Study on regional energy balance of biofuel in China

中国是第三大生物燃料生产国，生物燃料被设定为中国可再生能源政策推广的一个非常重要的因素。然而，有人担心，生物燃料的推广将导致与粮食竞争等几个问题。本研究以省级为单位，评估了利用农业剩余物（稻草和小麦秸秆）生产生物乙醇的潜力与能源需求之间的差距。结果表明，在农村地区，如安徽省，生物燃料的生产潜力将大于汽油需求。此外，研究还探讨了相关政策，如为避免黄河流域生物燃料推广造成的水资源短缺而进行的水权交易政策。

China is the third largest biofuel producer, and biofuel is set as a very important factor for the promotion of renewable energy policy in China. However, there are concerns that the promotion of biofuel will cause several problems such as competition with food. This study evaluated the gap between the potential production of bio-ethanol made from agricultural residuals (rice straw and wheat straw) and the energy demand at a provincial level. The results show that the potential production of biofuel will be larger than gasoline demand in the rural area, such as in Anhui Province. Moreover, the study examined the policy, like the one regarding the water right trading to avoid water shortage caused by the promotion of biofuel in the Yellow River Basin.