Your search found 13 records
1 Blank, H. G.; Mutero, C. M.; Murray-Rust, H. (Eds.) 2002. The changing face of irrigation in Kenya: opportunities for anticipating changes in Eastern and Southern Africa. Colombo, Sri Lanka: International Water Management Institute (IWMI). xiv, 329p. [doi: https://doi.org/ 10.3910/2010.006]
Small scale systems ; Environmental effects ; Government managed irrigation systems ; Farmer managed irrigation systems ; Health ; Waterborne diseases ; River basins ; Pest control ; Social impact ; Water policy ; Water law ; Institutional development ; Water allocation ; Drip irrigation ; Pumps ; Technology ; GIS ; Databases ; Irrigation programs ; Drainage ; Water resource management ; Economic aspects ; Social aspects ; Water scarcity ; Conflict ; Case studies ; Land management ; Sedimentation ; Flood control ; Wetlands ; Water quality ; Erosion ; Grassland management ; Livestock ; Rain ; Drought ; Participatory management ; Design ; Credit ; Horticulture ; Farmers’ associations ; Farmers’ attitudes ; Gender ; Rice ; Legislation ; Land tenure ; Cooperatives ; Farmer-led irrigation ; Income / Southern Africa / Eastern Africa / Kenya / Upper Ewaso Ng’iro North Basin / Lake Victoria Basin / Tana River Basin / Mwea Irrigation Scheme
(Location: IWMI HQ Call no: IWMI 631.7 G140 BLA Record No: H030816)
(0.39 MB)
2 Mutero, C. M. 2002. Health impact assessment of increased irrigation in the Tana River Basin, Kenya. In Blank, H. G.; Mutero, C. M.; Murray-Rust, H. (Eds.), The changing face of irrigation in Kenya: Opportunities for anticipating changes in Eastern and Southern Africa. Colombo, Sri Lanka, IWMI. pp.211-229.
River basins ; Public health ; Risks ; Waterborne diseases ; Malaria ; Schistosomiasis ; Irrigated farming / Kenya / Tana River Basin
(Location: IWMI-HQ Call no: IWMI 631.7 G140 BLA Record No: H030841)
(0.8 MB)
3 Institute of Water and Sanitation Development (IWSD). 2010. 11th WaterNet/WARFSA/GWP-SA Symposium, Victoria Falls, Zimbabwe, 27-29 October 2010. IWRM for national and regional integration: where science, policy and practice meet: water resource management. Harare, Zimbabwe: Institute of Water and Sanitation Development (IWSD). 261p.
GIS ; Case studies ; Water resource management ; Flooding ; Drought ; Early warning systems ; Forecasting ; Water governance ; Water harvesting ; Domestic water ; Water supply ; Water resources development ; Watershed management ; Water law ; Rural areas / Africa / Tanzania / Mozambique / Namibia / Kenya / Malawi / South Africa / Cuvelai-Etosha Basin / Tana River Basin / Pangani River Basin / Nyando River Basin / Incomati River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H043408)
http://www.waternetonline.ihe.nl/11thSymposium/WaterResourcesManagementFullPapers2010.pdf
https://vlibrary.iwmi.org/pdf/H043408.pdf
https://vlibrary.iwmi.org/pdf/H043408.pdf
(8.70 MB) (20.13 MB)
4 Baker, Tracy; McCartney, Matthew P.; Mul, Marloes L. 2014. Concept note on ecosystem services mapping and linkages to models. Project report submitted to IUCN under the project "Water Infrastructure Solutions from Ecosystem Services Underpinning Climate Resilient Policies and Programmes (WISE-UP to Climate)" Gland, Switzerland: International Union for Conservation of Nature (IUCN). 4p.
Ecosystem services ; Mapping ; Models ; Climate change ; River basins / Kenya / Ghana / Tana River Basin / Volta River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H046676)
(0.38 MB)
5 Mul, Marloes L.; McCartney, Matthew P.; Baker, Tracy. 2014. Concept note on instrumented catchments in the Tana and Volta river basin. Project report submitted to IUCN under the project "Water Infrastructure Solutions from Ecosystem Services Underpinning Climate Resilient Policies and Programmes (WISE-UP to Climate)" Gland, Switzerland: International Union for Conservation of Nature (IUCN) 4p.
