Fecha/hora: 16/06/2024 04:18:25

Biblioteca(s): 	INIA Las Brujas.	
Fecha corriente: 	31/07/2017	
Fecha de la última actualización: 	23/10/2019	
Autoria: 	ADLER, P.; SPATARI, S.; D´OTTONE, F.; VÁZQUEZ, D.; PETERSON, L.; DEL GROSSO, S. J.; BAETHGEN, W.; PARTON, W. J.	
Afiliación: 	PAUL ADLER, Pasture Systems and Watershed Management Research Unit, United States Department of Agriculture, Agricultural Research Service (USDA-ARS), University Park, PA, USA; SABRINA SPATARI, Department of Civil, Architectural and Environmental Engineering, Drexel University, Philadelphia, PA, USA; FEDERICO AGUSTIN D´OTTONE DI LORENZO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL VÁZQUEZ PEYRONEL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LISA PETERSON, Department of Civil, Architectural and Environmental Engineering, Drexel University, Philadelphia, PA, USA; STEPHEN J. DEL GROSSO, Soil Plant Nutrient Research Unit, USDA-ARS, Fort Collins, CO, USA; WALTER E. BAETHGEN, IRI, The Earth Institute at Columbia University, Palisades, NY, USA; WILLIAM J. PARTON, Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO, USA.	
Título: 	Legacy effects of individual crops affect N2O emissions accounting within crop rotations.	
Año de publicación: 	2017	
Fuente/Imprenta: 	Global Change Biology Bioenergy, 2017. OPEN ACCESS	
DOI: 	10.1111/gcbb.12462	
Idioma: 	Inglés	
Notas: 	Article history: Version of record online: 8 July 2017 // Accepted manuscript online: 5 June 2017 // Manuscript Accepted: 18 May 2017 // Manuscript Received: 6 February 2017. 
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.	
Contenido: 	ABSTRACT.

Uruguay is pursuing renewable energy production pathways using feedstocks from its agricultural sector to supply transportation fuels, among them ethanol produced from commercial technologies that use sweet and grain sorghum. However, the environmental performance of the fuel is not known. We investigate the life cycle environmental and cost performance of these two major agricultural crops used to produce ethanol that have begun commercial production and are poised to grow to meet national energy targets for replacing gasoline.
Using both attributional and consequential life cycle assessment (LCA) frameworks for system boundaries to quantify the carbon intensity, and engineering cost analysis to estimate the unit production cost of ethanol from grain and sweet sorghum, we determined abatement costs. We found 1) an accounting error in estimating N2O emissions for a specific crop in multiple crop rotations when using Intergovernmental Panel on Climate Change (IPCC) Tier 1 methods within an attributional LCA framework, due to N legacy effects; 2) choice of baseline and
crop identity in multiple crop rotations evaluated within the consequential LCA framework both affect the global warming intensity (GWI) of ethanol; and 3) although abatement costs for ethanol from grain sorghum are positive and from sweet sorghum they are negative, both grain and sweet sorghum pathways have a high potential for reducing transport fuel GWI by more than 50% relative to gasoline, and are within the ranges targeted by the US renewable transportation fuel policies.

© 2017 The Authors. Global Change Biology Bioenergy published by John Wiley & Sons Ltd.	
Palabras-Clave: 	ATTRIBUTINAL LCA; BIOENERGY; CONSEQUENTIAL LCA; ETHANOL; GRAIN SORGHUM; GREENHOUSE GAS EMISSIONS ACCOUNTING; LIFE CYCLE.	
Categoría del tema: 	--	
URL: 	http://onlinelibrary.wiley.com/doi/10.1111/gcbb.12462/epdf
http://www.ainfo.inia.uy/digital/bitstream/item/12166/1/GCB-Bionergy-2017-D.Vazquez.pdf	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (101438-1) - PXI - AP - DD - PP/GCB BIOENERGY/2017 -  -  - DIS