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Impact of Urban Greenspace Pattern Dynamics on Plant Diversity: A Case Study in Yangzhou, China

Author

Listed:
  • Hui Li

    (Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China)

  • Haidong Li

    (Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Soil and Water Conservation and Ecological Restoration of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China)

  • Nan Wang

    (Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China)

  • Guohui Yao

    (Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China)

  • Zhonglin Li

    (Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China)

  • Shouguang Yan

    (Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China)

Abstract

Accelerating urbanization leads to the scarcity and fragmentation of greenspaces. Keeping biodiversity alive, i.e., enhancing greenspaces’ impacts on plant diversity in and around urban areas, is essential. This study evaluated greenspace patterns (GSPs) using landscape metrics, and calculated plant α - and β -diversity using field surveys. Bivariate correlation analysis was used to analyze the correlations among plant α - and β -diversity and landscape metrics from 2009 to 2022. Significant models were selected using stepwise regression analysis and verified by comparing fitted and field values. The results indicate that α -diversity was primarily influenced by the number of patches, wetland landscape shape index and patch richness density, imperviousness of surfaces, and forest and grassland at the 100–1000 m scale. The correlation between GSPs and α -diversity weakened with an increase in scale. Current patch richness density, Shannon’s diversity index, Shannon’s evenness index, and percentage of impervious surface and wetland significantly influenced β -diversity at the 100–300 m scale. By contrast, β -diversity was influenced by greenspace patterns at the 300–1000 m scale. There was an observed positive correlation between GSPGSPs and β -diversity that strengthened as the scale increased. These findings highlight the scale-dependent legacy effects of GSPs on plant diversity, primarily driven by the landscape pattern characteristics of urban greenspaces and the diversity of plant groups. Therefore, prioritizing the protection of large green patches and establishing designated protected areas or points for on-site conservation are crucial strategies for urban plant diversity conservation.

Suggested Citation

  • Hui Li & Haidong Li & Nan Wang & Guohui Yao & Zhonglin Li & Shouguang Yan, 2025. "Impact of Urban Greenspace Pattern Dynamics on Plant Diversity: A Case Study in Yangzhou, China," Sustainability, MDPI, vol. 17(12), pages 1-20, June.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:12:p:5416-:d:1677185
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    References listed on IDEAS

    as
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    2. Jonathan M. Chase & Shane A. Blowes & Tiffany M. Knight & Katharina Gerstner & Felix May, 2020. "Ecosystem decay exacerbates biodiversity loss with habitat loss," Nature, Nature, vol. 584(7820), pages 238-243, August.
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