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.
(Location: IWMI-HQ Call no: IWMI 631.7 G000 IWM Record No: H035068)
(0.82 MB)
(Location: IWMI-HQ Call no: IWMI 631.7 G000 IWM Record No: H035069)
(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.
(Location: IWMI-HQ Call no: IWMI 631.7 G000 MOL Record No: H035459)
(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)
(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.
(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.
(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.
(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.
(Location: IWMI HQ Call no: IWMI 630.7 G000 IWM Record No: H040196)
(2.97 MB)
(Location: IWMI HQ Call no: IWMI 631.7.4 G592 LIA, PER Record No: H040231)
(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)
(Location: IWMI HQ Call no: IWMI 631.7.4 G000 MOL Record No: H040602)
(Location: IWMI HQ Call no: IWMI 631.7 G000 LUN Record No: H040634)
(0.20 MB)
(Location: IWMI HQ Call no: IWMI 338.19 G000 MOL Record No: H040635)
(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.
(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.
(Location: IWMI HQ Call no: IWMI 338.1 G000 DEF Record No: H040788)
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