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기후변화대응 물관리를 위한 자연기반해법의 개념적 체계와 정책적 과제

Nature-based Solutions for Climate-Adaptive Water Management: Conceptual Approaches and Challenges

  • 박유진 (중앙대학교 도시계획부동산학과) ;
  • 오재일 (중앙대학교 사회기반시스템공학부)
  • Park, Yujin (Department of Urban Planning and Real Estate, Chung-Ang University) ;
  • Oh, Jeill (School of Civil, Environmental Engineering, Urban Design and Studies, Chung-Ang University)
  • 투고 : 2022.04.01
  • 심사 : 2022.06.24
  • 발행 : 2022.07.30

초록

Nature-based Solutions (NbS) are defined as practical and technical approaches to restoring functioning ecosystems and biodiversity as a means to address socio-environmental challenges and provide human-nature co-benefits. This study reviews NbS-related literature to identify its key characteristics, techniques, and challenges for its application in climate-adaptive water management. The review finds that NbS has been commonly used as an umbrella term incorporating a wide range of existing ecosystem-based approaches such as low-impact development (LID), best management practices (BMP), forest landscape restoration (FLR), and blue-green infrastructure (BGI), rather than being a uniquely-situated practice. Its technical form and operation can vary significantly depending on the spatial scale (small versus large), objective (mitigation, adaptation, naturalization), and problem (water supply, quality, flooding). Commonly cited techniques include green spaces, permeable surfaces, wetlands, infiltration ponds, and riparian buffers in urban sites, while afforestation, floodplain restoration, and reed beds appear common in non- and less-urban settings. There is a greater lack of operational clarity for large-scale NbS than for small-scale NbS in urban areas. NbS can be a powerful tool that enables an integrated and coordinated action embracing not only water management, but also microclimate moderation, ecosystem conservation, and emissions reduction. This study points out the importance of developing decision-making guidelines that can inform practitioners of the selection, operation, and evaluation of NbS for specific sites. The absence of this framework is one of the obstacles to mainstreaming NbS for water management. More case studies are needed for empirical assessment of NbS.

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과제정보

본 결과물은 환경부의 재원으로 한국환경산업기술원의 상하수도 혁신 기술개발사업의 지원을 받아 연구되었습니다(2020002700015).