虚拟水是解决水资源短缺和粮食安全问题的新途径，是目前国际新兴的研究热点。文中系统地阐述了虚拟水的概念和内涵，归纳总结了关于产品的虚拟水含量的计算方法，包括基于不同产品类型区别计算的方法和产品生产树的方法。并且介绍了虚拟水的应用情况，还对今后的研究方向进行了探讨。%Virtual water, a new research topic, is considered as an innovative solution to solve the problem of water scarcity and food security. This study expounded the concept and connotation of virtual water, and also summarized the methodologies to calculate virtual water, in terms of the methods based on distinguishing calculation of different product and the methods of production tree. Furthermore, the application of virtual water, as well as its further study directions was introduced.
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