%A %T Subdivision of Blue Water and Green Water in the Virtual Water Strategy %0 Journal Article %D 2010 %J Science & Technology Review %R %P 47-54 %V 28 %N 04 %U {http://www.kjdb.org/CN/abstract/article_2131.shtml} %8 2010-02-28 %X As an important basis for the rational allocation of regional water resources in wider fields, it is necessary to subdivide virtual water resources into blue water and green water, and evaluate the water resource amounts saved through the virtual water strategy that can be made available for other industries except agriculture and stockbreeding. This paper evaluates the blue water resource and the green water resource in the virtual water strategy in Beijing, according to the subdivision model of blue water and green water. The results show that within the virtual water resources consumed by main crops, in cases of taking into consideration of soil water storage and not taking into consideration of soil water storage, the blue water resources consumed by main grains in Beijing are 6.21×108m3 and 6.29×108m3 in 2007, respectively, both more than the green water resources consumed by main grains at the same time. The virtual water import and the blue water import through grain trade are increased significantly since 1999, and the highest amount of the blue water import is 38.80×108m3, and the proportion of the blue water import through food trade in the corresponding real water resource is higher than 50% in Beijing from 2001 to 2007, which indicates that the virtual water strategy has played an important part in solving the problem of water scarcity in Beijing during the past several years, and the subdivision of the blue water and the green water in the virtual water strategy can provide some helpful insight for the rational allocation of regional water resources in wider fields.