海南桉树人工林直径分布模型  

The Model of Diameter Distribution for Eucalyptus Plantations in Hainan Province

作　　者：向仰州[1] 徐大平[1] 杨曾奖[1] 张宁南[1] 郭俊誉[1] 

机构地区：[1]中国林业科学研究院热带林业研究所,广州510520

出　　处：《林业资源管理》2011年第3期69-71,99,共4页Forest Resources Management

基　　金：国家"十一五"科技支撑项目(2006BAD24B02);海南金华林业有限公司"桉树人工林生态环境影响监测"项目

摘　　要：桉树是我国南方种植面积最大的人工林树种,研究其直径分布有助于实现可持续经营。采用Normal分布函数、Logistic分布函数、Weibull分布函数和Γ分布函数拟合和检验了海南省文昌、琼中、昌江以及乐东桉树人工林直径分布。结果表明:4个模型中,Normal分布函数和Weibull分布函数对文昌桉树人工林直径分布拟合效果较好,Weibull分布函数对琼中、昌江和乐东桉树人工林的模拟结果较可靠。Eucalyptus is the dominant species in term of plantation area in south China.The study on the characters of diameter distribution for eucalyptus plantations contributes to realizing its sustainable management.The diameter distribution of eucalyptus plantations in Wenchang,Qiongzhong,Changjiang and Ledong,Hainan province was simulated by Normal distribution function,Logistic distribution function,Weibull distribution function,and Gamma distribution function models.All fitting results were tested through the chi-square test.The results show that Normal distribution function and Weibull distribution function models are more suitable for the diameter distribution of Wenchang eucalyptus plantation,and Weibull is the best simulation for Qiongzhong,Changjiang and Ledong.

关 键 词：桉树人工林 直径分布模型 Weibull分布函数 

分 类 号：S758.5[农业科学—森林经理学]