马尾松天然次生林林分结构规律研究  

Research on Structure of Natural Secondary Forest of Pinus massoniana

作　　者：许善财 

机构地区：[1]福建省武夷山市科技试验林场,福建武夷山354300

出　　处：《福建林业科技》2015年第3期107-109,共3页Journal of Fujian Forestry Science and Technology

基　　金：福建省林业厅科研项目(闽林科[2012]2号)资助

摘　　要：以武夷山国家级自然保护区低山石质山区的马尾松天然次生林为研究对象,对林分结构规律进行研究,并应用概率分布函数对林分胸径、树高进行拟合。结果表明:正态分布、Weibull分布、β分布对马尾松天然次生林林分胸径分布具有较好的适应性,其拟合效果较好,能通过卡方检验;对林分树高与胸径曲线拟合方程进行优化,最佳回归模型为y=1.141x0.842(R2=0.979),拟合效果较好,树高与胸径之间存在正相关关系。In this study,the stand structure of the natural secondary forest of Pinus massoniana in low stone mountain of Wuyishan national nature reserve was researched.The application of the probability distribution function of diameter and tree height show that the normal distribution, Weibull distribution, beta distribution had well adaptability and great fitting effect on stand diameter and height distribution,which pass the chi square test.In addition,the stand curve fitting equations of tree height and diameter are opti-mized,the best fitting equation is y=1.141x0.842（R2 =0.979）,indicated that the tree height and diameter is positively related.

关 键 词：马尾松 天然次生林 林分结构 直径 树高 

分 类 号：S791.248[农业科学—林木遗传育种]