气候变化领域集成服务门户(CCPortal): Land clearing and the biofuel carbon debt

CCPortal

DOI	10.1126/science.1152747
	Land clearing and the biofuel carbon debt
	Fargione J.; Hill J.; Tilman D.; Polasky S.; Hawthorne P.
发表日期	2008
ISSN	0036-8075
起始页码	1235
结束页码	1238
卷号	319 期号:5867
英文摘要	Increasing energy use, climate change, and carbon dioxide (CO2) emissions from fossil fuels make switching to low-carbon fuels a high priority. Biofuels are a potential low-carbon energy source, but whether biofuels offer carbon savings depends on how they are produced. Converting rainforests, peatlands, savannas, or grasslands to produce food crop-based biofuels in Brazil, Southeast Asia, and the United States creates a "biofuel carbon debt" by releasing 17 to 420 times more CO2 than the annual greenhouse gas (GHG) reductions that these biofuels would provide by displacing fossil fuels. In contrast, biofuels made from waste biomass or from biomass grown on degraded and abandoned agricultural lands planted with perennials incur little or no carbon debt and can offer immediate and sustained GHG advantages.
英文关键词	biofuel; carbon dioxide; fossil fuel; agricultural land; biofuel; biomass; carbon; carbon dioxide; climate change; emission; energy use; fossil fuel; greenhouse gas; article; biofuel production; Brazil; climate change; energy resource; greenhouse gas; peatland; priority journal; rain forest; savanna; Southeast Asia; United States; Biomass; Brazil; Carbon; Carbon Dioxide; Crops, Agricultural; Ecosystem; Energy-Generating Resources; Greenhouse Effect; Indonesia; Malaysia; Plants; Soil; Time Factors; United States; Asia; Brazil; Eurasia; North America; South America; Southeast Asia; United States
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243666
作者单位	Nature Conservancy, 1101 West River Parkway, Minneapolis, MN 55415, United States; Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN 55108, United States; Department of Applied Economics, University of Minnesota, St. Paul, MN 55108, United States
推荐引用方式 GB/T 7714	Fargione J.,Hill J.,Tilman D.,et al. Land clearing and the biofuel carbon debt[J],2008,319(5867).
APA	Fargione J.,Hill J.,Tilman D.,Polasky S.,&Hawthorne P..(2008).Land clearing and the biofuel carbon debt.Science,319(5867).
MLA	Fargione J.,et al."Land clearing and the biofuel carbon debt".Science 319.5867(2008).