本文从资源禀赋、资源优化配置、经济价值以及自然属性等角度对粮食虚拟水流动格局的驱动成因进行探讨,利用改进的数据包络分析法对中国各地区农业资源利用相对效率测算的,结果表明,中国农业资源利用效率具有很大的提高潜力。对“虚拟水战略”在我国实施的适用性进行分析,针对以上结果提出了保障国家粮食安全与水安全方面的相关建议。
This paper discusses the real causes of the virtual water flow pattern with different angles : the endowment and optimizing allocation of resources, economic value, natural attributes and consumption structure. The relative efficiency of agricultural resources utilization has been measured in 2000 and 2007 in different regions of China by the revised data envelopment analysis model ( DEA), which shows that the efficiency has great potential to improve and the economic growth of China will not be a threat to food security in itself and the world. Then,we analyze the applicability of "virtual water strategy". Some suggestions about the security of national food and water resource are presented simultaneously.