黄山松林不同树种树冠分形特征研究

对植物的空间占据能力的研究可以为探讨种群分布机制提供信息 ,分形几何是解决植冠和分枝格局形式的有力工具 .对寿宁、屏南二县黄山松林的不同树种冠幅的分形维数进行计算和比较 ,结果表明 :寿宁黄山松种群冠幅分形维数 >屏南县黄山松种群冠幅分形维数 ;屏南县黄山松林中的黄山松、马尾松、木荷具有相对较大的冠幅分形维数 ,说明其种间竞争小 ;屏南县黄山松冠幅分形维数小 ,其种内竞争激烈

Study on Fractals of Crown Breath of Different Tree in Pinus taiwanensis Forests

Studying spatial distribution of plant population with different crown breath can give the information for the mechanism of population distribution. Fractal geometry of crown is considered to be a very useful tool for dealing with the distribution of crown. In this paper,the fractal dimension of different species crown in the Shouning and Pingnan Pinus taiwanensis forests were calculated and compared. The results indicated that the fractal dimension of Pinus taiwanensis population in Shouning was larger than that of population in Pingnan. The fractal dimensions of different species in Pingnan were larger,which showed that the competition of variable populations was not intense. On the contrary,the smaller fractal dimension of Pinus taiwanensis population in Pingnan showed that the competition was very intense.