Species Composition and Biodiversity Characteristics of Urban Spontaneous Herbaceous Plant Communities:A Case Study of Yangling Urban Area in Shaanxi Province
The wild and authentic natural areas in small city settings constitute a crucial component of urban biodiversity.By unveiling the species composition and biodiversity characteristics of native plant communities,this study provides insights to guide the future applications of indigenous communities in urban environments.Conducted in the typical small city of Yangling urban area in China,the research employed a standard plot-sampling method,surveying 124 native plant community plots within the urban area.The analysis focused on the species composition,community structure,and spatial distribution characteristics.One hundred ninety-eight native plant species belonging to 50 families and 152 genera were recorded.The results revealed:(1)Each square meter of native communities in the study area,on average,harbored one dominant species,two companion species,and seven occasional species,with perennial herbaceous plants being predominant among the dominant species.(2)Severe invasive species typically existed as dominant species,while invasive species of levels 3-7 often appeared as companion species,posi-tively contributing to the community's biodiversity.(3)Significant differences in community biodiversity were observed among different habitats,with native communities in farmland,wetlands,and lawns exhibiting higher potential for restoring urban biodiversity.This study demonstrates that native plant communities in small urban settings play a unique and vital role in sus-taining urban biodiversity.These natural plant communities are poised to significantly impact urban biodiversity and sustainable development through appropriate management and application.
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