International Journal of Environmental Planning and Management
Articles Information
International Journal of Environmental Planning and Management, Vol.6, No.4, Dec. 2020, Pub. Date: Nov. 27, 2020
Contribution of Green Infrastructures on Flood Risk Reduction in Kigali City of Rwanda
Pages: 115-124 Views: 183 Downloads: 74
Authors
[01] Uwera Martine, Department of Environmental Economics and Natural Resources Management/Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda.
[02] Nsanzumukiza Martin Vincent, Department of Environmental Economics and Natural Resources Management/Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda.
[03] Maniragaba Abias, Department of Environmental Economics and Natural Resources Management/Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda.
[04] Mukasekuru Francoise, Department of Environmental Economics and Natural Resources Management/Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda.
[05] Mucyo Jean Claude, Department of Environmental Economics and Natural Resources Management/Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda.
[06] Ntabugi Marie Claudine, Department of Environmental Economics and Natural Resources Management/Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda.
[07] Niwenshuti Emmanuel, Department of Environmental Economics and Natural Resources Management/Faculty of Environmental Studies, University of Lay Adventists of Kigali, Kigali, Rwanda.
Abstract
Nowadays, the world is facing many environmental concerns due to the rapid urbanization, concentration of economic activity, competition for space in dense urban agglomerations, unplanned development, environmental degradation and climate change. Thus, leading to an increase in the probability of floods, water, and air pollution, urban sprawl, and lack of waste management occurrence and their risks in urban settings. This study aimed to analyse the contribution of green infrastructures in reducing flood risk in Kigali City, Rwanda. The Geographic Information System (GIS) and Microsoft Excel were the main tools employed by the study. The study utilized secondary data on green infrastructures which revealed that the high possession rate is localized in Gasabo district. Regarding recent flood losses, it was realized that from January 2017 to April 2020, an advanced number of flood losses were registered in 2018. The authors based on these recent events, literature review, and expert opinion to select eight factors that likely contribute to flood occurrence in Kigali City. The flood occurrence was highly attributed to land use and land cover (26.7%), rainfall (21.16%), elevation (16.41%), slope (14.35%), and soil texture (11.37%). The spatial distribution of flood hazards highlighted that residents of Gasabo district are a large extent exposed to flood at 55.4% compared to residents of Nyarugenge and Kicukiro districts, exposed to flood at 25.4%and 19.2%, respectively. The ANOVA test of the relationship between variables generated an average possession value of 0.299. It was concluded that the initiated green infrastructures (mainly wetland) did not contribute to flooding risk reduction in Kigali city. Thus, green infrastructure location suitability is highly recommended.
Keywords
Flood, GIS, Green Infrastructures, Wetland, Risk Reduction
References
[01] Commission, E., The multifunctionality of green infrastructure, 2012. p. 1-36.
[02] EC, Science for Environment Policy, In-depth Report, The Multifunctionality of Green Infrastructure, 2012, Directorate -General Environment-European Commission: UK.
[03] Ahern, J., From fail-safe to safe-to-fail: Sustainability and resilience in the new urban world. Elsevier: Landscape and Urban Planning, 2011: p. 341-343.
[04] MoE, National Environement and Climate Change Policy, 2019, Ministry of Environment: Kigali-Rwanda.
[05] MININFRA, Urbanisation & rural settlement_sector strategic plan for national strategy for transformation, 2018, Ministry of Infrastructure: Kigali-Rwanda.
[06] REMA, The Kigali State of the Environment and Outlook Report, 2013, Rwanda Environment Management Authority: Kigali-Rwanda.
[07] Fennessy, S. M., Philip and J. Sheila, Wetland restoration for climate change resilience. Ramsar Briefing Note No.10., 2018, RAMSAR Convention Gland, Switzerland.
[08] River, N., Identification of flood prone areas in Kigali City, 2015, UNIVERSITY OF RWANDA.
[09] (Mens et al., 2011, MoE, 2019, Marlow et al., 2013)
[10] NISR, Rwanda Fourth Population and Housing Census. Thematic Report: Population size, structure and distribution, 2012, NATIONALINSTITUTION OF STATISTIC RWANDA: Kigali-Rwanda.
[11] MoE, Assessment of Current Storm Water Management and Flood in the City of Kigali Areas, 2018, Ministry of Environment: Kigali-Rwanda.
[12] Kigali, C. o., KIGALI CITY DEVELOPMENT STRATEGY (2018 - 2024), 2018. p. 1-165.
[13] Mucyo, J. C., Nsanzumukiza M. V, et al., Mapping Landslide Susceptibility and Analyzing Its Impact on Community Livelihoods in Gakenke District, Northern Rwanda. Journal of Geoscience and Environment Protection, 2020. 8(5): p. 41-55.
[14] Mind'je, R., et al., Flood susceptibility modeling and hazard perception in Rwanda. International Journal of Disaster Risk Reduction, 2019. 38: p. 101211.
[15] Munyaneza, O., Y. K. Nzeyimana, and U. G. Wali, Hydraulic Structures Design for Flood Control in the Nyabugogo Wetland, Rwanda. Kigali, Rwanda, 2013.
[16] Douglas, I., et al., Unjust waters: climate change, flooding and the urban poor in Africa. Environment and urbanization, 2008. 20(1): p. 187-205.
[17] Ellis, J. B., Sustainable surface water managementand green infrastructure in UK urbancatchment planning. Journal of Environmental Planning and Management, 2012: p. Vol.56, 24-41.
[18] Adelekan, I. O., Vulnerability assessment of an urban flood in Nigeria: Abeokuta flood 2007. Natural Hazards, 2011. 56(1): p. 215-231.
[19] Popescu, M. E. and K. Sasahara, Engineering measures for landslide disaster mitigation, in Landslides–Disaster Risk Reduction. 2009, Springer. p. 609-631.
[20] Nikuze, A., et al., Livelihood impacts of displacement and resettlement on informal households-A case study from Kigali, Rwanda. Habitat international, 2019. 86: p. 38-47.
[21] Bozzano, F., et al., Displacement patterns of a landslide affected by human activities: insights from ground-based InSAR monitoring. Natural hazards, 2011. 59(3): p. 1377-1396.
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