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Carving Out Policy Space for Sustainability in Biofuel Production AgEcon
Marshall, Elizabeth P..
Biofuels such as ethanol and biodiesel are increasingly promoted as green alternatives to petroleum-derived transport fuels. Scaling up feedstock production to produce enough biofuel to displace a significant portion of current petroleum demand will put pressure on land and water resources both domestically and internationally, however, and could potentially be accompanied by unacceptable changes in landscape-level land use patterns and provisioning of ecosystem services. Ensuring that feedstock production is sustainable and that biofuels provide the social and environmental benefits that are often attributed to them will require a carefully designed portfolio of agricultural, forestry, energy, and trade policies related to biofuels and feedstock...
Tipo: Journal Article Palavras-chave: Biofuels; Sustainability; Land use; Greenhouse gas accounting; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/44696
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Land-Use Credits to Corn Ethanol: Accounting for Distillers Dried Grains with Solubles as a Feed Substitute in Swine Rations AgEcon
Fabiosa, Jacinto F..
Many studies on the impact of biofuels on greenhouse gas emissions do not consider indirect land-use change and land use avoided because of co-products utilization. This paper provides estimates of the land-use credit for corn ethanol when its by-product—distillers dried grains with solubles (DDGS)—is used in swine feed rations to substitute for corn and soymeal. The range of estimates used here covers the land-use credit used in the literature. Moreover, this study departs from earlier studies because feed rations from a least-cost optimization are used rather than rations from feeding trials, and DDGS nutrient profile variability is fully accounted for. As a result, displacement rates and the land-use credit can be better characterized using a...
Tipo: Working or Discussion Paper Palavras-chave: Biofuel; DDGS quality; Displacement rate; Greenhouse gas accounting; Land-use credit; Optimal; Stochastic LP; Swine grower-finisher optimal feed ration.; Agricultural and Food Policy.
Ano: 2009 URL: http://purl.umn.edu/48854
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