Nature-based solutions for river restoration and flow management: the case of Kitwe City, Zambia

Simple item page
cg.contributor.affiliationInternational Water Management Instituteen_US
cg.contributor.affiliationLondon School of Hygiene and Tropical Medicineen_US
cg.contributor.affiliationWater Resources Management Authorityen_US
cg.contributor.affiliationUniversity of Zambiaen_US
cg.contributor.affiliationUniversity of Surrey, Guildford, United Kingdomen_US
cg.contributor.donorCGIAR Trust Funden_US
cg.contributor.donorEconomic and Social Research Council, United Kingdomen_US
cg.contributor.initiativeDiversification in East and Southern Africaen_US
cg.contributor.initiativeClimate Resilienceen_US
cg.coverage.countryZambiaen_US
cg.coverage.iso3166-alpha2ZMen_US
cg.coverage.subregionKitween_US
cg.creator.identifierYakob Umer: 0000-0002-7325-3450en_US
cg.creator.identifierGiriraj Amarnath: 0000-0002-7390-9800en_US
cg.identifier.iwmilibraryH053384en_US
cg.identifier.projectIWMI - C-0021en_US
cg.identifier.urlhttps://www.intechopen.com/online-first/1203066#en_US
cg.placeLondon, UKen_US
dc.contributor.authorUmer, Yakoben_US
dc.contributor.authorDebele, S. E.en_US
dc.contributor.authorMvula, C.en_US
dc.contributor.authorAmarnath, Girirajen_US
dc.contributor.authorChisola, M. N.en_US
dc.contributor.authorMarti-Cardona, B.en_US
dc.date.accessioned2025-01-31T06:41:23Zen_US
dc.date.available2025-01-31T06:41:23Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/172613en_US
dc.titleNature-based solutions for river restoration and flow management: the case of Kitwe City, Zambiaen_US
dcterms.abstractRiver 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.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.bibliographicCitationUmer, 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.en_US
dcterms.extent20p.en_US
dcterms.issued2025-01-30en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherIntechOpenen_US
dcterms.subjectclimate changeen_US
dcterms.subjectnature-based solutionsen_US
dcterms.subjectriver restorationen_US
dcterms.subjectstream flowen_US
dcterms.subjectfloodingen_US
dcterms.subjectdisaster risk reductionen_US
dcterms.subjectrisk managementen_US
dcterms.subjectpondsen_US
dcterms.subjectwoodlandsen_US
dcterms.subjectreforestationen_US
dcterms.subjectpoliciesen_US
dcterms.subjectregulationsen_US
dcterms.subjectecosystem resilienceen_US
dcterms.subjectenvironmental degradationen_US
dcterms.subjectextreme weather eventsen_US
dcterms.subjectbiodiversity conservationen_US
dcterms.subjectwater managementen_US
dcterms.subjectwater qualityen_US
dcterms.subjectsocioecological systemsen_US
dcterms.subjectstakeholdersen_US
dcterms.subjectlocal communitiesen_US
dcterms.subjectnon-governmental organizationsen_US
dcterms.subjectcollaborationen_US
dcterms.typeBook Chapteren_US

Files

License bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

IWMI Book / Report Chapters
CGIAR Initiative on Climate Resilience
CGIAR Initiative on Diversification in East and Southern Africa
Water Data Science for Action (WDSA)