北京林业大学学报2025，Vol.47Issue(3)：116-127,12.DOI:10.12171/j.1000-1522.20240388
北京市朝阳区公园绿地中外来入侵植物与本地植物群落特征对比
Comparison of alien invasive plant and native plant community characteristics in park green space of Chaoyang District,Beijing
摘要
Abstract
[Objective]The invasion of alien plants poses threats to the biodiversity and ecosystem stability in urban park green space.This study aimed to explore current status of alien plant invasion in different habitats within park green space and their interspecific relationship with native dominant and common species,providing a scientific basis for effective control and ecological safety management strategies.[Method]This study was conducted in ten parks with widespread distribution of alien plants in Chaoyang District,Beijing.Using α-diversity,niche breadth,niche overlap,and interspecific association indices,we analyzed the diversity and niche breadth of alien invasive plants in different habitats,as well as the niche overlap and interspecific association between alien invasive plants and native dominant and common species.[Result](1)A total of 31 species of alien invasive plants belonging to 13 families and 24 genera were recorded in the grassland,woodland,and wetland habitats of park green space in Chaoyang District,Beijing,with the largest proportion belonging to the Asteraceae family.There were no significant differences in species diversity of alien invasive plants and native plants across different habitats.However,the species richness,species diversity measured by Shannon-Wiener index,and Simpson's dominance index of alien invasive plants were significantly lower than those of native plants in three habitats.(2)Taraxacum officinale had the largest niche breadth among the alien invasive plants in all three habitats,but its niche overlap with native dominant and common species was low.(3)The niche overlap and interspecific association between alien invasive plants and native dominant and common species were low in all three habitats,indicating weak interspecific competitive ability.[Conclusion]Currently,the invasion of alien invasive plants in the park green space of Chaoyang District,Beijing,is relatively low,and the plant communities are in an unstable early succession stage with loose interspecific relationship and no stable structure formed.Therefore,it is necessary to strengthen the monitoring and management of alien invasive plants,optimize the herbaceous plant community structure,and improve its stability and resistance to invasion.关键词
生境/外来入侵植物/本地植物/生态位/种间联结Key words
habitat/alien invasive plants/native plants/niche/interspecific association分类
生物学引用本文复制引用
张倩倩,曲晨晖,梁婉婷,付琪瑶,侯继华..北京市朝阳区公园绿地中外来入侵植物与本地植物群落特征对比[J].北京林业大学学报,2025,47(3):116-127,12.基金项目
朝阳区生物多样性规划编制及调查和评估. （）
