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作 者 ：宋萍;洪伟;吴承祯;封磊;蓝斌

期 刊 ：武汉植物学研究 2005年 23卷 1期 页码：32-36

关键词：天然黄山松；种群格局；关联维数；海拔；

Keywords:Natural Pinus taiwanensis, Population pattern, Correlation dimension, Altitude,

摘 要 ：采用关联维数对屏南和寿宁不同群落的天然黄山松(Pinus taiwanensis)种群格局的分形特征进行分析比较。结果表明,天然黄山松种群格局关联维数值在1.077～1.563之间,不同群落间的大小次序为Q2>Q8>Q5>Q3>Q1>Q7>Q6>Q4,屏南天然黄山松近纯林与寿宁混交林种群个体的空间相关程度差异不大。随海拔升高,黄山松种群关联维数呈现升—降—升的波动变化,1300～1310m及1400m是天然黄山松个体空间关联较强、个体竞争较为激烈、空间占据程度较高的海拔范围。此外,结合前文研究,讨论了如何综合运用3种分形维数对天然黄山松种群格局尺度变化特征进行描述,并绘制分形维数谱。

Abstract:The fractal characteristics of pattern of natural Pinus taiwanensis populations in different communities in Pingnan and Shouning were analyzed and compared by applying correlation dimension. The results indicated that the value of correlation dimension of pattern of natural P. taiwanensis populations ranged from 1.077 to 1.563 and the order was Q2>Q8>Q5>Q3>Q1>Q7>Q6>Q4. On the whole, degree of individual spatial correlation of natural P. taiwanensis population in almost pure forest in Pingnan and in mixed forest in Shouning had no significant disparity. As the altitude rose, correlation dimension of pattern of natural P. taiwanensis population took on up-down-up fluctuation and 1300～1310 m and 1400 m were the altitude scope where individual spatial correlation of natural P. taiwanensis population was stronger, individual competition more severe and degree of spatial occupation higher. In addition, Discussion was made on how to integrate the 3 fractal dimension methods in on study to describe the scale variation properties of pattern of natural P. taiwanensis population more clearly and plotted the spectrum of fractal dimension.

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