Assessing the IUCN global standard as a framework for nature-based solutions in river flood management applications

Maikel Berg, Chris J. Spray, Astrid Blom, Jill H. Slinger, Laura M. Stancanelli, Yvo Snoek, Ralph M.J. Schielen*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Nature-based Solutions (NbS) are actions that harness nature to help address major societal challenges. The assessment frameworks for NbS proposed in the literature differ in scope and intended use. In 2020, the International Union for Conservation of Nature (IUCN) introduced their Global Standard for NbS as a framework that can be used by anyone working on different types of NbS. Since research on the applicability of the IUCN Standard remains limited, the aim of this paper is to analyse whether the IUCN Standard may be used as an overarching assessment framework for NbS in river flood management applications and to identify the main differences in content with other NbS-frameworks. This was achieved through a comparison with 29 assessment frameworks for NbS, that are applicable to physical interventions for riverine flood risk reduction. The comparisons showed that the IUCN Standard has the largest breadth in scope of application and may therefore be used as an overarching framework. In addition, we identified a distinction between frameworks for the assessment of project processes (process-oriented) and project results (results-oriented), where the IUCN Standard can be characterized as process-oriented. This implies that the IUCN Standard may be used to assess the processes (e.g. stakeholder engagement and adaptive management) of planned, ongoing or completed NbS projects for a wide variety of environmental contexts and societal challenges. This will help persuade policy makers to consider NbS as one of the solutions in flood management issues, next to or in combination with e.g. engineering solutions or changing land use. We also identified that, while the IUCN Standard is straightforward to use and incorporates stakeholder input, the environmental context specificity as well as guidance depth on resources for assessment can be improved.
Original languageEnglish
Article number175269
Number of pages8
JournalScience of the Total Environment
Volume950
DOIs
Publication statusPublished - 2024

Keywords

  • Assessment framework
  • Building with nature
  • Comparative assessment
  • Natural flood management
  • NbS
  • Riverine flood risk reduction

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