Assessment of the adoption of nature-based solutions for flood risk mitigation: Socio-economic determinants in the River Nyamwamba catchment, Uganda

Nature-Based Solutions Pub Date : 2025-03-03 DOI:10.1016/j.nbsj.2025.100225

Nelson Nuwahereza , Susan Balaba Tumwebaze

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Abstract

Floods are the most common and destructive natural disaster being experienced worldwide. This necessitates effective flood risk reduction measures and Nature Based Solutions (NBS) have emerged as promising measures that not only reduce the flood risk but also offer additional environmental and societal benefits. This study aimed to establish the household socio-economic characteristics that determine adoption of NBS for flood risk reduction in the rural mountainous River Nyamwamba catchment, Southwestern Uganda. The study answered the following research questions, (a) to what extent have NBS for flood risk reduction been adopted in River Nyamwamba catchment, (b) How does the stage at which a household becomes involved in a NBS project influence its likelihood of adopting NBS for flood risk reduction? (c) What household socio-economic characteristics significantly affect adoption of NBS for flood risk reduction? The study revealed moderate adoption of NBS for floodrisk reduction, with 54% of households in the catchment having adopted at least one or a combination of river buffer zone restoration and/ or on-farm tree planting. Findings revealed that access to flood risk information, past flood experience, and the number of contributors to household livelihood (number of breadwinners) are the household socio-economic characteristics that significantly affect the adoption of NBS for flood risk reduction. The study also revealed that the stage at which a household becomes involved in a NBS project has no significant impact on the likelihood of adoption of NBS for flood risk reduction. The study recommends improving access to flood risk information, leveraging past flood experiences, and addressing intra-household land use conflicts to enhance adoption of NBS for flood risk reduction. Moreover, the study highlights the need for participatory approaches and sustained community engagement to ensure that NBS interventions are locally acceptable

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评估采用基于自然的减轻洪水风险解决办法：乌干达尼亚姆万巴河流域的社会经济决定因素

洪水是世界范围内最常见、最具破坏性的自然灾害。这就需要有效的减少洪水风险的措施，而基于自然的解决方案（NBS）已经成为一种有希望的措施，不仅可以降低洪水风险，还可以提供额外的环境和社会效益。本研究旨在确定决定在乌干达西南部山区Nyamwamba河流域采用NBS降低洪水风险的家庭社会经济特征。该研究回答了以下研究问题，(a) Nyamwamba河流域在多大程度上采用了减少洪水风险的国家统计局，(b)家庭参与国家统计局项目的阶段如何影响其采用国家统计局减少洪水风险的可能性？(c)哪些家庭社会经济特征显著影响采用国家统计局减少洪水风险？该研究显示，在减少洪水风险方面，国家统计局的采用是适度的，54%的集水区家庭至少采用了一种或多种河流缓冲区恢复和/或农场植树的组合。研究结果表明，获取洪水风险信息、过去的洪水经历和家庭生计贡献者的数量（养家糊口的人数）是家庭社会经济特征，对采用国家统计局来降低洪水风险有显著影响。研究还表明，家庭参与国家统计局项目的阶段对采用国家统计局降低洪水风险的可能性没有显著影响。该研究建议改善对洪水风险信息的获取，利用过去的洪水经验，并解决家庭内部土地使用冲突，以加强采用国家统计局来降低洪水风险。此外，该研究强调了参与性方法和持续的社区参与的必要性，以确保国家统计局的干预措施在当地被接受

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Nature-Based Solutions

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