湖南生态科学学报2026，Vol.13Issue(1)：89-97,9.DOI:10.3969/j.issn.2095-7300.2026.01.010
衡阳市城市公园外来入侵植物调查及入侵特征分析
Investigation and Analysis of Invasion Characteristics of Alien Invasive Plants in Urban Parks of Hengyang City
摘要
Abstract
[Objective]To understand the species composition,distribution characteristics,and eco-logical impacts of invasive alien plants in urban parks of Hengyang City,this study selected Nanhu Park,Xihu Park,Yueping Park,Pinghu Park,and Wanmei Park—which are located in different parts of the city—as the research objects.[Method]Plant community surveys were conducted using the quadrat method.Combined with the Catalogue of Invasive and Naturalized Plants in China 2023 Edition,the List of Invasive Alien Species in China,and relevant standards,the family-genus composition,invasion level,habitat adaptability,and competitive relationship with native plants of invasive plants were analyzed.[Result]A total of 19 alien plant species were recorded,belonging to 9 families and 18 genera.Among these,Asteraceae had the highest proportion(7 species,36.8%).The invasion levels included:9 Level 1 highly invasive species(Solidago canadensis L.,Alternanthera philoxeroides(Mart.)Griseb.,Conyza canadensis L.,Bidens pilosa L.,Conyza sumatrensis Retz.,Aster subulatus(Michx.)G.L.Ne-som,Ipomoea triloba L.,Celosia argentea L.,Erigeron annuus(L.)Pers.),2 Level 2 severely inva-sive species(Geranium carolinianum L.,Oenothera biennis L.),and 4 Level 4 moderately invasive spe-cies(Oxalis debilis var.corymbosa(DC.)lourteig,Stellaria pallida(Dumort)Grép,Euphorbia macu-lata L.,Sonchus oleraceus L.).Habitat adaptability analysis showed that invasive plants were mainly dis-tributed in dryish and habitats(75.2%),with only Alternanthera philoxeroides(Mart.)Griseb.found in extremely humid habitats.In addition,the important value(IV)of Solidago canadensis L.reached as high as 42.6%,indicating it is the current dominant harmful species with a high risk of spread.[Con-clusion]Asteraceae plants dominate the invasive species,and some malignant invasive species have formed significant ecological advantages,requiring strengthened monitoring and prevention.This study provides a scientific basis for the precise management and ecological restoration of invasive alien plants in urban parks of Hengyang City.关键词
城市公园/外来入侵植物/群落特征/生境适应性/衡阳Key words
urban park/alien invasive plant/community characteristic/habitat adaptability/Hengyang分类
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周安刚,朱敏杰..衡阳市城市公园外来入侵植物调查及入侵特征分析[J].湖南生态科学学报,2026,13(1):89-97,9.基金项目
湖南环境生物职业技术学院青年基金项目(QN2022-06) （QN2022-06）
