毛竹的异质性空间点格局分析

毛竹是一种重要的经济用材,研究其空间分布格局有益于对其空间发生进行预测。选取了一块空间肥量分布不均的毛竹样地,使用异质性空间点格局分析方法对毛竹的空间分布进行了研究,结果发现毛竹在给定的距离尺度下呈现出显著的泊松分布,而并不是聚集分布。同时选用二元二次方程拟合观察的数据,发现对毛竹强度的拟合优度较高。研究揭示出异质性空间环境中毛竹的分布特点,潜在地表明土壤肥量的空间分布对毛竹空间分布的影响,对毛竹的集约化经营具有重要的指导意义;同时,鉴于国内生态研究中较少采用异质性空间点格局分析方法,研究对于推动这种方法在国内生态学研究中的普及还具有一定的参考价值。

Inhomogeneous spatial point pattern analysis of moso bamboo (Phyllostachys edulis)

Moso bamboo is a plant of significant economic importance. The study of moso spatial distribution is beneficial in order to calculate potential distribution patterns. The spatial distribution of a moso bamboo forest area, comprising of varying levels of fertilization, was researched using inhomogeneous spatial point pattern analysis. The results show a significant scattered distribution pattern, without clustering formation. For obtaining the instensity of moso bamboo, the quadratic equation in 2 variables is used to fit the observed data, and the goodness-of-fit of moso bamboo instensity is statisfactory. This study illustrates the spatial distribution patterns of moso bamboo, as well as the latent potential of varying levels of fertilizer on the spatial distribution of moso bamboo. This has particular significance when considering intensive management practices within bamboo plantations. Moreover, in light of the lack of domestic ecosystems research considering heterogeneous point pattern analysis, this research aims to extensively popularize the adoption of the methodology throughout domestic ecological research.