ch. 1. Soil processes and residue harvest management / Jane M.F. Johnson ... [et al.] -- ch. 2. Soil quality impacts of residue removal for biofuel feedstock / Richard M. Cruse, M.J. Cruse, and D.C. Reicosky -- ch. 3. Ecological consequences of biofuels / W.E.H. Blum ... [et al.] -- ch. 4. Land use in production of raw materials for biofuels / Leidivan Almeida Fraz ̥... [et al.] -- ch. 5. Corn and cellulosic ethanol problems and soil erosion / D. Pimentel -- ch. 6. Ethanol production from sugarcane and soil quality / M.V. Galdos ... [et al.] -- ch. 7. Economic balance : competition between food production and biofuels expansion / Jozsef Popp -- ch. 8. Opportunities and challenges of biofuel production / Rattan Lal.