Vulnerability of Nyabarongo River Water Abstraction to Climate Change in Rwanda
DOI:
https://doi.org/10.47604/ijes.1775Keywords:
Climate Change, Water Resources, Vulnerability, River MorphologyAbstract
Purpose: Climate change in Rwanda is a great challenge resulting from increased temperature and causing abnormal variability in weather variables and threatening the socio-economic welfare of human beings. Water resources have been subjected to degradation and pollution due to intensive and frequent rainfall that have negatively impact on water abstractions in their proximity. This study aimed at analyzing the vulnerability of the Nyabarongo river water abstraction to climate change.
Methodology: GIS and remote sensing were used to map and analyze possible changes in geophysical status of the river. Secondary data collection on temperature and rainfall for a forty years period was used to analyze the trend in climate change in Rwanda.
Findings: The results indicated that climate change in Rwanda has resulted in extreme weather events that resulted in inundations and floods of Nyabarongo River and its wetland that exacerbated the changes in geophysical status such as river flow pathway and meandering. This has resulted in washing away of some water abstraction facilities around the river and the distancing from such facilities leading to interference with abstraction. It was also found out that dry season's markedly diminished water available for abstraction in the river and impacting negatively on the groundwater recharge.
Unique Contribution to Theory, Practice and Policy: The findings can stimulate decision makers in water resources management to initiate and roll out similar studies countrywide and serve as baseline to adopt measures and strategies for the sustainable management of the resources. The findings also call for Water users to take into consideration of climate impacts during the studies, designs and implementation of water use project for the sustainable exploitation of water resources.
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References
Adhikari, U., Nejadhashemi, A.P. & Woznicki, S.A. (2015). Climate change and eastern Africa: a review of impact on major crops. Food Energy Secur 4:110-132.
Aich, V., Stefan Liersch, S., Tobias Vetter, T et al., 2014. Comparing impacts of climate change on streamflow in four large African river basins. Hydrology and Earth System Sciences, 18, 1305-1321.
Arroita, M., Flores, L., Larra, A.N., Mart_Inez, A., Mart_Inez-Santos, M., Pereda, O., Ruiz-Romera, E., Solagaistua, L. & Elosegi, A. (2017). Water abstraction impacts stream ecosystem functioning via wetted-channel contraction. Freshwater Biology, 62, 243-257
Christy, J.R, Norris, W.B., McNider R.T. (2009). Surface temperature variations in East Africa and possible causes. J. Climate. 22:3342-3356. doi: http://dx.doi.org/10.1175/2008JCLI2726.1
Haggag, M., Kalisa, J.C. & Abdeldayem, A.W.,2016. Projections of precipitation, air temperature and potential evapotranspiration in Rwanda under changing climate conditions. African Journal of environmental Science and Technology, 10(1): 18-33.
IPCC. (2018). Summary for Policymakers. In: Global warming of 1.5°C. An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to climate change. Geneva-Switzeland: World Meteorological Organisation.
IPCC. (2019). Special Report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems. IPCC Special Report on climate change, desertification, land degradation, sustainable lGeneva-Switzeland : IPCC working groups I,II and III ; WMO and UNEP.
Kabat P., Schulze R.E., Hellmuth M.E., Veraart J.A. (editors), (2002). Coping with impacts of climate
Kemen, G. A. Beach, R.H., Lapidus, D., Marwa et al., (2020). Impacts of Climate Change on the Potential Productivity of Eleven Staple Crops in Rwanda. Sustainability, 12, 4116; doi:10.3390/su12104116
Li, Y., Chen, B.-M., Wang, Z.-G. & Peng, S.-L. (2011) Effects of temperature change on water discharge, and sediment and nutrient loading in the lower Pearl River basin based on SWAT modelling. Hydrol. Sci. J. 56(1), 68-83.
Meteo-Rwanda (2020). Climatology of Rwanda- RMA Official website: www.meteorwanda.gov.rw
MINIRENA. (2011). Water Resources Management Sub-Sector Strategic Plan 2011-2015. Kigali-Rwanda: Ministry of Natural Resources.
Ministry of Environment (2019). Upper Nyabarongo catchment management plan (2018-2024). MoE, Kigali-Rwanda.
Ministry of Environment-Rwanda (2020). Erosion Control Mapping Report in Rwanda. MoE in partnership with the International Union for Conservation of Nature (IUCN) and the National Institute of Statistics of Rwanda (NISR).
MINITERE. (2006). National Adaptation Programmes of Action to climate change- NAPA final report. Kigali-Rwanda: Republic of Rwanda- Ministry of Lands, Environment, Forestry, Water and Mines-MINITERE.
Muthoni, F.K., Odongo, V.O., Ochieng, J. et al. (2018). Long-term spatial-temporal trends and variability of rainfall over Eastern and Southern Africa. Theor Appl Climatol 137, 1869-1882.
Nhapi I, U. W. (2011). Assessment of Water Pollution Levels in the Nyabugogo Catchment, Rwanda . Kigali-Rwanda: The Open Environmental Engineering journal, 2011, Vol. 4 , 40-53.
Niles, M.T., Lubell, M., Brown, M. (2015). How limiting factors drive agricultural adaptation to climate change. Agric Ecosyst Environ 200:178-185.
NISR. (2018). Thematic report on Environment and natural resources-EICV 5 2016/2017. Kigali-Rwanda: National Institute of Statistics in Rwanda.
REMA. (2019). Rwanda Compendium of Environmental Statistics, First Edition-Final Report . Kigali-Rwanda: Rwanda Environment Management Authority.
RIWSP. (2016). Sediment Fingerprint for the Nyabarongo Upper Catchment in Rwanda-Final Technical report under USAID-Rwanda Cooperative Agreement No. AID-696-LA-11-00001USAID-Rwanda Cooperative Agreement No. AID-696-LA-11-00001 PHASEII. Florida-USA: Florida International University.
RNRA (2017). Upper Nyabarongo catchment rehabilitation plan. Rwanda Natural Resources Authority; Final report Kigali-Rwanda.
RWFA (2019). Ground Water Recharge and Storage Enhancement in Eastern Province. Rwanda IWRM programme.
RWFA (2019). Water quality Monitoring. Phase I and II. Integrated water resources management in Rwanda, Final report. Rwanda Water and Forestry Authority, Kigali-Rwanda.
SEI. (2009). The Economics of Climate Change in Rwanda; Final Report. Stockholm: The Stockholm Environment Institute.
Stelma, G.N., Jr, Wymer LJ. (2012). Research considerations for more effective groundwater monitoring. J. Water Health 10:511-521. 10.2166/wh.2012.016.variability and climate change in water management: a scoping paper. DWC-Report no. DWCSSO-
WASAC (2020). Technical assessment and feasibility for the rehabilitation of Nzove I Water Treatment Plant and its supplying groundwater. Final Report-Water and Sanitation Corporation Rwanda.
WASAC. (2019). Baseline data report, Development of National Integrated water and sanitation master plans. Water and sanitation corporstion ;Kigali -Rwanda.
Zhang, W., Yan, Y. X., Zheng, J. H., Dong, X. and Cai, H. J. 2009. Temporal and spatial variability of annual extreme water level in the Pearl River Delta region, China. Global Planet. Change, 69: 35-47.
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Copyright (c) 2023 Prosper Manikuze, Dr. Maina John Nyongesah
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