Abstract:

Following with the increasingly outstanding imbalance between supply and demand of global energy, great expectation has being placed on all kinds of new energy, one of which is bioenergy. Development of bioenergy is beneficial to ensuring energy security, cultivating new points of economic growth and promoting rural living standard. But then, unreasonable exploitation of bioenergy resources might threaten corn food security and lead to unfavorable influence on ecological environment. In this paper, systematic evaluation was made on global bioenergy resources, and drew the conclusion that the current bioenergy development model which has to take corns as its raw material are unsustainable, and cellulosic ethanol technology, the 2nd biofuel technology, which is free from corns should be encouraged.