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  • Title: [Analysis on the role and endowment of virtual water in agricultural ecosystem].
    Author: Liu W, Dong R, Deng H.
    Journal: Ying Yong Sheng Tai Xue Bao; 2005 Nov; 16(11):2108-11. PubMed ID: 16471348.
    Abstract:
    Water is one of the most important components of agricultural ecosystem, and also a source of food security, which plays an essential role in ensuring sustainable food resources for a growing population. In this study, the policy relevancy of virtual water was addressed, with food production, alternative trend of import, and product condition analyzed. The results showed that an average of 10.2 x 10(9) m3 water and 27.7 x 10(6) hm2 land was transferred by imported wheat, while an average of 0.3 x 10(9) m3 water and 1.6 x 10(6) hm2 land was transferred by imported maize. The sum of virtual water equivalent was 10.5 x 10(9) m3. It's of significance to alleviate the pressure of water stress in agriculture and arable land, help to resolve water predication of food production by food imports, and compensate water endowment.
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