Your search found 53 records
1 Molden, David; de Fraiture, Charlotte. 2000. Major paths to increasing the productivity of irrigation water. In International Water Management Institute (IWMI), World water supply and demand: 1995-2025. Draft report. pp.41-50.
Irrigation water ; Productivity ; Irrigation efficiency ; Water use ; River basins ; Water management ; Recycling ; Irrigation systems
(Location: IWMI-HQ Call no: IWMI 631.7 G000 IWM Record No: H035068)
(0.82 MB)
2 de Fraiture, Charlotte; Amarasinghe, Upali. 2000. The PODIUM model. In IWMI, World water supply and demand: 1995-2025 – draft report. pp.51-60.
Water supply ; Water demand ; Water scarcity ; Forecasting ; Models ; Food production ; Water use ; Domestic water ; Evaporation
(Location: IWMI-HQ Call no: IWMI 631.7 G000 IWM Record No: H035069)
3 de Fraiture, Charlotte; Cai, X; Amarasinghe, Upali; Rosegrant, M.; Molden, David. 2004. Does international cereal trade save water?: the impact of virtual water trade on global water use. Colombo, Sri Lanka: International Water Management Institute (IWMI), Comprehensive Assessment Secretariat. v, 32p. (Comprehensive Assessment of Water Management in Agriculture Research Report 004) [doi: https://doi.org/10.3910/2009.389]
Cereals ; Trade policy ; Water use ; Irrigation water ; Productivity ; Evapotranspiration ; Water scarcity ; Water conservation
(Location: IWMI-HQ Call no: IWMI 631.7 G000 DEF Record No: H035342)
(2.58 MB)
4 Molden, David; de Fraiture, Charlotte. 2004. Investing in water for food, ecosystems and livelihoods. Blue paper. Discussion draft. Stockholm 2004. Colombo, Sri Lanka: Comprehensive Assessment Secretariat. 22p.
Water requirements ; Water use ; Water resource management ; Irrigation management ; Rural women ; Poverty ; Food security ; Ecosystems ; Irrigation efficiency ; Productivity ; Rain-fed farming ; Drought ; Groundwater management
(Location: IWMI-HQ Call no: IWMI 631.7 G000 MOL Record No: H035459)
5 Amarasinghe, Upali A.; Sharma, Bharat R.; Aloysius, Noel; Scott, Christopher; Smakhtin, Vladimir; de Fraiture, Charlotte. 2004. Spatial variation in water supply and demand across river basins of India. Colombo, Sri Lanka: International Water Management Institute (IWMI). v, 37p. (IWMI Research Report 083) [doi: https://doi.org/10.3910/2009.084]
Water supply ; Water demand ; River basins ; Catchment areas ; Water availability ; Water scarcity ; Estimation ; Irrigation water ; Domestic water ; Population growth ; Urbanization ; Groundwater extraction ; Crop production ; Policy ; Water transfer / India
(Location: IWMI-HQ Call no: IWMI 333.91 G635 AMA Record No: H036620)
(2.09MB)
India is a large country with regional differences in per-capita water supply and demand. Attempts to describe the water situation in India at a national level are often misleading due to the tremendous diversity in the water situation across the country. This Report analyzes the spatial variation of water supply and demand across river basins in India. The study identifies basins that are water-scarce because of inadequate water availability to meet the effective demand. It also identifies issues that are important for estimating the future water demand and for the formation of policy for future water-resources development and management.
6 Thenkabail, Prasad Srinivas; Biradar, Chandrashekhar; Gangodagamage, Chandana; Islam, Aminul; Schull, Mitchell; Gamage, Nilantha; Turral, Hugh; Zomer, Robert; Biggs, Trent; Scott, Christopher; Ahmad, Mobin-ud Din; De Fraiture, Charlotte. 2004. RS/GIS training materials for awareness: version 1.0. Print out of powerpoint presentation made at the Observing river basins from space: why is it important for IWMI - A Remote Sensing and GIS (RS/GIS) Workshop held at the International Water Management Institute, Colombo, Sri Lanka, 28 June 2004. RS/GIS training materials. 6p.
