摘要
为调查茫荡山自然保护区野生植物种群及分布规律,在本底调查的基础上,于2021-2022年对保护区针叶林植物种群进行补充调查,调查群落内各物种的亚层、株数、最大/平均胸径、多度、频度、密度、均匀度和显著度等.结果表明,该区针叶林植物种群是由杉木、马尾松和黄山松为主要树种形成的植物群落组成,其植物种类分别达65、58和36种.针叶林植物种群总体分布均匀程度不一,其中马尾松林群落的植物种群分布较均匀.优势种在群落中的显著度表现为随着海拔高度的增加,优势种在群落中的重要值明显增加,种群分布层次明显.综合来看,该区针叶林植物种群分布层次分明、变化明显,杉木林、马尾松林植物群落种类丰富,黄山松林植物种类相对单一,天然植被生态系统保存较好.本研究为茫荡山自然保护区野生植物资源与开发利用提供参考.
Abstract
In order to investigate the wild plant population and distribution law in Mangdang Mountain Nature Reserve,a supplementary survey of coniferous forest plant population in 2021-2022 was conducted on the basis of background survey,and the substrata,plant number,maximum/average diameter at breast height,abundance,frequency,density,evenness and significance of each species in the community were investigated.The results showed that the coniferous forest plant population was mainly composed of plant communities formed by Chinese fir,masson pine and Huangshan pine,with 65,58 and 36 plant species,respectively.The distribution of plant population in coniferous forest was different,and the distribution of plant population in masson pine forest community was more uniform.The significance of dominant species in the community showed that with the increase of altitude,the importance value of dominant species in the community increased significantly,and the population distribution level was obvious.In summary,the distribution of coniferous forest plant populations in the area had distinct levels and obvious changes.The plant communities in Chinese fir forest and masson pine forest were rich in species,while the plant species in Huangshan pine forest were relatively single,and the natural vegetation ecosystem is well preserved.This study provides a reference for the exploitation and utilization of wild plant resources in Mangdang Mountain Nature Reserve.
国家科技期刊平台
NSTL
万方数据