Your search found 16 records
1 Ngigi, S. N.; Savenije, H. H. G.; Gichuki, Francis. 2007. Land use changes and hydrological impacts related to up-scaling of rainwater harvesting and management in upper Ewaso Ng’iro River Basin, Kenya. Land Use Policy, 24:(1)129-140.
Land use ; Policy ; River basins ; Rainfall-runoff relationships ; Hydrology ; Models ; Water resource management ; Water balance / Kenya / Ewaso Ng’iro River Basin
(Location: IWMI-HQ Call no: IWMI 333.91 G140 NGI Record No: H038184)
2 Gichuki, Francis. 2002. Water conflicts in the Upper Ewaso Ngiro North Basin: causes, impacts and management strategies. E-conference paper. 22p.
River basins ; Water management ; Conflict ; Water demand ; Water supply ; Water storage ; Social impact ; Economic impact ; Environmental effects ; Water scarcity / Kenya / Upper Ewaso Ngiro North Basin
(Location: IWMI-HQ Call no: IWMI 333.91 G140 GIC Record No: H038891)
3 Gichuki, Francis. 2004. Managing the externalities of declining dry season river flow: a case study from the Ewaso Ngiro North River Basin, Kenya. Water Resources Research, 40. 8p.
Rivers ; Hydrology ; Runoff ; Stream flow ; Policy ; Regional planning ; Irrigation management ; Conflict ; Water user associations ; Economic aspects ; Social aspects / Kenya / Ewaso Ngiro North River Basin
(Location: IWMI-HQ Call no: IWMI 631.7 G140 GIC Record No: H038894)
Upstream-downstream water conflicts are common phenomenon in most basins. Such conflicts take a different dimension when they occur during dry season with an already low level of river flows. This context aggravates the spatial externalities on downstream communities and water-dependent ecosystems, causing serious socioeconomic and ecological effects. Utilizing an analytical framework to capture the causes and consequences of the spatial nature of these externalities and relying on both primary and secondary data pertaining to the Upper Ewaso Ngiro North basin in Kenya, this paper (1) shows how these externalities are caused more by upstream land and water use changes than by any climatic and hydrological factors, (2) evaluates the nature and magnitude of their impacts on different downstream community groups, (3) assesses the extent and success of past policy responses and local initiatives, and (4) concludes by indicating the needed approach and interventions for finding a durable solution to the problem of upstream-downstream water conflicts and externalities.
4 Cook, Simon; Gichuki, Francis; Turral, Hugh. 2006. Water productivity: measuring and mapping in benchmark basins. Estimation at plot, farm and basin scale. Colombo, Sri Lanka: International Water Management Institute (IWMI). Challenge Program Secretariat. 16p. (Challenge Program on Water and Food, Basin Focal Project Working Paper 2)
Irrigated farming ; Productivity ; Estimation ; Water balance ; Water use ; Simulation models ; Water use efficiency ; Livestock ; Fisheries
(Location: IWMI-HQ Call no: IWMI 631.7 G000 COO Record No: H039742)
5 Cook, Simon; Gichuki, Francis; Turral, Hugh. 2006. Agricultural water productivity: issues, concepts and approaches. Colombo, Sri Lanka: International Water Management Institute (IWMI). Challenge Program Secretariat. 17p. (Challenge Program on Water & Food, Basin Focal Project Working Paper 1)
(Location: IWMI-HQ Call no: IWMI 631.7 G000 COO Record No: H039744)
6 Hussain, I.; Gichuki, Francis; Louw, A.; Andah, W.; Moustafa, M. 2007. Agricultural water management pathways to breaking the poverty trap: Case studies of the Limpopo, Nile and Volta river basins. Irrigation and Drainage, 56:277-288.
River basin management ; Water potential ; Crop yield ; Rice ; Maize ; Poverty / Africa South of Sahara / Limpopo River Basin / Nile river Basin / Volta River Basin
(Location: IWMI HQ Call no: IWMI 631.7 G110 HUS Record No: H040005)
7 de Fraiture, Charlotte; Smakhtin, Vladimir; Bossio, Deborah; McCornick, Peter G.; Hoanh, Chu Thai; Noble, Andrew; Molden, David; Gichuki, Francis; Giordano, Mark; Finlayson, Max; Turral, Hugh. 2007. Facing climate change by securing water for food, livelihoods and ecosystems. Journal of SAT Agricultural Research, 4(1). 21p.
