基于森林生态系统演替的木荷-马尾松林种群生态位研究

Species Based on forest Ecosystem Succession Superba PinusMassoniana Forest Study on the Niche of Schima

本研究通过以重要值作为各植物种群的数量特征,对生态位特征进行了分析。从生态位宽度、生态位相似比例和生态位重叠等数量指标入手,揭示了该林区群落更新层物种的生态位特点。研究发现,中亚热带木荷马尾松林的群落结构相对简单,即它们在资源利用上具有较宽的适应能力。尤其是木荷这一树种,其生态位宽度较大,同时与其他物种的生态位存在较大的重叠。这一现象从侧面反映了森林生态系统的演替趋势。通过选择具有较大生态位宽度的物种,可以提高林区植被的适应性和生态功能,促进群落的稳定性和结构特征的形成。

This study analyzed the ecological niche characteristics by taking the important values as the quantitative characteristics of each plant population.Based on the quantitative indicators such as ecological niche width,ecological niche similarity ratio and ecological niche overlap,the ecological niche characteristics of species in the regeneration layer of the forest community were revealed.Research has found that the community structure of the subtropical Schima superba and Pinus massoniana forests is relatively simple,indicating that they have a wide adaptability in resource utilization.In particular,the tree species Schima superba has a wide ecological niche and a large overlap with the ecological niche of other species.This phenomenon indirectly reflects the succession trend of forest ecosystems.By selecting species with larger ecological niche width,the adaptability and ecological function of forest vegetation can be improved,and the stability and structural characteristics of the community can be promoted.