Enhancing river floodplain management with nature‐based solutions: Overcoming barriers and harnessing enablers

WIREs Water Pub Date : 2024-03-02 DOI:10.1002/wat2.1723
Nikita Christopher, Astrid Vachette, Avril Horne, Anna Kosovac
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Abstract

Floodplains are regularly inundated areas of land that provide ecosystem benefits for the entire catchment area, along with numerous benefits for communities making them ideal for human settlement. The management of floodplains involves an ongoing dilemma; how best to balance the need to protect urban settlements from significant flood events with the benefits that inundation brings to the environmental and cultural values of the floodplain. These flood events have been traditionally addressed using technical flood protection measures. However, nature‐based solutions (NbS), provide a potential alternative approach. In this research, we analyze 29 global case studies centered on river floodplain management to investigate the barriers and enablers that affect the implementation of NbS, including floodplain restoration, mangroves, riparian forest restoration, wetland green infrastructure, among other strategies. The aim of this paper is to gain insights into improving floodplain management through the assessment of barriers and enablers evident in these case studies. The barriers and enablers were divided into six categories: social, technical, financial, political, institutional and economic and further into several sub‐divided categories. Social and technical categories were the most commonly described barriers and enablers closely followed by the institutional category. The discussion is centered around four topics: understanding community and decision‐maker risk perceptions, increased focus on stakeholders, managing multiple conflicting objectives, and consideration of multiple spatial scales. Further research on the uptake of NbS needs to focus on addressing risk communication and modeling, managing trade‐offs, and demonstration of delayed benefits.This article is categorized under: Water and Life > Conservation, Management, and Awareness Science of Water > Water and Environmental Change
利用基于自然的解决方案加强河流洪泛区管理:克服障碍,利用有利因素
洪泛区是经常被洪水淹没的土地区域,为整个集水区提供生态系统效益,同时也为社区带来众多好处,是人类居住的理想场所。洪泛区的管理一直是一个两难问题:如何在保护城市住区免受重大洪水事件影响的需要与洪泛区的环境和文化价值所带来的利益之间取得最佳平衡。这些洪水事件传统上都是通过技术性防洪措施来解决的。然而,基于自然的解决方案(NbS)提供了一种潜在的替代方法。在这项研究中,我们分析了 29 个以河流洪泛区管理为中心的全球案例研究,以调查影响 NbS 实施的障碍和推动因素,包括洪泛区恢复、红树林、河岸森林恢复、湿地绿色基础设施等策略。本文旨在通过评估这些案例研究中明显存在的障碍和有利因素,深入了解如何改善洪泛区管理。障碍和促进因素分为六类:社会、技术、金融、政治、机构和经济,并进一步分为若干细分类别。社会和技术类别是最常见的障碍和推动因素,紧随其后的是机构类别。讨论围绕四个主题展开:了解社区和决策者的风险认知、更加关注利益相关者、管理多个相互冲突的目标以及考虑多个空间尺度。有关吸收 NbS 的进一步研究需要重点解决风险交流和建模、权衡管理以及延迟效益展示等问题:水与生命> 水的保护、管理和认知科学> 水与环境变化
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