Climate change ; Flooding ; Drought ; Risks ; Ecosystems ; Wetlands ; Water resource management ; Food security ; Food production ; Productivity ; Rainfed farming ; Irrigated farming ; Water storage
(Location: IWMI HQ Call no: IWMI 338.1 G000 DEF Record No: H040782)
Future changes in water availability due to climate change (CC) are of paramount importance for food security of millions of rural people worldwide. Many recent extremes of water shortage followed by devastating floods reflect some of the climate change predictions, which are gradually becoming more certain and alarming. Appropriate measures in agricultural water management can greatly reduce poor people’s vulnerability to CC by reducing water related risks and creating buffers against often unforeseen changes in precipitation and water availability. An appropriate water research agenda is essential to improve our knowledge of the linkages between water, food and CC and guide the right investments aimed at improving resilience of farming communities and food security. This agenda includes understanding the adaptation and mitigation roles of agricultural practices and water resources management options, characterization of climate change impacts at different scales, and evaluation of water implications of direct climate change mitigation interventions. This agenda will result in strategies that contribute to reduced risk and enhanced resilience of agricultural systems. Building on its research capital in the water, food and livelihood nexus, IWMI is in a good position to help formulate and implement this agenda.
8 Abayawardana, Sarath; Marikar, Fuard; Wijerathna, Deeptha; Gichuki, Francis. (Comps.) 2006. Development strategy for the irrigation sector of Sri Lanka 2006-2016. Report prepared by IWMI, Colombo, Sri Lanka for the National Planning Department, Sri Lanka. 25p.
Irrigation management ; Development plans ; Policy ; Operations ; Maintenance ; Rehabilitation ; Investment planning ; Watersheds ; Institutional development / Sri Lanka / Mahaweli Project
(Location: IWMI HQ Call no: IWMI 631.7 G744 ABA Record No: H040801)
(0.72 MB)
9 Munir, Sarfraz; Schultz, B.; Khan, Abdul Hakeem; Suryadi, F. X.; Gichuki, Francis. 2007. Hydrodynamic behavior of a canal network under simultaneous supply and demand based operations. Paper presented at the USCID Fourth International Conference on Irrigation and Drainage held in Sacramento, California, USA, 3-6 October, 2007. 17p.
Irrigation canals ; Flow control ; Canal regulation techniques ; Crop based irrigation ; Water requirements ; Irrigation scheduling ; Simulation models / Pakistan / Machai Branch Canal / Pehure High Level Canal / Maira Branch Canal / North West Frontier Province / Swat River / Indus River
(Location: IWMI HQ Call no: IWMI 631.7.1 G730 MUN Record No: H040871)
The irrigation network of this study consists of three branch canals (the Machai Branch Canal, the Pehure High Level Canal (PHLC) and the Maira Branch Canal) connected to each other in such a way that the Machai Branch and the PHLC feed the Maira Branch Canal for providing a reliable irrigation service. The Machai Branch Canal has limited and erratic discharges and can not fulfill the peak water requirements of the Maira Branch Canal and therefore any deficiency in the supplies to the Maira Branch Canal is automatically compensated by the PHLC. PHLC is an automatic canal and has been equipped with Proportional Integral Derivative (PID) discharge controllers at its head whereas the Machai Branch Canal has fixed supply based operations. The Maira Branch Canal is also an automatically downstream controlled irrigation canal, which is operated according to crop water requirements using Crop Based Irrigation Operations (CBIO) model. Under this scheme of operations the flows remain changing most of the time following the crop water requirements curve. The frequent changes in discharges keep the canal in unsteady state conditions, which affect the functioning of automatic discharge and water level regulation structures. Efficient system operation is a prerequisite for getting better water productivity and the precise understanding of the behavior of the structures and canal’s hydrodynamics against such changes is a key for getting effective system operations. In this paper the canal’s hydrodynamic behavior and the automatic structures’ functioning have been assessed and suggestions have been provided to fine tune the automatic discharge controllers in order to avoid the oscillatory and abrupt hydrodynamic behavior in the canal. The guidelines have been provided for the operation of the secondary system for achieving smooth and sustainable operations of the canals. In addition to this the effects of any discharge variation in the Machai Branch Canal on the automatic discharge controller’s behavior also has been assessed.
