辽东山区天然次生林林分直径分布模型研究

林业资源管理 ›› 2012, Vol. 0 ›› Issue (5): 94-97.

辽东山区天然次生林林分直径分布模型研究

丁国泉, 许继中

辽宁省森林经营研究所,辽宁丹东 118002;鄂尔多斯市东胜区园林事业局,内蒙古鄂尔多斯 017000

收稿日期:2012-04-16 修回日期:2012-06-18 出版日期:2012-10-28 发布日期:2020-11-27
作者简介:丁国泉(1977-),男,河南郏县人,工程师,主要从事森林培育、森林经营和森林经理方面的研究工作。Email:Guoquanding@126.com
基金资助:
国家林业公益性行业科研专项“三北地区生态林可持续经营关键技术研究与示范”( 200804027);辽宁省科技厅农业公关计划项目“辽东山区森林经营关键技术研究与示范”(2011207001)

Study on the Stand Diameter Distribution Model of the Natural Secondary Forests in the Mountainous Areas of Eastern Liaoning

DING Guoquan, XU Jizhong

Liaoning Institute of Forest Management,Dandong 118002 Liaoning Province,China;Dongsheng District Landscape Architecture Bureau of Erdos,Erdos 017000,Inner Mongolia,China

Received:2012-04-16 Revised:2012-06-18 Online:2012-10-28 Published:2020-11-27

摘要/Abstract

摘要： 以峰度、偏度和变动系数为指标研究了辽东山区天然次生林直径株数分布特征。运用Johnson's SB分布、Gamma分布、3参数和2参数Weibull分布等4种概率密度函数研究了辽东山区天然次生林直径株数分布规律,同时利用Kolmogorov-Smirnov(KS)检验法来检验4种概率分布的拟合效果,结果表明:林分直径的株数分布以Johnson's SB分布拟合效果最好,Weibull分布(包括2参数和3参数)仅仅适合中度区和弱度区,但不是最好。所有的分布模型均通过了优势度检验,说明均适用于直径株数分布的拟合。

关键词: 抚育间伐, Johnson's SB分布, Weibul分布, Gamma分布, 辽东山区, 天然次生林

Abstract: Some characters of the diameters of number of stem distributions of secondary forest in mountains of eastern Liaoning were studied by using indices of skewness,kurtosis and coefficient of variation.The stand diameter of number of stem and basal area distributions in the secondary forest were simulated by four probability density functions:Johnson's SB,Gamma,two- and three-parameter Weibull distribution.The four distribution functions were tested through Kolmogorov-Smirnov(KS)test.The results showed that the Effects of Thinning of the stand diameter of number of stem distribution,and Johnson's SB distribution fit best;Weibull distribution(including the two- and three-parameters)is only suitable for Plot 3 and Plot 2,but not the best .All the distribution models have passed the test of goodness of fit,which are applicable to the model fitting.

Key words: thinning, Johnson's SB distribution, Weibull distribution, Gamma distribution, moutains of eastern Liaoning, secondary forest, diameter distribution

中图分类号:

S711
S753.7

丁国泉, 许继中. 辽东山区天然次生林林分直径分布模型研究[J]. 林业资源管理, 2012, 0(5): 94-97.

DING Guoquan, XU Jizhong. Study on the Stand Diameter Distribution Model of the Natural Secondary Forests in the Mountainous Areas of Eastern Liaoning[J]. FOREST RESOURCES WANAGEMENT, 2012, 0(5): 94-97.

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