热带亚热带植物学报2025，Vol.33Issue(5)：483-494,12.DOI:10.11926/jtsb.4924
南岭国家级自然保护区南坡乔木层物种多样性的垂直分布特征
Vertical Distribution Characteristics of Species Diversity in Canopy Layer in Southern Slope of Nanling National Nature Reserve
摘要
Abstract
To investigate the changing trend in plant diversity along the altitude gradient and understand the species replacement rules among communities,the vegetation communities on the southern slope of Nanling National Nature Reserve were selected as the research object.From July to August 2018,plots were established at 100 m intervals along the altitude for individual tree surveys.The vertical distribution characteristics of the species composition,species diversity and species renewal rate of the tree layer vegetation within the altitude range of 300-1 800 m were analyzed.The results showed that with the increase of altitude,the species diversity of the tree layer presented a double-peak curve change,and the dissimilarity among communities also increased,gradually increasing with the expansion of the altitude difference.In the study area,the species renewal rate showed no obvious change along the vertical gradient.The production strategies of communities at different altitudes were different.In the low-altitude area,it was mainly characterized by medium species number+few individuals+high individual biomass;in the medium-altitude area,it was mainly characterized by many species+medium individuals+medium biomass;and in the high-altitude area,it was mainly characterized by few species+many individuals+low individual biomass.Increasing species diversity can provide more ecological niches and higher resistance stability for the ecosystem,which is beneficial to the protection of rare and endangered plants and key protected plants that are sensitive to environmental changes.关键词
南亚热带/生物多样性/海拔梯度/群落结构/群落稳定性Key words
South subtropical/Biodiversity/Elevation gradient/Community structure/Community stability引用本文复制引用
李志鹏,李旭,骆金初,李跃林,陈红锋,唐旭利..南岭国家级自然保护区南坡乔木层物种多样性的垂直分布特征[J].热带亚热带植物学报,2025,33(5):483-494,12.基金项目
广东省基础与应用基础研究旗舰项目(2023B0303050001)资助 This work was supported by the Flagship Project for Basic and Applied Basic Research in Guangdong(Grant No.2023B0303050001). （2023B0303050001）