10 Hanjra, M. A.; Gichuki, Francis. 2008. Investments in agricultural water management for poverty reduction in Africa: case studies of Limpopo, Nile, and Volta river basins. Natural Resources Forum, 32:185-202.
River basin management ; Poverty ; Irrigated farming ; Agricultural production ; Policy ; Investment ; Social aspects / Africa / Africa South of Sahara / Limpopo / Nile / Volta
(Location: IWMI HQ Call no: IWMI 631.7.3 G110 HAN, PER Record No: H041547)
11 Gichuki, Francis; Molden, David. 2008. Bright basins: do many bright spots make a basin shine? In Bossio, Deborah; Geheb, Kim (Eds.). Conserving land, protecting water. Wallingford, UK: CABI; Colombo, Sri Lanka: International Water Management Institute (IWMI); Colombo, Sri Lanka: CGIAR Challenge Program on Water & Food. pp.149-162. (Comprehensive Assessment of Water Management in Agriculture Series 6)
River basins ; Hydrology ; Flow ; Soil conservation ; Water conservation ; Watersheds ; Case studies / Kenya / China / USA / Athi River Basin / Machakos watersheds / Yellow River Basin / New York watersheds
(Location: IWMI HQ Call no: IWMI 631.7 G000 BOS Record No: H041599)
12 Humphreys, E.; Bayot, R. S.; van Brakel, M.; Gichuki, Francis; Svendsen, M.; Wester, P.; Huber-Lee, A.; Cook, S.; Douthwaite, B.; Hoanh, Chu Thai; Johnson, N.; Nguyen-Khoa, Sophie; Vidal, A.; MacIntyre, I.; MacIntyre, R. (Eds.) 2008. Fighting poverty through sustainable water use: proceedings of the CGIAR Challenge Program on Water and Food, 2nd International Forum on Water and Food, Addis Ababa, Ethiopia, 10-14 November 2008. Vol.2. Increasing rainwater productivity; Multi-purpose water systems. Colombo, Sri Lanka: CGIAR Challenge Program on Water and Food. 297p.
Water resource management ; Water productivity ; River basins ; Water quality ; Groundwater ; Irrigation management ; Rice ; Water conservation ; Irrigated farming ; Rainfed farming ; Water harvesting ; Livestock ; Agroecosystems ; Gender ; Soil salinity ; Fertilizers ; Fisheries ; Reservoirs ; Irrigation systems ; Floodplains ; Irrigation systems ; Models ; Watershed management ; Lakes / South East Asia / Bangladesh / China / Cambodia / India / Africa / Zimbabwe / Iran / Ethiopia / South Africa / Vietnam / Colombia / Bhutan / Thailand
(Location: IWMI HQ Call no: IWMI 333.91 G000 HUM Record No: H041790)
http://cgspace.cgiar.org/bitstream/handle/10568/3707/IFWF2_proceedings_Volume%20II.pdf?sequence=1
https://vlibrary.iwmi.org/pdf/H041790.pdf
https://vlibrary.iwmi.org/pdf/H041790.pdf
(7.09 MB)
13 Humphreys, E.; Bayot, R. S.; van Brakel, M.; Gichuki, Francis; Svendsen, M.; Wester, P.; Huber-Lee, A.; Cook, S.; Douthwaite, B.; Hoanh, Chu Thai; Johnson, N.; Nguyen-Khoa, Sophie; Vidal, A.; MacIntyre, I.; MacIntyre, R. (Eds.) 2008. Fighting poverty through sustainable water use: proceedings of the CGIAR Challenge Program on Water and Food, 2nd International Forum on Water and Food, Addis Ababa, Ethiopia, 10-14 November 2008. Vol.3. Water benefits sharing for poverty alleviation and conflict management; Drivers and processes of change. Colombo, Sri Lanka: CGIAR Challenge Program on Water and Food. 217p.
