厚穗宾草地上部生物量与株高的分形关系

应用分形几何学的方法对厚穗宾草种群地上部生物量与株高的关系进行了分析研究.结果表明:厚穗宾草种群地上部生物量与株高之间存在着明显的分形关系.不同时期,不同高度的植株在空间分布结构存在着相似性,各时期分维数分别为1.993 1(3月),1.317 3(5月),1.618 2(6月),2.119 1(7月),1.935 6(8月),1.668 6(9月).整个生长季,分维数呈抛物线型,7月份达到最大值,并且生长后期的较大植株同生长前期的植株相似,分维数为1.466 8.

Fractal Relations between Aboveground Biomass and Plant Height of Aneurolepidium dasystachys

A method of fractal geometry was adopted to analytically study the relations between aboveground biomass and plant height of Aneurolepidium dasystachys populations. The results revealed that there existed a obvious fractal relation between aboveground biomass and plant height of A. dasystachys populations. The spatial distribution structures of individual plants at different heights appeared similar at the different periods of growth during which their fractal dimensions were 1.993 1(in March); 1.317 3(in May), 1.618 2(in June), 2.119 1(in July), 1.935 6 (in August) and 1.668 6 (in September). During the whole period of growth, the dimensions tended to be parabola-shaped with their peaks appearing in July and the bigger plants at the late period of growth and the plants at the early stage of growth appeared similar, with their dimensions standing at 1.466 8.