In regions, which suffer from water shortage or potential water shortage like the Middle East, water policies and different mitigation measures are formulated. With the increasing population and increasing demand for food and drinking water with the fixed supply of water, the demand management policies have been introduced. Virtual Water has been adopted as an alternative or potential alternative water resource. In the application of the Integrated Water Resources Management (IWRM), virtual water has to be considered as a resource of water. In this paper, the practical value of the virtual water concept as well as the possibility of the application of the concept in the regional and national level are discussed. The paper emphasizes on the application of virtual water in agriculture products and virtual water trade of these products. This research concluded that, there is a possibility for the application of the virtual water concept on the national level taking into account water endowments, and other natural and social economic conditions. The virtual water strategy seeks ways to consciously and efficiently utilize the internal and external water resources to alleviate water scarcity. This, however, by no means implies that importing food is the only response the water scarce countries and regions should and can take. Other measures concerning the supply and demand sides of water management are imperative. The argument here is that the virtual water strategy should be an integral component in the whole package of integrated water resources management.
E. Velazquez, Water trade in Andalusia. Virtual water: An alternative way to manage water use, Ecol. Econ., vol. 63, 2007, pp. 201-208.
A. El-Sadek, Virtual water trade as a solution for water scarcity in Egypt. Water Resources Management, vol. 24 (11), 2010a, pp. 2437-2448.
F. Rijsberman, Water scarcity: Fact or fiction?, Agric. Water Manage., vol. 80, 2006, pp. 5–22.
A. Y. Hoekstra, Virtual water: An introduction. In: Proceedings of the International Expert Meeting on Virtual Water Trade. Value of Water Research Report Series No. 12, 2003, IHE, Delft, the Netherlands.
L., Horlemann and S. Neubert, Virtual water trade: A realistic concept for resolving the water crisis?, Rep. 25, German Dev. Inst., Bonn, Germany, 2006.
M. J. Haddadin, Exogenous water: A conduit to globalization of water resources. Proceedings of the international expert meeting on virtual water trade. Value of Water, 2003, Research Report Series No. 12.
J. A. Allan, Fortunately there are substitutes for water otherwise our hydro-political futures would be impossible. In: ODA, Priorities for water resources allocation and management, ODA, London, 1993, pp. 13-26.
J. A. Allan, Overall perspectives on countries and regions. In: Rogers, P. and Lydon, P. Water in the Arab World: perspectives and prognoses, Harvard University Press, Cambridge, Massachusetts, 1994, pp. 65-100.
A. Y. Hoekstra and A. K. Chapagain, Water Footprints of Nations. Value of Water Research Report Series No. 16, 2004, UNESCO-IHE Institute for Water Education.
World Water Council, WWC, Virtual water trade - Conscious choices. E-Conference Synthesis., 2004, http:// www.worldwatercouncil.org/index.php.
D. Renault, Value of virtual water in food: Principles and virtues. In: Proceedings of the International Expert Meeting on Virtual Water Trade. Value of Water Research Report Series No. 12, 2003, IHE, Delft, the Netherlands.
J. A. Allan, Virtual water: a strategic resource. Global solutions to regional deficits. Groundwater, vol. 36(4), 1998, pp. 545-546.
J. A Allan, Virtual water eliminates water wars? A case study from the Middle East, in Virtual Water Trade: Proceedings of the International Expert Meeting on Virtual Water Trade, edited by A. Y. Hoekstra, 2003, pp. 137-145, UNESCO-IHE Inst. for Water Educ., Delft, Netherlands.
J. A. Allan, Virtual water: A long term solution for water short Middle Eastern economies? Paperpresented at the 1997 British Association Festival of Science, University of Leeds, 1997.
J. A. Allan, Water stress and global mitigation: water food and trade. Arid Lands Newsletter No. 45, 1999, http://ag.arizona.edu/OALS/ALN/aln45/allan.html.
J. A. Allan, The Middle East water question: Hydropolitics and the global economy. I.B. Tauris, London, 2001.
D. Wichelns, The role of virtual water in efforts to achieve food security and other national goals, with an example from Egypt. Agricultural Water Management, vol. 49, 2001, pp. 131-151.