Catchment areas ; River basins ; Climate change ; Ecosystems / Kenya / Ghana / Tana River Basin / Volta River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H046677)
(0.29 MB)
6 Baker, Tracy. 2014. Proceedings of the Workshop to Establish Guidelines for Using SWAT to Assess Ecosystem Services. Summaries of presentations and discussions held during the SWAT Community of Practice Meeting, Addis Ababa, Ethiopia, 15-17 October 2014. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 28p.
Ecosystem services ; Guidelines ; Water resources ; Water management ; Water demand ; Water availability ; Water quality ; Soils ; Assessment ; Watershed management ; Groundwater ; River basin management ; Aquifers ; Models ; Social aspects ; Political aspects ; Economic aspects ; Environmental effects ; Living standards ; Landscape ; Land use ; Agriculture ; Hydrology ; Sustainability ; Investment / Central Asia / South Asia / Southeast Asia / Africa / Latin America / India / Tana River Basin / Krishna Basin / Ganges Aquifer / Tigris River
(Location: IWMI HQ Call no: e-copy only Record No: H047141)
https://cgspace.cgiar.org/bitstream/handle/10568/67026/SWATMeeting_2014_small-1.pdf?sequence=3
https://vlibrary.iwmi.org/pdf/H047141.pdf
https://vlibrary.iwmi.org/pdf/H047141.pdf
(10.7 MB)
7 Baker, Tracy; Kiptala, J.; Olaka, L.; Oates, N.; Hussain, Asghar; McCartney, Matthew. 2015. Baseline review and ecosystem services assessment of the Tana River Basin, Kenya. Colombo, Sri Lanka: International Water Management Institute (IWMI). 107p. (IWMI Working Paper 165) [doi: https://doi.org/10.5337/2015.223]
Ecosystem services ; Assessment ; River basins ; Land cover ; Land use ; Land management ; Pastoral lands ; Highlands ; Living standards ; Farmland ; Small scale farming ; Rainfed farming ; Coastal area ; Biodiversity conservation ; Soils ; Climate change ; Floodplains ; Flooding ; Surface water ; Sedimentation ; Natural resources ; Infrastructure ; Groundwater recharge ; Wetlands ; Forests ; Eucalyptus ; Dams ; Irrigation schemes ; Sand ; Mining ; Charcoal ; Livestock production ; Socioeconomic environment ; Water power ; Energy generation ; Food security / Kenya / Tana River Basin
(Location: IWMI HQ Call no: IWMI Record No: H047535)
(4 MB)
The ‘WISE-UP to climate’ project aims to demonstrate the value of natural infrastructure as a ‘nature-based solution’ for climate change adaptation and sustainable development. Within the Tana River Basin, both natural and built infrastructure provide livelihood benefits for people. Understanding the interrelationships between the two types of infrastructure is a prerequisite for sustainable water resources development and management. This is particularly true as pressures on water resources intensify and the impacts of climate change increase. This report provides an overview of the biophysical characteristics, ecosystem services and links to livelihoods within the basin.
