Study On Non-Grain Bio-Energycrop Selection And Land Demand

In this century, with the growing oil consumption, the oil reserves are decreasing and international oil prices remain high, development of bio-energy is an inevitable choice for China's energy development. Bio-energy development and agriculture are closely linked, Therefore, the non-grain-based fuel ethanol feedstock is the inevitable trend in the development process and the only way for the development of China's biomass energy. In order to solve the overproduction of food and to ease energy pressures, China's Chen Hualiang had been used to produce fuel ethanol from the late 20th century. But as energy prices rise, around the corn fuel ethanol project put into operation one after another, Chen Hualiang been widely consumed and the food prices rising, the state encourages the use of non-food raw materials to produce fuel ethanol for food security considerations. Biomass energy development leads to new demands on crops will lead to the formation of new demands for land, China's fuel ethanol development from grain crops to non-grain crops into this by the conversion of food crops to non-grain crops, at least in a certain period of time will lead to adjustment of the pressure faced by the existing structure. So whether cultivation of non-grain raw materials of fuel ethanol in the main production areas have advantages or not compared to alternative crops? Feasible alternative? From conversion of grain to non-grain can be achieved, as well as the demand for land to?On the foundation of analysis about non-grain fuel ethanol development potential of raw materials and the transformation mechanism and benefit. This paper analyze whether cultivation of non-grain raw materials of fuel ethanol have advantages or not compared to alternative crops use cost-benefit analysis.A variety of biomass sources of raw materials into fuel ethanol conversion parameters determined, and estimating the parameters of the different needs of the area of land. Measured the pressure exerted on the land in order to meet a certain size of fuel ethanol demand. Comparing the difference of raw material costs which using non-grain fuel ethanol feedstock to produce ethanol. Based on the analysis in the above, analyze whether the adjustment of non-grain crops can be achieved. The results show that:generally speaking, raw sugar and cassava have an advantage when compared with alternative crops, but, sugarcane compared to alternative crops have no obvious advantage in Guangdong Province,and planted sweet potatoes in terms of relative to alternative crops is not cost-effective. Sugar beet and root crops relatively low cost of raw materials, sugar cane and sweet sorghum is relatively high cost of raw materials, including sweet sorghum highest cost of raw materials. Sugar raw material demand for land less for a certain scale of production of fuel ethanol, The demand for land from small to large are as follows:sugar beet, sugar cane, sweet sorghum, cassava and sweet potatoes.Finally, according with the above analysis results and China's actual situation, this paper put forward relevant policy recommendations:pay attention to cassava as a feedstock fuel ethanol development potential; The government should strengthen financial support for the non-grain fuel ethanol development; Changes the sugar production process to make the fuel ethanol.