达到要求。
The DBH distribution of Ecualyptus grandis plantations was initiated with the functions of Weibull,reverse Weibull and logistic.The results showed that Logistic function accorded well with the DBH distribution of the plantation.And then,the yield models of DBH distribution(YMDD)were established respectively for three sites.The model was tested and its accuracy could meet the requirement.
关键词(KeyWords):
巨桉;纸浆林;人工林;直径分布规律;收获模型
Eucalyptus grandis,Pulpwood,Plantation,DBH distribution,Yield model
基金项目(Foundation): 四川省科学技术厅应用基础项目。
作者(Authors):
黄从德,胡庭兴,赖家明
HUANG CongdeHU TingxingLAI Jiaming(Forestry and Horticulture College;Sichuan Agricultural University;Sichuan;
DOI: 10.16779/j.cnki.1003-5508.2003.03.004
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