8 Hussain, Asghar; Baker, Tracy. 2016. Tana River Basin, Kenya: geodatabase and mapping tool. User guide. Colombo, Sri Lanka: International Water Management Institute (IWMI). 138p. [doi: https://doi.org/10.5337/2016.210]
Administration ; Infrastructure ; Geography ; Land use ; Land cover ; Living standards ; River basin management ; Watersheds ; Guidelines ; Software ; Imagery ; GIS ; Mapping ; Meteorological stations ; Temperature ; Soils ; Irrigation ; Farming systems ; Water power ; Dams ; Population density ; Demography ; Natural resources ; Environmental effects ; Urban areas ; Rangelands ; Water resources / Kenya / Tana River Basin
(Location: IWMI HQ Call no: IWMI Record No: H047737)
(2 MB)
9 Sood, Aditya; Muthuwatta, Lal; Silva, Sandeepana; McCartney, Matthew. 2017. Understanding the hydrological impacts of climate change in the Tana River Basin. Colombo, Sri Lanka: International Water Management Institute (IWMI) 40p. (IWMI Working Paper 178) [doi: https://doi.org/10.5337/2017.220]
Climate change ; Rain ; Evapotranspiration ; Flooding ; River basin ; Hydrology ; Discharges ; Water yield ; Groundwater recharge ; Natural resources ; Infrastructure ; Land use ; Ecosystem services ; Soil water ; Simulation models / Kenya / Tana River Basin
(Location: IWMI HQ Call no: IWMI Record No: H048449)
(2 MB)
The Tana River is one of Kenya’s most important rivers. It is the principal water source for Nairobi, the capital city, providing water for hydroelectric power generation and irrigation. Several of the flagship projects laid out in Vision 2030 - the blueprint that guides Kenya’s national development – are located in the basin. This report presents the findings of a study to determine the possible impacts of climate change on the hydrology of the basin. Data from seven Regional Circulation Models (RCMs), simulating two Representative Concentration Pathways (RCPs), were used as input to the Soil and Water Assessment Tool (SWAT) hydrological model. For both RCPs, rainfall is projected to increase across the basin over the remainder of the twenty-first century. Associated increases in water yield, groundwater recharge and baseflow point to an improved water resource situation in the future. However, declining natural flow regulation, increased variability, and considerable increases in the frequency and magnitude of floods pose a risk that threatens to undermine development opportunities. Water resource management will be much more difficult than under historic climatic conditions.
10 Muthuwatta, Lal; Sood, A.; McCartney, Matthew; Silva, N. S.; Opere, A. 2018. Understanding the impacts of climate change in the Tana River Basin, Kenya. Proceedings of the International Association of Hydrological Sciences, 379:37-42. [doi: https://doi.org/10.5194/piahs-379-37-2018, 2018]
Climate change ; River basins ; Soils ; Water resources ; Water management ; Water yield ; Assessment ; Hydrology ; Groundwater recharge ; Policy making ; Performance indexes ; Rain / Kenya / Tana River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H048786)
https://www.proc-iahs.net/379/37/2018/piahs-379-37-2018.pdf
https://vlibrary.iwmi.org/pdf/H048786.pdf
https://vlibrary.iwmi.org/pdf/H048786.pdf
(779 KB)
In the Tana River Basin in Kenya, six Regional Circulation Models (RCMs) simulating two Representative Concentration Pathways (RCPs) (i.e., 4.5 and 8.5) were used as input to the Soil and Water Assessment Tool (SWAT) model to determine the possible implications for the hydrology and water resources of the basin. Four hydrological characteristics – water yield, groundwater recharge, base flow and flow regulation – were determined and mapped throughout the basin for three 30-year time periods: 2020–2049, 2040–2069 and 2070–2099. Results were compared with a baseline period, 1983–2011. All four hydrological characteristics show steady increases under both RCPs for the entire basin but with considerable spatial heterogeneity and greater increases under RCP 8.5 than RCP 4.5. The results have important implications for the way water resources in the basin are managed. It is imperative that water managers and policy makers take into account the additional challenges imposed by climate change in operating built infrastructure.
11 McCartney, Matthew; Foudi, S.; Muthuwatta, Lal; Sood, Aditya; Simons, G.; Hunink, J.; Vercruysse, K.; Omuombo, C. 2019. Quantifying the services of natural and built infrastructure in the context of climate change: the case of the Tana River Basin, Kenya. Colombo, Sri Lanka: International Water Management Institute (IWMI). 61p. (IWMI Research Report 174) [doi: https://doi.org/10.5337/2019.200]
Climate change ; Natural environment ; Manmade structures ; Infrastructure ; Upstream ; Downstream ; Dam construction ; Floodplains ; Flood control ; Flow discharge ; Economic analysis ; Economic impact ; Hydroelectric power ; Hydrological factors ; Soils ; Reservoirs ; Marine fisheries ; Estuarine fisheries ; Inland fisheries ; Flood irrigation ; Coastal area ; Sediment ; River basins ; Cost benefit analysis ; Ecosystem services ; Smallholders ; Grazing ; Decision making ; Land management / Kenya / Tana River Basin
(Location: IWMI HQ Call no: IWMI Record No: H049163)
(2.31 MB)
This report presents findings from a study conducted to explore the synergies and trade-offs between built (i.e., engineered) and natural (i.e., ecological systems) infrastructure in the Tana River Basin, Kenya. The study considered hydrological, ecological and economic processes in order to value flow-related ecosystem services. It provides quantitative insights into the links between flow and the benefits derived from both built and natural infrastructure. The results provide initial perspectives not just on the monetary values of a number of ecosystem services (and how they change as flows vary and are altered by large dams) but also, importantly, aspects of equity and social inclusion, that also need to be considered in decision-making.
