Abstract:

Background & Aims: Nature-based Solutions (NbS) offer multiple environmental, social and economic benefits. They play an important role in addressing climate change and achieving sustainable development. Enhancing urban ecosystems through strategies that “work with nature” is now widely practiced by cities globally and is crucial for achieving Target 12 of the Kunming-Montreal Global Biodiversity Framework. 

Methods: In this paper, we summarized the theoretical framework of NbS and used the habitat garden initiative in Changning District, Shanghai as a case study. We systematically analyzed the design and operational modes, and network construction methods of urban microhabitats. Furthermore, we explored the achievements and limitations of habitat gardens, and suggested future research and practical directions for urban microhabitats in high-density urban areas, guided by national urban biodiversity conservation strategies. 

Results: The habitat garden initiative in Changning District, Shanghai has explored three key innovations: (1) Strengthening the networking scale effect among scattered microhabitats in dense urban areas; (2) Establishing a model of community governance with active resident participation; and (3) Forming collaborative partnerships that benefits all stakeholders. However, challenges remain, such as inconsistent biodiversity monitoring, an overemphasis on residential green spaces, and inadequate funding plans. As the Kunming-Montreal Global Biodiversity Framework progresses, restoring urban habitats and ecological networks will become increasingly crucial. 

Suggestion & Perspectives: Guided by the NbS framework and principles, cities should establish a cross-departmental and inclusive governance platforms to provide support urban microhabitats and ecological networks. To increase the appeal of NbS and urban biodiversity conservation, three measures should be implemented: improving scientific monitoring systems, expanding design patterns across various climate zones, and developing diverse funding mechanisms.

Key words: micro green space, Nature-based Solutions, microhabitat, habitat garden