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Contemporary cities are facing several challenges such as urban heat islands, floodings and many other climate change related risks. These risks are increased in particular contexts of the city that are poorly resilient due to the prevalence of impervious surfaces. To cope with these issues, Nature-based Solution (NbS) have emerged as a strategy to address urban risks, leveraging nature to deploy and manage urban ecosystems through providing urban ecosystem services. This study proposes a GIS-based methodology to assess the potential spatial locations of NbS in public open spaces of dense urban settings, through using open source and widely available European-wide data sources. The method consists of four main steps: (1) vegetation cover and public open spaces analyses; (2) selection of potentially transformable vegetation cover and public open spaces patches; (3) NbS database realisation to catalogue suitable solutions to mitigate the two specific risks of urban heat islands and floodings, suitable for inclusion in such a dense context; (4) transformation scenarios assessment. Accordingly, two scenarios (inclusion of NbS in existing greenery and installation of NbS in impervious surfaces) are drawn. The case study of the historic centre of Catania (Italy) is here presented.

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Do Dense Cities Have Enough Space to Accommodate Nature-Based Solutions? A European Wide Data-Based Approach for Their Spatial Localisation

  • 会议论文

  • 发表日期：

    2026年

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  • Giulia Jelo,
  • Riccardo Privitera,
  • Daniele La Rosa

摘要

Contemporary cities are facing several challenges such as urban heat islands, floodings and many other climate change related risks. These risks are increased in particular contexts of the city that are poorly resilient due to the prevalence of impervious surfaces. To cope with these issues, Nature-based Solution (NbS) have emerged as a strategy to address urban risks, leveraging nature to deploy and manage urban ecosystems through providing urban ecosystem services. This study proposes a GIS-based methodology to assess the potential spatial locations of NbS in public open spaces of dense urban settings, through using open source and widely available European-wide data sources. The method consists of four main steps: (1) vegetation cover and public open spaces analyses; (2) selection of potentially transformable vegetation cover and public open spaces patches; (3) NbS database realisation to catalogue suitable solutions to mitigate the two specific risks of urban heat islands and floodings, suitable for inclusion in such a dense context; (4) transformation scenarios assessment. Accordingly, two scenarios (inclusion of NbS in existing greenery and installation of NbS in impervious surfaces) are drawn. The case study of the historic centre of Catania (Italy) is here presented.