خيارات البحث
النتائج 231 - 240 من 5,572
Reflections on food security under water scarcity النص الكامل
2011
Fereres Castiel, Elías | Orgaz Rosua, Francisco | González-Dugo, Victoria
Forecasts on population growth and economic development indicate that there will be substantial increases in food demand for the forthcoming decades. We focus here on the water requirements of food production, on the issue of whether there would be enough water to produce sufficient food in the future, and we offer options to face this challenge based on recent trends observed in some agricultural systems. Given the competition for water faced by the agricultural sector, and the uncertainties associated with climate change, improving the efficiency of water use in both rain-fed and irrigated systems is the main avenue to face the challenge. In rain-fed agriculture, managing the risk associated with rainfall variability is a promising option to increase productivity. In irrigated systems, a case study on the improvements in water productivity in Andalusia, Spain, is used to illustrate some of the opportunities to make progress. Progress in reducing irrigation water use in recent decades has been substantial, but decreasing the consumptive use of crops is a much more difficult challenge. The need for more research and technology transfer on improving water-limited crop production is highlighted, and emphasis is placed on interdisciplinary approaches to gain the insight needed to achieve new breakthroughs that would help in tackling this complex problem. © 2011 The Author. | The support of a Consolider-Rideco grant CSD2006-0067 from the Ministry of Education and Science of Spain is gratefully acknowledged. | Peer Reviewed
اظهر المزيد [+] اقل [-]Water and food security under global change النص الكامل
2010
Ringler, Claudia | Bryan, Elizabeth | Biswas, Asit K. | Cline, Sarah A.
Vietnam-Netherlands partnership "water for food & ecosystems"
2009
Long, K.T. | Halsema, van, G.E. | Brunner, J.
Food and water security under global change النص الكامل
2008
This Brief considers the impacts of global change (in terms of climate, demography, technology, and so on), on agriculture and natural resources in developing countries, with a focus on Africa.
اظهر المزيد [+] اقل [-]Water, food and environment: a development dilemma
2006
Rijsberman, Frank | Molden, David J.
Pesticide residues in food and drinking water
2004
Hamilton, Denis | Crossley, Stephen
Water, food and environment: conflict or dialogue?
2003
Rijsberman, Frank | Mohammed, A.
Dialogue on water, food and environment: Proposal النص الكامل
2001
IWMI
Dialogue on water, food and environment: Proposal
2001
International Water Management Institute
Water and food security: perspectives from Bangladesh
1999
Datta, A.
