بخشی از مقاله انگلیسی: ۱٫ Introduction. Water is a scarce resource. Forty percent of the world’s populationtoday face shortages regardless of whether they live indry areas or in areas where rainfall is abundant (CA, 2007).The largest consumer of freshwater resources is the agriculturalsector —globally around 70% of all freshwater withdrawals areused for food production.
