Based on the scarcity of water resources and virtual vater theory in Hebei,the regional trade and the consequent export trade of virtnal water outflow of major food products were investigated and analyzed.The result showed that the avarage total annual output of the virtual water was 2.078 billion m3,the average cropirrigation water was 20.248 billion m3,average coropirrigation water is 20.248 billion m3,accounting for 10.26% of water consumption of food crops from 2000 to 2005.A ccordingly,the virtual wate...