12 Hurford, A. P.; McCartney, Matthew P.; Harou, J. J.; Dalton, J.; Smith, D. Mark; Odada, E. 2020. Balancing services from built and natural assets via river basin trade-off analysis. Ecosystem Services, 45:101144. [doi: https://doi.org/10.1016/j.ecoser.2020.101144]
Ecosystem services ; River basins ; Environmental flows ; Energy generation ; Hydropower ; Infrastructure ; Reservoirs ; Dams ; Water storage ; Water resources ; Water management ; Flood control ; Floodplains ; Fisheries ; Assets ; Costs ; Decision making ; Models / Kenya / Tana River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H049875)
https://www.sciencedirect.com/science/article/pii/S2212041620300863/pdfft?md5=5b0f3cf063467820e2b7131cbd23bd32&pid=1-s2.0-S2212041620300863-main.pdf
https://vlibrary.iwmi.org/pdf/H049875.pdf
https://vlibrary.iwmi.org/pdf/H049875.pdf
(17.10 MB) (17.1 MB)
Built water infrastructure impacts the balance of services provided by a river and its flow regime. Impacts on both commercial and subsistence activities should be considered in water management decision-making. Various methods used to define mandatory minimum environmental releases do not account for the inherent and often complex trade-offs and synergies which must be considered in selecting a balance of ecosystem and engineered services. This paper demonstrates the value and use of optimised many-objective trade-off analysis for managing resource-systems providing diverse and sometimes competing services. Using Kenya’s Tana River basin as a demonstration it shows controlled releases from multi-reservoir systems can be optimised using multiple performance metrics, representing individual provisioning ecosystem and engineered services at different locations and relating to different time periods. This enables better understanding the interactions between natural and built assets, and selecting river basin interventions that appropriately trade-off their services. Our demonstration shows prioritising Kenya’s statutory minimum environmental ‘reserve’ flows degrades flood-related provisioning services. Low overall flow regime alteration correlates negatively with consistency of hydropower generation, but positively with other provisioning services.
13 Foudi , S.; McCartney, Matthew; Markandya, A.; Pascual, U. 2023. The impact of multipurpose dams on the values of nature’s contributions to people under a water-energy-food nexus framing. Ecological Economics, 206:107758. [doi: https://doi.org/10.1016/j.ecolecon.2023.107758]
Dams ; Reservoirs ; Water resources ; Energy ; Food systems ; Nexus approaches ; Natural environment ; Ecosystem services ; Equity ; River basins ; Economic value ; Floods ; Hydrology ; Hydroelectric power generation ; Social aspects ; Ecological factors ; Communities / Kenya / Tana River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H051684)
(1.62 MB)
The paper proposes a probabilistic approach to the assessment of the impacts of multipurpose dams. It is framed around the notion of Nature’s Contributions to People (NCP) in the setting of the Water-Energy-Food nexus. The socio-ecological context of the Tana River Basin in Kenya and the construction of two multipurpose dams are used to highlight co-produced positive and negative NCP under alternative river regimes. These regimes produce both damaging floods that ought to be controlled and beneficial floods that ought to be allowed. But the river regime that results from hydropower generation and flood risk reduction may not be the one that is most conducive to food and feed-based NCP. The approach relates the economic value of river-based NCP coproduction to the probability of flooding to derive the expected annual value of NCP and a NCP value-probability curve. The relation between NCP flows and flood characteristics is tested and estimated based on regression analyses with historical data. Results indicate that the net economic value of key NCP associated with multipurpose dams for local people and associated social equity effects largely depend on the frequency of flood events and on the way impacts are distributed across communities, economic sectors and time.
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