生态学杂志2025，Vol.44Issue(3)：705-712,8.DOI:10.13292/j.1000-4890.202503.027
福建省尤溪水松-江南桤木群落主要物种生态位特征及种间联结性
Niche characteristics and interspecific associations of main species in Glyptostrobus pensilis-Alnus trabeculo-sa community in Youxi County,Fujian Province
摘要
Abstract
We explored the niche characteristics and interspecific associations of main species in Glyptostrobus pen-silis-Alnus trabeculosa community in Dongshan Village,Youxi County,Fujian Province.The abundance of plant species was investigated by adjacent lattice survey method.The results showed that the importance value(61.03％)and niche breadth(7.28)of A.trabeculosa were the largest in the tree layer,followed by G.pensilis(33.18％,4.87).In the shrub layer,the importance value(41.16％)and niche breadth(10.31)of A.trabeculosa were the highest,followed by Hydrangea paniculata(25.51％,6.24).Osmundastrum cinnamomeum and Mosla cavaleriei were dominant species in herb layer.In the tree layer,the niche overlap value of A.trabeculosa and G.pensilis was greater than 0.5,demonstrating a competitive relationship.In the shrub and herb layers,species pairs with niche overlap values greater than 0.5 accounted for 19.70％and 16.34％respectively,indicating interspecific competition.The overall association of tree layer(0.62)and shrub layer(0.68)showed a non-significant negative association.The herb layer(0.46)showed a significant positive association.The community was in an unstable succession stage.There was a significant negative correlation(-0.95)and strong competition between A.trabeculosa and G.pensilis.There was no seedling regeneration of G.pensilis in the shrub layer.The expansion of A.trabeculosa affected the growth of G.pensilis.Our results can provide a reference for the protection of G.pensilis and the maintenance of community stability.关键词
水松/江南桤木/重要值/生态位/种间联结Key words
Glyptostrobus pensilis/Alnus trabeculosa/importance value/niche/interspecific association引用本文复制引用
陶磊,黄雍容,蔡德淡,罗素珍,肖祥希,张岚棋,黄云鹏..福建省尤溪水松-江南桤木群落主要物种生态位特征及种间联结性[J].生态学杂志,2025,44(3):705-712,8.基金项目
福建省林业科研项目(闽林科便函[2023]26号)和中央财政国家重点保护野生植物项目(财资环[2023]115号)资助. （闽林科便函[2023]26号）
