南京师大学报（自然科学版）2025，Vol.48Issue(6)：70-78,9.DOI:10.3969/j.issn.1001-4616.2025.06.008
闽南山地细齿叶柃群落结构、生态位分化与种间互作机制
Community Structure,Niche Differentiation and Interspecific Interaction Mechanisms of Eurya nitida Communities in the Mountainous Areas of Southern Fujian
摘要
Abstract
To explore the community characteristics of the nectariferous plant Eurya nitida,the interspecific relationships of its dominant species,reveal its environmental adaptation strategies,and predict the community succession trend,a sample plot(1 hm2)was established in the mountainous area of southern Fujian.A comprehensive investigation and data analysis were carried out on the natural community of Eurya nitida.The results are as follows:(1)The Eurya nitida community consists of 78 plant species,belonging to 30 families and 52 genera.The dominant species vary significantly among different layers.In the tree layer,the importance value of Eurya nitida reaches 49.95,and that of Pinus massoniana is 47.61.In the shrub layer,the importance value of Eurya nitida is 60.99,and that of Adinandra millettii is 59.28.In the herb layer,the importance value of Dicranopteris dichotoma is as high as 83.93.(2)The niche breadths of dominant species show obvious differences among different layers.In the tree layer,Pinus massoniana(BL=22,BS=3.15)and Eurya nitida(BL=20.07,BS=3.1)have the largest niche breadths.In the shrub layer,Ilex chinensis(BL=21.59,BS=3.13)has the largest niche breadth.In the herb layer,Woodwardia japonica(BL=20.69,BS=3.07)and Sarcandra glabra(BL=20.58,BS=3.07)have relatively large niche breadths.The niche overlap index indicates that the average value in the tree layer is 0.30,and Eurya nitida has high overlap values with some tree species.For example,its overlap values with Aidia cochinchinensis and Diospyros morrisiana are higher than 0.9.The average value in the shrub layer is 0.59,and Eurya nitida has a high overlap with Adinandra millettii(0.962).The average value in the herb layer is 0.45,and the maximum overlap value occurs between Smilax china and Paederia foetida(1.092).(3)In terms of the overall connectivity of the community,the variance ratios of the tree layer and the shrub layer are 2.078 and 4.408,respectively,showing significant positive connectivity.The variance ratio of the herb layer is 0.633,showing non-significant negative connectivity.The interspecific correlations of dominant species are complex,with different proportions of significantly correlated species pairs and different positive and negative correlations in different layers.(4)Through clustering analysis,the tree layer is divided into 3 ecological groups,the shrub layer into 4 ecological groups,and the herb layer into 2 ecological groups.The research results provide important scientific basis for the protection and management of the Eurya nitida community and the rational development and utilization of Eurya plant resources.关键词
细齿叶柃/群落特征/优势种/种间关系/生态位/生态种组Key words
Eurya nitida/community characteristics/dominant species/interspecific relationships/niche/ecological species groups分类
农业科技引用本文复制引用
Wang Guobin,Gao Wei,Liu Yibin,Zhou Xianzhen,Xiao Zhijian,Shen Dexiang,Guo Shuitu..闽南山地细齿叶柃群落结构、生态位分化与种间互作机制[J].南京师大学报（自然科学版）,2025,48(6):70-78,9.基金项目
福建省教育厅中青年教师教育科研项目重点项目(JZ230077)、福建林业职业技术学院科研创新团队研究项目(2021LK01). （JZ230077）
