6U.S. Department of Agriculture[DB/OL]. http://www.usda.gov/wps/portal/usdahome.
7KEITH C.The role of Recent Developments with a Focus on Feed Grain Markets and Market Prospects: A Review of Recent Development with a Focus on Feed Grain Markets and Market Prospects [R]. Supporting material for a review conducted by Kraft Foods Global, Inc. of the current situation in farm and food markets, june 19,2008.
8Food and Agriculture Organization of the United Nations[DB/OL].www. faostat, fao.org/defauh.aspx.
9中国财经报道.粮食战争[M].北京:机械工业出版社,2008.
10VON Braun Joachim.Rising Food Prices:What Should Be Done?[R]. Washington: IFPRI, IFPRI Policy Brief, April.2008.
7Bura R, Ewanick S, Gustafson R.2012.Assessment of Arundo donax(giant reed)as feedstock for conversion to ethanol [J] . Tappi Journal, 11 (4):59-66.
8Collins, Keith.2008.The role of biofuels and other factors in increasing farm and food prices:a review of recent development with a focus on feed grain markets and market prospects M] .Donald Mitchell.A Note on Rising Food Prices.Working Paper:4.
9Daniel G D, Walsh M E, Shapouri H, et al.2003,The econ omie impacts of bioenergy crop production on U.S.agricuhure [R] .USDA, Agricultural Economic Report No.816.de S aS A, Palmer C, Engel S.2012.Ethanol production, food and forests [J] .Environmental and Resource Economics, 51(1): 1-21.
10Gouveia L, Oliveira A C.2009.Microalgae as a raw material for biofuels production [J] .Journal of industrial microbiology & biotechnology,36 (2): 269-274.