热带亚热带植物学报2025，Vol.33Issue(2)：149-158,10.DOI:10.11926/jtsb.4866
闽江福州段自生草本植物生态位和种间联结研究
Niche and Interspecific Association of Spontaneous Herbaceous Plants in Fuzhou Section of Minjiang River
摘要
Abstract
In order to understand the function,composition and succession trend of autoherbous community in Fuzhou section of the Minjiang River,the ecological niche,interspecific association and community stability of autoherbous communities were studied by using niche determination,variance ratio(VR),χ2 test,association coefficient(AC),Spearman rank correlation test and M.Godron stability methods.The results showed that niche similarity and niche overlap index of dominant species in autoherbous communities were generally low,and inter-specific competition was not intense.Most of the species with large importance value and niche width were invasive plants,which were easy to threaten native plants.The dominant species in the community showed no significant positive association on the whole.The results of χ2 test,association coefficient,and Spearman rank correlation showed that the positive association was not obvious,indicating that the interspecific association and stability of the dominant species in the community were weak,and each species tended to distribute independently.The results of M.Godron analysis showed that the community was currently in an unstable state.Due to the harsh conditions along urban river,flooding interference and human disturbance,the autoherbous community was unstable and still in the early stage of succession.关键词
闽江/自生植物/生态位/种间联结/群落稳定性Key words
Mingjiang/Autoherbous plant/Ecological niche/Interspecific association/Community stability引用本文复制引用
谢婉丽,王奇悦,王秋雪,甘婉怡,武艳芳,黄柳菁..闽江福州段自生草本植物生态位和种间联结研究[J].热带亚热带植物学报,2025,33(2):149-158,10.基金项目
国家自然科学基金项目(32071578) （32071578）
福建省自然科学基金项目(2021J01133)资助This work was supported by the National Natural Science Foundation of China(Grant No.32071578),and the Project for Natural Science in Fujian(Grant No.2021J01133). （2021J01133）
