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Assessing Nature-Based Flood Mitigation Measures at the General Area of the Confluence of Rivers Benue and Niger in Kogi State, Nigeria

Received: 13 April 2025     Accepted: 23 April 2025     Published: 26 May 2025
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Abstract

Flooding in the confluence area of Rivers Benue and Niger remains a major environ-mental and socio-economic challenge which disrupts livelihoods, damages infrastructures and increase vulnerabilities in affected communities. The existing flood management in Nigeria relies on conventional engineering solutions, with limited to no consideration of Nature-Based Solutions (NBS). While NBS have been explored in other regions, their applicability to this area remains under-researched. This study assessed the potential of Nature-Based Solutions (NBS) for mitigating flood risks in this region through the integration of Geographic Information Systems (GIS), Remote Sensing (RS), and hydrological modeling. Landsat imagery (2012-2023), Digital Elevation Models (DEM), soil, and climate datasets were utilized alongside HEC-HMS and HEC-RAS models, and Google Earth Engine (GEE) for flood extent analysis. Results showed peak flood coverage in 2018 (172.68 km²), followed by a decline to 99.12 km² in 2023. Flooding trends were attributed to increased rainfall variability, land-use changes, and inadequate drainage infrastructure. A suitability analysis for NBS implementation identified areas appropriate for wetland restoration, afforestation, and sustainable drainage systems. The study highlights the potential of integrated NBS and engineered measures in enhancing long-term flood resilience.

Published in American Journal of Remote Sensing (Volume 13, Issue 1)
DOI 10.11648/j.ajrs.20251301.12
Page(s) 13-31
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2025. Published by Science Publishing Group

Keywords

Flood Mitigation, Nature-Based Solutions, Geographic Information Systems, Remote Sensing, River Niger, River Benue, Kogi

References
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Cite This Article
  • APA Style

    Ohunene, I. H., Adewuyi, T. O., Garba, A. D., Mbow, C., Agbaje, G., et al. (2025). Assessing Nature-Based Flood Mitigation Measures at the General Area of the Confluence of Rivers Benue and Niger in Kogi State, Nigeria. American Journal of Remote Sensing, 13(1), 13-31. https://doi.org/10.11648/j.ajrs.20251301.12

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    ACS Style

    Ohunene, I. H.; Adewuyi, T. O.; Garba, A. D.; Mbow, C.; Agbaje, G., et al. Assessing Nature-Based Flood Mitigation Measures at the General Area of the Confluence of Rivers Benue and Niger in Kogi State, Nigeria. Am. J. Remote Sens. 2025, 13(1), 13-31. doi: 10.11648/j.ajrs.20251301.12

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    AMA Style

    Ohunene IH, Adewuyi TO, Garba AD, Mbow C, Agbaje G, et al. Assessing Nature-Based Flood Mitigation Measures at the General Area of the Confluence of Rivers Benue and Niger in Kogi State, Nigeria. Am J Remote Sens. 2025;13(1):13-31. doi: 10.11648/j.ajrs.20251301.12

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  • @article{10.11648/j.ajrs.20251301.12,
      author = {Idris Halima Ohunene and Taiye Oluwafemi Adewuyi and Aliyu Dadan Garba and Cheikh Mbow and Ganiyu Agbaje and Oladosu Olakunle Rufus and Olaide Monsor},
      title = {Assessing Nature-Based Flood Mitigation Measures at the General Area of the Confluence of Rivers Benue and Niger in Kogi State, Nigeria
    },
      journal = {American Journal of Remote Sensing},
      volume = {13},
      number = {1},
      pages = {13-31},
      doi = {10.11648/j.ajrs.20251301.12},
      url = {https://doi.org/10.11648/j.ajrs.20251301.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajrs.20251301.12},
      abstract = {Flooding in the confluence area of Rivers Benue and Niger remains a major environ-mental and socio-economic challenge which disrupts livelihoods, damages infrastructures and increase vulnerabilities in affected communities. The existing flood management in Nigeria relies on conventional engineering solutions, with limited to no consideration of Nature-Based Solutions (NBS). While NBS have been explored in other regions, their applicability to this area remains under-researched. This study assessed the potential of Nature-Based Solutions (NBS) for mitigating flood risks in this region through the integration of Geographic Information Systems (GIS), Remote Sensing (RS), and hydrological modeling. Landsat imagery (2012-2023), Digital Elevation Models (DEM), soil, and climate datasets were utilized alongside HEC-HMS and HEC-RAS models, and Google Earth Engine (GEE) for flood extent analysis. Results showed peak flood coverage in 2018 (172.68 km²), followed by a decline to 99.12 km² in 2023. Flooding trends were attributed to increased rainfall variability, land-use changes, and inadequate drainage infrastructure. A suitability analysis for NBS implementation identified areas appropriate for wetland restoration, afforestation, and sustainable drainage systems. The study highlights the potential of integrated NBS and engineered measures in enhancing long-term flood resilience.
    },
     year = {2025}
    }
    

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  • TY  - JOUR
    T1  - Assessing Nature-Based Flood Mitigation Measures at the General Area of the Confluence of Rivers Benue and Niger in Kogi State, Nigeria
    
    AU  - Idris Halima Ohunene
    AU  - Taiye Oluwafemi Adewuyi
    AU  - Aliyu Dadan Garba
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    AU  - Ganiyu Agbaje
    AU  - Oladosu Olakunle Rufus
    AU  - Olaide Monsor
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    T2  - American Journal of Remote Sensing
    JF  - American Journal of Remote Sensing
    JO  - American Journal of Remote Sensing
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    AB  - Flooding in the confluence area of Rivers Benue and Niger remains a major environ-mental and socio-economic challenge which disrupts livelihoods, damages infrastructures and increase vulnerabilities in affected communities. The existing flood management in Nigeria relies on conventional engineering solutions, with limited to no consideration of Nature-Based Solutions (NBS). While NBS have been explored in other regions, their applicability to this area remains under-researched. This study assessed the potential of Nature-Based Solutions (NBS) for mitigating flood risks in this region through the integration of Geographic Information Systems (GIS), Remote Sensing (RS), and hydrological modeling. Landsat imagery (2012-2023), Digital Elevation Models (DEM), soil, and climate datasets were utilized alongside HEC-HMS and HEC-RAS models, and Google Earth Engine (GEE) for flood extent analysis. Results showed peak flood coverage in 2018 (172.68 km²), followed by a decline to 99.12 km² in 2023. Flooding trends were attributed to increased rainfall variability, land-use changes, and inadequate drainage infrastructure. A suitability analysis for NBS implementation identified areas appropriate for wetland restoration, afforestation, and sustainable drainage systems. The study highlights the potential of integrated NBS and engineered measures in enhancing long-term flood resilience.
    
    VL  - 13
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