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Water and food security
2014
Chartres, Colin J.
Water-food-energy nexus Texto completo
2014
Bird, Jeremy | Dodds, F. | McCornick, Peter | Shah, Tushaar
Water-food-energy nexus
2014
Bird, Jeremy | Dodds, F. | McCornick, Peter G. | Shah, Tushaar
Water, investment and food security Texto completo
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
Mostrar más [+] Menos [-]Water resources and food security Texto completo
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 Texto completo
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)
Mostrar más [+] Menos [-]Water resources and food security Texto completo
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.
Mostrar más [+] Menos [-]Water resources and food program Texto completo
2014
Demin, A. P.
Data on the volumes of renewable water resources and the specific dependable water supply are given for countries with the least water resources available. Data on the current volumes of water resources withdrawal, irrigated land area, and the population size in largest world countries are given. Measures taken by various countries with the aim to enhance water resources availability for agriculture are described. The further increase in the area of arable and irrigated lands, with the current technologies still in use in the agriculture, is shown to be inadmissible. The role of reclamation in the ensuring of food safety in Russia is demonstrated.
Mostrar más [+] Menos [-]Water prices, environment, and food security Texto completo
2014
xueliang cai | mark w. rosegrant
Mark W. Rosegrant, Xueliang Cai, 'Water prices, environment, and food security', 2014
Mostrar más [+] Menos [-]Troubled water, water troubles: overcoming an important constraint to food security Texto completo
2014
frank rijsberman
Frank Rijsberman, 'Troubled water, water troubles: overcoming an important constraint to food security', 2014
Mostrar más [+] Menos [-]Water, food and environment: conflict or dialogue? Texto completo
2014
frank rijsberman | a. mohammed
Frank Rijsberman, A. Mohammed, 'Water, food and environment: conflict or dialogue?', 2014
Mostrar más [+] Menos [-]Water for food security for the poor Texto completo
2014
regassa e. namara | intizar hussain | madar samad
Intizar Hussain, Regassa E. Namara, Madar Samad, 'Water for food security for the poor', 2014
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