(Location: IWMI-HQ Call no: IWMI 574.526323 G000 IWM Record No: H036216)
7 Molden, David; de Fraiture, Charlotte. 2005. Balancing the water demands of agriculture and conservation. id21 Natural Resources Highlights - Water, pp.2.
(Location: IWMI-HQ Call no: P 7492 Record No: H038280)
8 de Fraiture, Charlotte. 2003. The use of entropy optimization principles in parameter estimation: applications to global water demand modeling. PhD thesis submitted to the Faculty of the Graduate School of the University of Colorado for the degree of Doctor of philosophy, Dept. of Civil, Environmental and Architectural Engineering. xiii, 198p.
Water demand ; Models ; Calibration ; Irrigated farming ; Rain-fed farming ; Hydrology ; Water use ; Food production ; Crop production
(Location: IWMI-HQ Call no: IWMI 631.7.1 G000 DEF Record No: H038820)
9 de Fraiture, Charlotte. 2002. The impact of volumetric water pricing on agricultural water use and farmer profit: A multi-scale modeling framework. M Sc thesis submitted to the Faculty of Graduate School of the University of Colorado, Department of Economics. vi, 64p.
Water rates ; Cost recovery ; Models ; Farmers' attitudes ; Water delivery ; Crop production ; Irrigation efficiency ; Sensitivity analysis
(Location: IWMI-HQ Call no: IWMI 631.7.4 G000 DEF Record No: H038825)
10 de Fraiture, Charlotte. 2007. Integrated water and food analysis at the global and basin level: an application of WATERSIM. Water Resources Management, 21(1): 185-198.
Models ; Water demand ; Water supply ; Water allocation ; Water balance ; Food production ; Analysis
(Location: IWMI-HQ Call no: IWMI 631.7.1 G000 DEF Record No: H039713)
11 Molden, David; Frenken, K.; Barker, R.; de Fraiture, Charlotte; Mati, Bancy; Svendsen, M.; Sadoff, Claudia W.; Finlayson, Max; Atapattu, Sithara; Giordano, Mark; Inocencio, Arlene; Lannerstad, Mats; Manning, Nadia; Molle, Francois; Smedema, B.; Vallee, Domitille. 2007. Trends in water and agricultural development. In Molden, David (Ed.). Water for food, water for life: a Comprehensive Assessment of Water Management in Agriculture. London, UK: Earthscan; Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.57-89.
(Location: IWMI HQ Call no: IWMI 630.7 G000 IWM Record No: H040195)
(2.95 MB)
12 de Fraiture, Charlotte; Wichelns, D.; Rockstrom, J.; Kemp-Benedict, E.; Eriyagama, Nishadi; Gordon, L. J.; Hanjra, M. A.; Hoogeveen, J.; Huber-Lee, A.; Karlberg, L. 2007. Looking ahead to 2050: scenarios of alternative investment approaches. In Molden, David (Ed.). Water for food, water for life: a Comprehensive Assessment of Water Management in Agriculture. London, UK: Earthscan; Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.91-145.
Food supply ; Food production ; Fisheries ; Water use ; Rainfed farming ; Irrigated farming ; Ecosystems ; Poverty
(Location: IWMI HQ Call no: IWMI 630.7 G000 IWM Record No: H040196)
(2.97 MB)
13 Liao, Yongsong; Giordano, Mark; de Fraiture, Charlotte. 2007. An empirical analysis of the impacts of irrigation pricing reforms in China. Water Policy, 9(Supplement 1):45-60.
Irrigation management ; Cost recovery ; Water policy ; Irrigation efficiency ; Farm income ; Rice ; Wheat ; Maize ; Canals ; Water distribution ; Water user associations / China / Wudu Irrigation District / Yangtze River Basin / Jinghuiqu Irrigation District / Shijin Irrigation District / Haihe River Basin
(Location: IWMI HQ Call no: IWMI 631.7.4 G592 LIA, PER Record No: H040231)
14 Cai, X.; de Fraiture, Charlotte; Hejazi, M. 2007. Retrieval of irrigated and rainfed crop data using a general maximum entropy approach. Irrigation Science, 25:325-338.
