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Water and Other Food Constituents Texte intégral
2016
Schuck, Pierre
absent
Afficher plus [+] Moins [-]Water resources and food security Texte intégral
2015
Ringler, Claudia | Zhu, Tingju
Agricultural water use includes a continuum from purely rainfed to fully irrigated systems. Growing pressures on limited water supplies from domestic, industrial, and environmental uses will likely lead to a decline in water availability for food production. Similarly, income growth and urbanization lead to dietary shifts that require more water resources per calorie consumed, putting further pressures on water supplies. As a result, semiarid and arid countries continue to increase net imports of food. Crop water use for sugarcane (Saccharum officinarum L.), maize (Zea mays L.), soybean [Glycine max (L.) Merr.], and fruits are expected to grow over time, whereas water use for wheat (Triticum aestivum L.) and rice (Oryza sativa L.) are expected to decline after 2030. These projections include substantial improvements in water use efficiency at the field, farm, and river basin scale over the coming decades in response to growing water scarcity. If these efficiency improvements are not achieved, future crop water demands would be even larger. Although water resources are a key limiting factor for future food security, policy and investment options to reduce agricultural water use exist on both the water supply and demand side; but political will and ingenuity are needed for their implementation.
Afficher plus [+] Moins [-]Water, investment and food security Texte intégral
2014
colin j. chartres
Colin J. Chartres, 'Water, investment and food security', 2014 | Water resources are already very scarce. With further demand from population growth, dietary changes, biofuel production, urbanisation and climate change, it will be extremely difficult to find enough supply to enable an increase in global food production by 70 per cent. There are, however, potential solutions that involve increasing water productivity, improved water storage, more irrigation and re-using waste water. But current investment levels in overseas development aid and spending at country level are unlikely to be sufficient to ensure food security in the relatively short- term, let alone by 2050, when the global population is forecast to be nine billion. This article describes some of the issues that have to be faced to deliver food security and overcome water scarcity, and how these improvements can be achieved through a combination of science, policy and investment
Afficher plus [+] Moins [-]Water resources and food security Texte intégral
2014
Ringler, Claudia; Zhu, Tingju | http://orcid.org/0000-0002-8266-0488 Ringler, Claudia; http://orcid.org/0000-0002-6882-3551 Zhu, Tingju
Water resources and food security Texte intégral
2014
Ringler, Claudia; Zhu, Tingju | http://orcid.org/0000-0002-8266-0488 Ringler, Claudia; http://orcid.org/0000-0002-6882-3551 Zhu, Tingju
PR | IFPRI3; ISI; CRP5 | EPTD | CGIAR Research Program on Water, Land and Ecosystems (WLE)
Afficher plus [+] Moins [-]Water resources and food security Texte intégral
2015
Ringler, Claudia | Zhu, Tingju
Agricultural water use includes a continuum from purely rainfed to fully irrigated systems. Growing pressures on limited water supplies from domestic, industrial, and environmental uses will likely lead to a decline in water availability for food production. Similarly, income growth and urbanization lead to dietary shifts that require more water resources per calorie consumed, putting further pressures on water supplies. As a result, semiarid and arid countries continue to increase net imports of food. Crop water use for sugarcane (Saccharum officinarum L.), maize (Zea mays L.), soybean [Glycine max (L.) Merr.], and fruits are expected to grow over time, whereas water use for wheat (Triticum aestivum L.) and rice (Oryza sativa L.) are expected to decline after 2030. These projections include substantial improvements in water use efficiency at the field, farm, and river basin scale over the coming decades in response to growing water scarcity. If these efficiency improvements are not achieved, future crop water demands would be even larger. Although water resources are a key limiting factor for future food security, policy and investment options to reduce agricultural water use exist on both the water supply and demand side; but political will and ingenuity are needed for their implementation.
Afficher plus [+] Moins [-]Water scarcity and food security
2009
Chartres, Colin J. | Varma, Samyuktha
The food and water crisis Texte intégral
2008
International Water Management Institute (IWMI).
[Water purification in food industry] Texte intégral
2007
Lovkis, Z.V.,National Academy of Sciences, Minsk (Belarus). Scientific and Practical Center for Foodstuffs | Pranovich, M.V.,Belarus State Technological Univ., Minsk (Belarus)
This article discusses the basic ways of water-preparation in food industry. Water-preparation plan with elements of disinfecting for production of drinking water and drinks is given. The analysis shows that water should meet definite microbiological requirements. In order to reduce its fatal influence on the health of people the clearing and preparation of water are necessary. Development of techniques and means of clearing without chemical technologies, including ozone treatment technologies, allows one to lower and to get rid of application of chemical compounds and reagents. At the moment the ozone treatment water technologies with consequent treatment on filling filters are the most rational. Ozone is the strong oxidant and disinfects water faster than chlorine in some times. With activated carbon use both the flavouring qualities and smell become better. Technology of mutual ozone processing with absorption is the most perspective for water purification and disinfection, possessives a high efficiency in comparison with attitude to pathogen microorganisms, does not lead to the formation of harmful collateral products. Therefore, the questions of development of safe technologies and means for water preparation and treatment are actual and well timed
Afficher plus [+] Moins [-]Water for food and ecosystems
2003
This brochure has been developed for the Water for Food and Ecosystems programme on behalf of the 3rd World Water Forum
Afficher plus [+] Moins [-]Water for food and ecosystems
2003
Koopmanschap, E. | Vehmeyer, P.W. | Snellen, B.
More food with less water Texte intégral
2003
Technical Centre for Agricultural and Rural Cooperation
Deficit irrigation practices Water Reports No 22, FAO, 2002. 110 pp. ISBN 9251047685 US$ 17 Euro 15.75
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