Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia
River systems worldwide are under significant anthropogenic pressures and climate-related challenges, leading to ecosystem degradation and increased flood risk. This chapter demonstrates how Nature Based Solutions (NbS) can contribute to river restoration while reducing flood risk, supporting wider...
| Autores principales: | , , , , , |
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
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IntechOpen
2025
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| Acceso en línea: | https://hdl.handle.net/10568/172613 |
| _version_ | 1855520587947966464 |
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| author | Umer, Yakob Debele, S. E. Mvula, C. Amarnath, Giriraj Chisola, M. N. Marti-Cardona, B. |
| author_browse | Amarnath, Giriraj Chisola, M. N. Debele, S. E. Marti-Cardona, B. Mvula, C. Umer, Yakob |
| author_facet | Umer, Yakob Debele, S. E. Mvula, C. Amarnath, Giriraj Chisola, M. N. Marti-Cardona, B. |
| author_sort | Umer, Yakob |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | River systems worldwide are under significant anthropogenic pressures and climate-related challenges, leading to ecosystem degradation and increased flood risk. This chapter demonstrates how Nature Based Solutions (NbS) can contribute to river restoration while reducing flood risk, supporting wider sustainable goals. To this end, this chapter evaluates the effectiveness of NbS interventions in river restoration and flood risk management in the Kitwe City, Zambia. The methodology involves using a hydraulic model to simulate river flow under different NbS scenarios (retention ponds and woodland reforestation), and to compare the simulated flood depth and flow velocity in pre- and post-intervention conditions. The findings indicate that the presence of NbS significantly reduces flood risks, with retention ponds and woodlands leading to flood depth reductions ranging from 0.09 m to 0.18 m and 0.06 m to 0.11 m, respectively. Regarding flow velocities, retention ponds reduced them by an average of 0.11m/s, and woodlands, by 0.07 m/s. These results indicate that both NbS types reduce flood depth and velocity, with ponds being slightly more effective than woodland in the particular setting of the Kitwe District. The findings suggest that integrating NbS into river restoration can mitigate flood risks, improve ecosystem resilience, and contribute to long-term sustainability. These results inform risk management policies and emphasise the need for interdisciplinary collaboration to upscale NbS for maximum ecological and societal benefits. |
| format | Book Chapter |
| id | CGSpace172613 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | IntechOpen |
| publisherStr | IntechOpen |
| record_format | dspace |
| spelling | CGSpace1726132025-02-25T09:26:54Z Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia Umer, Yakob Debele, S. E. Mvula, C. Amarnath, Giriraj Chisola, M. N. Marti-Cardona, B. climate change nature-based solutions river restoration stream flow flooding disaster risk reduction risk management ponds woodlands reforestation policies regulations ecosystem resilience environmental degradation extreme weather events biodiversity conservation water management water quality socioecological systems stakeholders local communities non-governmental organizations collaboration River systems worldwide are under significant anthropogenic pressures and climate-related challenges, leading to ecosystem degradation and increased flood risk. This chapter demonstrates how Nature Based Solutions (NbS) can contribute to river restoration while reducing flood risk, supporting wider sustainable goals. To this end, this chapter evaluates the effectiveness of NbS interventions in river restoration and flood risk management in the Kitwe City, Zambia. The methodology involves using a hydraulic model to simulate river flow under different NbS scenarios (retention ponds and woodland reforestation), and to compare the simulated flood depth and flow velocity in pre- and post-intervention conditions. The findings indicate that the presence of NbS significantly reduces flood risks, with retention ponds and woodlands leading to flood depth reductions ranging from 0.09 m to 0.18 m and 0.06 m to 0.11 m, respectively. Regarding flow velocities, retention ponds reduced them by an average of 0.11m/s, and woodlands, by 0.07 m/s. These results indicate that both NbS types reduce flood depth and velocity, with ponds being slightly more effective than woodland in the particular setting of the Kitwe District. The findings suggest that integrating NbS into river restoration can mitigate flood risks, improve ecosystem resilience, and contribute to long-term sustainability. These results inform risk management policies and emphasise the need for interdisciplinary collaboration to upscale NbS for maximum ecological and societal benefits. 2025-01-30 2025-01-31T06:41:23Z 2025-01-31T06:41:23Z Book Chapter https://hdl.handle.net/10568/172613 en Open Access IntechOpen Umer, Yakob; Debele, S. E.; Mvula, C.; Amarnath, Giriraj; Chisola, M. N.; Marti-Cardona, B. 2025. Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia. In Guo, C. (Ed.). River Basin Management - Challenges and Coping Strategies [Working Title]. London, UK: IntechOpen. 20p. |
| spellingShingle | climate change nature-based solutions river restoration stream flow flooding disaster risk reduction risk management ponds woodlands reforestation policies regulations ecosystem resilience environmental degradation extreme weather events biodiversity conservation water management water quality socioecological systems stakeholders local communities non-governmental organizations collaboration Umer, Yakob Debele, S. E. Mvula, C. Amarnath, Giriraj Chisola, M. N. Marti-Cardona, B. Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia |
| title | Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia |
| title_full | Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia |
| title_fullStr | Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia |
| title_full_unstemmed | Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia |
| title_short | Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia |
| title_sort | nature based solutions for river restoration and flow management the case of kitwe city zambia |
| topic | climate change nature-based solutions river restoration stream flow flooding disaster risk reduction risk management ponds woodlands reforestation policies regulations ecosystem resilience environmental degradation extreme weather events biodiversity conservation water management water quality socioecological systems stakeholders local communities non-governmental organizations collaboration |
| url | https://hdl.handle.net/10568/172613 |
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