关键词：生物质能；能源利用；农业；化工
摘 要：Over the past two years, the federal government has released several reports highlighting the importance of biomass as a potential source of economic growth and energy independence. In January 2011, for example, the Congressional Research Service issued a report titled Agriculture-Based Biofuels: Overview and Emerging Issues that reviewed the evolution of the U.S. biofuels sector and the role that federal policy has played in shaping its development. In August, 2011, the Department of Energy (DOE) released 2011 U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry, which detailed U.S. biomass feedstock potential nationwide. The report examined the nation's capacity to produce a billion dry tons of biomass resources annually for energy uses without impacting other vital U.S. farm and forest products, such as food, feed, and fiber crops. Then in April 2012, the White House Office of Science and Technology Policy issued the National Bioeconomy Blueprint, a large portion of which described the importance of biomass as a source of energy and chemicals for manufacturing.