(Location: IWMI HQ Call no: IWMI 631 G430 CAI Record No: H040232)
15 de Fraiture, Charlotte; Perry, C. J. 2007. Why is agricultural water demand unresponsive at low price ranges? In Molle, Francois; Berkoff, J. (Eds.). Irrigation water pricing: the gap between theory and practice. Wallingford, UK: CABI. pp.94-107. (Comprehensive Assessment of Water Management in Agriculture Series 4)
Irrigation water ; Cost recovery ; Pricing ; Water costs ; Water use efficiency ; Irrigation efficiency
(Location: IWMI HQ Call no: IWMI 631.7.4 G000 MOL Record No: H040602)
16 Lundqvist, J.; de Fraiture, Charlotte; Molden, David. 2007. From field to fork: wastage of water in the food chain. Stockholm Water Front, 3:14-15.
(Location: IWMI HQ Call no: IWMI 631.7 G000 LUN Record No: H040634)
http://www.siwi.org/downloads/WF%20Magazine/WF-3-2007-web.pdf
https://vlibrary.iwmi.org/pdf/H040634.pdf
https://vlibrary.iwmi.org/pdf/H040634.pdf
(0.20 MB)
17 Molden, David; de Fraiture, Charlotte; Rijsberman, Frank. 2007. Water scarcity: The food factor. Issues in Science and Technology, Summer:39-48.
(Location: IWMI HQ Call no: IWMI 338.19 G000 MOL Record No: H040635)
18 Nangia, Vinay; de Fraiture, Charlotte; Turral, Hugh. 2008. Water quality implications of raising crop water productivity. Agricultural Water Management, 95(7):825-835.
Irrigated farming ; Crop production ; Water requirements ; Water management ; Water quality ; Productivity ; Nitrogen ; Simulation models ; Decision Support Systems ; Soil water ; Water balance ; Fertilizers / USA / Florida
(Location: IWMI HQ Call no: IWMI 631.7.1 G430 NAN Record No: H040741)
Because of a growing and more affluent population, demand for agricultural products will increase rapidly over the coming decades, with serious implications for agricultural water demand. Symptoms of water scarcity are increasingly apparent, threatening ecosystem services and the sustainability of food production. Improved water productivity will reduce the additional water requirements in agriculture. However, there is a tradeoff between the quantity of water used in agriculture and the quality of return flow. Where yields are low due to limited nitrogen (N) and water supply, water productivity can be enhanced through higher fertilizer applications and improved water management. This limits the amount of additional water needed for increased food demand, thus leaving more water for environmental requirements. But it also increases the amount of nitrate (NO3–N) leaching, thus adversely affecting the water quality of return flows. This paper quantifies the tradeoff between enhanced water productivity and NO3–N leaching and shows the importance of the right management of water and N applications. Using the Decision Support System for Agro-technology Transfer (DSSAT) crop model, several scenarios combining different water and N application regimes are examined for maize (Zea mays L.) in Gainesville, FL, USA. Without adequate water, nitrogen use efficiency (NUE) remains low, resulting in substantial NO3–N leaching. Too much water leads to excessive NO3–N leaching and lower water productivity. The lack of N is a cause of low water productivity but too much of it leads to lower NUE and higher losses. The paper concludes that increased NO3–N leaching is an inevitable by-product of increased water productivity, but its adverse impacts can greatly be reduced by better management of water and N application. The paper briefly shows that leaching can be reduced and water productivity increased by split application of N-fertilizer. This implies that improved water and nutrient management at field- and scheme-level is a prerequisite to limit adverse impacts of agriculture on ecosystems, now and especially in the future.
19 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.
20 de Fraiture, Charlotte. 2008. Biofuel crops could drain developing world dry. SciDev.Net: Science and Development Network, 30 January 2008: 1-2.
Biofuels ; Energy resources ; Water shortage ; Water stress ; Water scarcity ; Risks ; Constraints ; Irrigation water ; Water demand ; Cereals ; Rice ; Sugarcane ; Environmental effects / China / India / Brazil
(Location: IWMI HQ Call no: IWMI 338.1 G000 DEF Record No: H040788)
http://www.scidev.net/opinions/index.cfm?fuseaction=printarticle&itemid=607&language=1
https://vlibrary.iwmi.org/pdf/H040788.pdf
https://vlibrary.iwmi.org/pdf/H040788.pdf
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