A. Y. Hoekstra and P. Q. Hung, Virtual water trade: A quantification of virtual water flows between nations in relation to international crop trade, Value of Water Research Report Series No.11, 2002, IHE, Delft, the Netherlands.
A. Y. Hoekstra and P. Q. Hung, Virtual water trade: A quantification of virtual water flows between nations in relation to international crop trade. In: Proceedings of the International Expert Meeting on Virtual Water Trade. Value of Water Research Report Series No. 12, 2003, IHE, Delft, the Netherlands.
A., Earle and A. Turton, The virtual water trade amongst countries of the SADC, in Virtual Water Trade: Proceedings of the International Expert Meeting on Virtual Water Trade, edited by A. Y. Hoekstra, 2003, pp. 183-200, UNESCO-IHE Inst. for Water Educ., Delft, Netherlands.
M. Nakayama, Implications of virtual water concept on management of international water systems—Cases of two Asian international river basins, in Virtual Water Trade: Proceedings of the International Expert Meeting on Virtual Water Trade, edited by A. Y. Hoekstra, 2003, pp. 237-239, UNESCO-IHE Inst. for Water Educ., Delft, Netherlands.
M. Wackernagel, and W. Rees, Our ecological footprint: Reducing human impact on the Earth. New Society Publishers, Gabriola Island, BC, Canada, 1996.
M. Wackernagel, L. Onisto, A. C. Linares, I. S. L. Falfan, J. M. Garcia, I. S. Guerrero and M. G. S. Guerrero, Ecological footprints of nations: How much nature do they use? - How much nature do they have? Centre for Sustainability Studies, Universidad Anahuac de Xalapa, Mexico, 1997.
A. Y. Hoekstra and A. K. Chapagain, Water footprints of nations: Water use by people as a function of their consumption pattern, Water Resour. Manage., vol. 21(1), 2007, pp. 35-48.
H. Yang, L. Wang and A. J. B. Zehnder, Water scarcity and food trade in the southern and eastern Mediterranean countries, Food Policy, vol. 32, 2007, pp. 585-605.
D. Zimmer and D. Renault, Virtual water in food production and global trade: Review of methodological issues and preliminary results, in Virtual Water Trade Proceedings of the International Expert Meeting on Virtual Water Trade, edited by A. Y. Hoekstra, 2003, pp. 93-107, UNESCOIHE Inst. for Water Educ., Delft, Netherlands.
A. Y. Hoekstra and P. Q. Hung, Globalization of water resources, Global Environ. Change, vol. 15, 2005, pp. 45-56.
J. Warner, Virtual water – virtual benefits. In Hoekstra ed. (2003).
A. K. Chapagain, A. Y. Hoekstra, and H. H. G. Savenije, Water saving through international trade of agricultural products, Hydrol. Earth Syst. Sci., vol. 10, 2006, pp 455- 468.
H. Lofgren and A. Richards, Food Security, Poverty, and Economic Policy in the Middle East and North Africa. Trade and Macroeconomics Division, International Food Policy Research Institute, Washington, U.S.A. TMD Discussion Paperno. 111, 2003.
M. Hamouda and A. El-Sadek, Virtual water trade as a policy option for the Arab States. Arab Water Council Journal, vol. 1(1), 2007, pp.16-31.
M. A. Abu-Zeid, (1998). Water and sustainable development: the vision for world water, life and the environment. Water Policy, vol. 1(1), 1998, pp. 9-19.
ESCWA, The Optimization of Water Resource Management in the ESCWA countries: A Survey of Measures Taken by the ESCWA Countries during the 1990s for the Optimization of Water Resource Management and Capacity-Building in the Water Sector, 2004. E/ESCWA/ SDPD/2003/11.
A. Y. Hoekstra, Appreciation of water: four perspectives. Water Policy, vol. 1, 1998, pp. 605-622.
A. El-Sadek, Water desalination: An imperative measure for water security in Egypt. Desalination, vol. 250 (3), 2010b, pp. 876-884.