Nature-based solutions for flood mitigation in Canadian urban centers: A review of the state of research and practice

Study region: Canadian urban regions. Study focus: This paper examines nature-based solutions (NBS) for urban flood mitigation, assessing various practices such as bioretention cells, green roofs, permeable pavements, and rainwater harvesting in the context of Canadian cities. New hydrological insig...

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Main Authors: Ali Zoghi, Émilie Bilodeau, Muhammad Naveed Khaliq, Yeowon Kim, Jean-Luc Martel, Jennifer Drake
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Journal of Hydrology: Regional Studies
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S221458182500285X
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author Ali Zoghi
Émilie Bilodeau
Muhammad Naveed Khaliq
Yeowon Kim
Jean-Luc Martel
Jennifer Drake
author_facet Ali Zoghi
Émilie Bilodeau
Muhammad Naveed Khaliq
Yeowon Kim
Jean-Luc Martel
Jennifer Drake
author_sort Ali Zoghi
collection DOAJ
description Study region: Canadian urban regions. Study focus: This paper examines nature-based solutions (NBS) for urban flood mitigation, assessing various practices such as bioretention cells, green roofs, permeable pavements, and rainwater harvesting in the context of Canadian cities. New hydrological insights for the region: The findings reveal that NBS are increasingly recognized as effective tools for managing urban stormwater and improving flood resilience. However, there is a significant gap between research and practice, with many municipalities still in the pilot project phase. Challenges include lack of region-specific design guidelines, especially for cold climates, and insufficient long-term performance and monitoring data. The paper highlights the need for more studies on assessing NBS effectiveness in northern regions, which remain under-researched. Additionally, the integration of NBS with traditional grey infrastructure is critical to maximizing flood mitigation benefits. The review also identifies the importance of developing cost-effective strategies and improved modeling tools to support the broader implementation of NBS. Future research should focus on evaluating NBS combinations, understanding their adaptive capacity in a warming climate, and addressing data gaps to bridge the divide between academic findings and practical applications of NBS.
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publishDate 2025-08-01
publisher Elsevier
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series Journal of Hydrology: Regional Studies
spelling doaj-art-6023f8167f0540d0a0dbce8745128d952025-08-20T03:31:15ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-08-016010246010.1016/j.ejrh.2025.102460Nature-based solutions for flood mitigation in Canadian urban centers: A review of the state of research and practiceAli Zoghi0Émilie Bilodeau1Muhammad Naveed Khaliq2Yeowon Kim3Jean-Luc Martel4Jennifer Drake5Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, CanadaHydrology, Climate, and Climate Change Laboratory, École de technologie supérieure, 1100 Notre-Dame Street West, Montreal, QC H3C 1K3, CanadaOcean, Coastal, and River Engineering Research Center, National Research Council Canada, 1200 Montreal Road, Ottawa, ON K1A 0R6, CanadaGraduate School of Energy and Environment, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South KoreaHydrology, Climate, and Climate Change Laboratory, École de technologie supérieure, 1100 Notre-Dame Street West, Montreal, QC H3C 1K3, CanadaDepartment of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada; Corresponding author.Study region: Canadian urban regions. Study focus: This paper examines nature-based solutions (NBS) for urban flood mitigation, assessing various practices such as bioretention cells, green roofs, permeable pavements, and rainwater harvesting in the context of Canadian cities. New hydrological insights for the region: The findings reveal that NBS are increasingly recognized as effective tools for managing urban stormwater and improving flood resilience. However, there is a significant gap between research and practice, with many municipalities still in the pilot project phase. Challenges include lack of region-specific design guidelines, especially for cold climates, and insufficient long-term performance and monitoring data. The paper highlights the need for more studies on assessing NBS effectiveness in northern regions, which remain under-researched. Additionally, the integration of NBS with traditional grey infrastructure is critical to maximizing flood mitigation benefits. The review also identifies the importance of developing cost-effective strategies and improved modeling tools to support the broader implementation of NBS. Future research should focus on evaluating NBS combinations, understanding their adaptive capacity in a warming climate, and addressing data gaps to bridge the divide between academic findings and practical applications of NBS.http://www.sciencedirect.com/science/article/pii/S221458182500285XBlue-green infrastructureFlood-resilienceNature-based solutionsUrban floodingUrban land use planning
spellingShingle Ali Zoghi
Émilie Bilodeau
Muhammad Naveed Khaliq
Yeowon Kim
Jean-Luc Martel
Jennifer Drake
Nature-based solutions for flood mitigation in Canadian urban centers: A review of the state of research and practice
Journal of Hydrology: Regional Studies
Blue-green infrastructure
Flood-resilience
Nature-based solutions
Urban flooding
Urban land use planning
title Nature-based solutions for flood mitigation in Canadian urban centers: A review of the state of research and practice
title_full Nature-based solutions for flood mitigation in Canadian urban centers: A review of the state of research and practice
title_fullStr Nature-based solutions for flood mitigation in Canadian urban centers: A review of the state of research and practice
title_full_unstemmed Nature-based solutions for flood mitigation in Canadian urban centers: A review of the state of research and practice
title_short Nature-based solutions for flood mitigation in Canadian urban centers: A review of the state of research and practice
title_sort nature based solutions for flood mitigation in canadian urban centers a review of the state of research and practice
topic Blue-green infrastructure
Flood-resilience
Nature-based solutions
Urban flooding
Urban land use planning
url http://www.sciencedirect.com/science/article/pii/S221458182500285X
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