摘要
应用5种概率分布规律对退化第四纪红黏土重建马尾松(Pinus massoniana)林恢复27a后林分的直径结构进行拟合。结果表明:6种重建模式的马尾松人工林的直径分布均符合Weibull分布,除了模式C符合对数正态分布和Gamma分布外,其它模式的马尾松林分直径分布均不符合正态分布模型、对数正态分布模型、Gamma分布模型和Beta分布模型;模式A,B,C,D的马尾松人工林直径分布曲线偏度值为正值,而模式E,F的马尾松人工林直径分布曲线偏度值为负值;模式A,B,C的峭度为正值,而模式D,E,F峭度为负值。
Five diameter models of trees were used to fit the diameter distribution of Pinus massoniana rehabilitating forest restored on degraded quaternary red soil after 27 years.The results showed that all the six rehabilitating forest adapted to Weibull model,but not adapted to the other diameter models,except that the mode C forest met logarithmic normal distribution and Gamma distribution.The skew-nesses of mode A,mode B,mode C and mode D were positive,while that of mode E and mode F were negative;the kurtosis of mode A,mode B and mode C were positive,but which of mode D,mode E and mode F were negative.
出处
《水土保持研究》
CSCD
北大核心
2011年第5期128-131,共4页
Research of Soil and Water Conservation
基金
江西省水利厅科技项目"赣中南红壤侵蚀区生态修复技术及其综合效益研究"(200712)
江西省教育厅科技项目"不同生态修复措施林分‘碳汇’功能及效益研究"(GJJ09372)
关键词
第四纪红黏土
重建森林
直径分布
Weibull模型
quaternary red soil
rehabilitating forest
diameter distribution
Weibull distribution model
