摘要
当前亚热带区域树种多样性研究存在着空间代表性不足、天然林与人工林对比研究少等问题。为了弥补以往相关研究的不足,对分布在福建山海过渡地带的天然林(针阔混交林和常绿阔叶林)和人工林(杉木林、松林和竹林)开展调查,分析各类型群落数量与结构的分布规律,探明该区域树种多样性的分布规律及其影响因子。结果表明:天然林和各人工林类型之间的树种多样性差异显著,但两种天然林之间差异不显著;针阔混交林的丰富度、生态优势度和树种多样性均最高,竹林的丰富度、生态优势度最低而杉木人工林树种多样性最低。针阔混交林的地上碳储量最高,竹林的最低。竹林的群落密度最高,松林最低。总体而言,树种多样性与物种丰富度、生态优势度和地上碳储量之间存在显著的正相关,但各植被类型的树种多样性与各影响因子的关系规律并不一致。常绿阔叶林和针阔混交林与所有样地整体表现一致;杉木林群落密度对其树种多样性的影响最大,海拔次之;松林碳储量对其树种多样性的影响最大。总体来看,福建省山海过渡地带树种多样性及其主要影响因子因不同植被类型而存在差异,树种多样性与海拔的关系存在多种梯度格局。
Previous studies on tree species diversity in subtropical regions have faced issues such as insufficient spatial representation and a lack of comparative studies between natural and artificial forests.To address these gaps,this study conducted surveys of natural forests and plantations in the transitional zone between mountains and seas in Fujian,then analyzed the distribution patterns of community quantity and structure to explore the distribution patterns of tree species diversity and its influencing factors in the region.Results indicate that significant differences in species diversity exist between natural forests and various artificial forest types,but the differences between the two natural forests are not significant.Mixed coniferous and broadleaf forests have the highest richness,ecological dominance,and species diversity while bamboo forests show the lowest richness and ecological dominance,with Cunninghamia lanceolata forests exhibiting the lowest species diversity.In terms of carbon storage and stand density,mixed coniferous and broadleaf forests have the highest aboveground carbon storage,while bamboo forests have the lowest.Bamboo forests have the highest community density with pine forests being the lowest.Overall,there is a significant positive correlation between tree species diversity and species richness,ecological dominance,and aboveground carbon storage,though the relationships vary among different vegetation types.Evergreen broadleaf forests and mixed coniferous and broadleaf forests show consistent performance across all sample sites;the community density of Cunninghamia lanceolata forests has the greatest impact on their species diversity,followed by elevation;while pine forest carbon storage has the greatest impact on its species diversity.In summary,tree species diversity in the transitional zone of Fujian Province varies among different vegetation types,with major influencing factors differing accordingly,and the relationship between species diversity and elevation exhibits multiple gradient patterns.
作者
陈进斌
郭伟
李登秋
陆灯盛
陈耀亮
CHEN Jinbin;GUO Wei;LI Dengqiu;LU Dengsheng;CHEN Yaoliang(Fujian Environmental Monitoring Center,Fuzhou 350003,China;School of Geographical Sciences,School of Carbon Neutrality Future Technology,Fujian Normal University,Fuzhou 350117,China)
出处
《亚热带资源与环境学报》
2025年第2期69-79,共11页
Journal of Subtropical Resources and Environment
基金
福建省自然科学基金面上项目(2022J01179)。
关键词
树种多样性
碳储量
分布规律
东南沿海山海过渡带
tree species diversity
carbon storage
distribution pattern
the transitional zone between mountains and seas
作者简介
通信作者:郭伟(1980-),男,山西隰县人,高级工程师,硕士,研究方向为生态质量监测,gw316@126.com。