Water resource management ; Conflict ; Reservoirs ; Dams ; River basins ; Groundwater ; Electricity supplies ; Policy ; Poverty ; Analysis ; Watersheds ; Water productivity ; Irrigated farming / Africa / Ghana / South Africa / Mozambique / Zimbabwe / Ethiopia / Asia / India / Bangladesh / Iran / South East Asia / Thailand / Cambodia / Nepal / Latin America
(Location: IWMI HQ Call no: IWMI 333.91 G000 HUM Record No: H041791)
http://cgspace.cgiar.org/bitstream/handle/10568/3708/IFWF2_proceedings_Volume%20III.pdf?sequence=1
https://vlibrary.iwmi.org/pdf/H041791.pdf
https://vlibrary.iwmi.org/pdf/H041791.pdf
(4.88 MB)
14 Humphreys, E.; Bayot, R. S.; van Brakel, M.; Gichuki, Francis; Svendsen, M.; Wester, P.; Huber-Lee, A.; Cook, S.; Douthwaite, B.; Hoanh, Chu Thai; Johnson, N.; Nguyen-Khoa, Sophie; Vidal, A.; MacIntyre, I.; MacIntyre, R. (Eds.) 2008. Fighting poverty through sustainable water use: proceedings of the CGIAR Challenge Program on Water and Food, 2nd International Forum on Water and Food, Addis Ababa, Ethiopia, 10-14 November 2008. Vol.4. Project posters by phase 1 projects of the Challenge Program on Water and Food. Colombo, Sri Lanka: CGIAR Challenge Program on Water and Food. 40p.
River basin development ; Water resource management ; Water productivity ; Soil management ; Salinity ; Crop management ; Agroforestry ; Collective action ; Models ; Wetlands ; Dams ; Reservoirs ; Livestock ; Wastewater irrigation ; Public health ; Health hazards ; Groundwater ; Water governance ; Poverty ; Climate change ; Water allocation ; Rice / Africa / Ethiopia / Asia / South East Asia / Iran / Vietnam / Bangladesh / Nepal / Colombia / Volta River Basin / Indo-Gangetic River Basin / Nile River Basin / Karkheh River Basin / Mekong River Basin / Red River Basin / Yellow River Basin / Andes
(Location: IWMI HQ Call no: IWMI 333.91 G000 HUM Record No: H041792)
http://cgspace.cgiar.org/bitstream/handle/10568/3709/IFWF2_proceedings_Volume%20IV.pdf?sequence=1
https://vlibrary.iwmi.org/pdf/H041792.pdf
https://vlibrary.iwmi.org/pdf/H041792.pdf
(6.85 MB)
15 Gichuki, Francis; McCornick, Peter G. 2008. International experiences of water transfers: relevance to India. In Amarasinghe, Upali A.; Sharma, Bharat R. (Eds.) Strategic Analyses of the National River Linking Project (NRLP) of India, Series 2. Proceedings of the Workshop on Analyses of Hydrological, Social and Ecological Issues of the NRLP, New Delhi, India, 9-10 October 2007. Colombo, Sri Lanka: International Water Management Institute (IWMI) pp.345-371.
River basins ; Water scarcity ; Water transfer ; Planning ; Case studies ; History ; Water allocation ; Environmental effects ; Food security ; Poverty / USA / Mexico / Central Asia / Spain / China / Lesotho / South Africa / Brazil / India / Colorado River / Aral Sea Basin / Lake Arnasia / Segura Basin / Tagus Basin / Ebro Basin / Three Gorges Project / Yangtze River / Orange River / Vaal River / Sao Francisco Transbasin Project
(Location: IWMI HQ Call no: IWMI 333.9162 G635 AMA Record No: H041812)
(92.34 KB)
16 White, D.; Wester, F.; Huber-Lee, A.; Hoanh, Chu Thai; Gichuki, Francis. 2008. Water benefits sharing for poverty alleviation and conflict management. CPWF topic 3 synthesis paper. Colombo, Sri Lanka: CGIAR Challenge Program on Water and Food. 15p.
Water resource management ; International waters ; Water use ; Water allocation ; Water distribution ; International cooperation ; Benefits
(Location: IWMI HQ Call no: e-copy only Record No: H041862)
(0.43 MB)
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