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

作　　者：谢婉丽 王奇悦 王秋雪 甘婉怡 武艳芳 黄柳菁[1] XIE Wanli;WANG Qiyue;WANG Qiuxue;GAN Wanyi;WU Yanfang;HUANG Liujing(College of Landscape Architecture and Art,Fujian Agriculture and Forestry University,Fuzhou 350002,China;Palm Eco-Town Development Co.,LTd.Zhengzhou 450000,China)

机构地区：[1]福建农林大学风景园林与艺术学院,福州350002 [2]棕榈生态城镇发展股份有限公司,郑州450000

出　　处：《热带亚热带植物学报》2025年第2期149-158,共10页Journal of Tropical and Subtropical Botany

基　　金：国家自然科学基金项目(32071578);福建省自然科学基金项目(2021J01133)资助。

摘　　要：为了解闽江福州段自生草本植物群落的功能、组成和演替趋势,采用生态位测定、方差比率(VR)、χ^(2)检验等方法,结合联结系数(AC)、Spearman秩相关检验和M.Godron稳定性测定法,研究了自生草本植物群落生态位、种间联结特征和群落稳定性。结果表明,自生草本植物群落优势种的生态位相似性和生态位重叠指数普遍较低,种间竞争不激烈。重要值和生态位宽度较大的物种多为入侵植物,易对乡土植物造成威胁。群落优势种总体上呈不显著正联结;χ^(2)检验结果、联结系数、Spearman秩相关结果正联结优势不明显,表明群落优势种的种间联结性较弱、稳定性较差,各物种趋于独立分布。M.Godron分析结果表明,群落目前处于不稳定状态。城市沿江立地条件差,且存在水淹干扰和人为干扰现象,导致自生草本植物群落不稳定,仍处于演替前期。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),χ^(2) 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 χ^(2) 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 

分 类 号：Q94[生物学—植物学]