Virtual Water, New Approach to Water Crisis

The water crisis is rapidly expanding in vast areas of the world. Our country due to be located in dry belt of the earth, the rainfall is less than the global average, the disproportionate distribution of temporal and spatial of rainfall, population growth and per capita demand for water, as well as the consumption of inappropriate water resources is no exception for this reason. According to studies, more than 90% of the country's water is used by the agriculture. A review of water resources management and management approaches, especially in the agriculture, could prevent significant losses of water resources. Water used in different stages of production or an agricultural product called the virtual water that flows through the trade (import and export) of the agricultural product, both nationally and internationally, as a stream of virtual water trade. As the importing country imports virtual water in addition to the food product. Countries like Iran, which are located in arid and semi-arid areas with a dehydration problem, can save water on their water by importing water, or use their own water resources in other areas.