Fecha/hora: 15/06/2024 21:50:18

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 20/03/2024
Fecha de la última actualización: | 20/03/2024
Autoria: | BUSTAMANTE-SILVEIRA, M.; SIRI-PRIETO, G.; MAZZILLI, S.; CARRASCO-LETELIER, L.
Afiliación: | BUSTAMANTE-SILVEIRA, M, Estación Experimental Mario Cassinoni (EEMAC), Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; GUILLERMO SIRI-PRIETO, Estación Experimental Mario Cassinoni (EEMAC), Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; SEBASTIÁN R. MAZZILLI, Estación Experimental Mario Cassinoni (EEMAC), Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; LEONIDAS CARRASCO-LETELIER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Carbon footprint of four bioethanol cropping systems in a temperate region. (Research Article).
Año de publicación: | 2024
Fuente/Imprenta: | Biofuels. 2024. https://doi.org/10.1080/17597269.2024.2327154
DOI: | 10.1080/17597269.2024.2327154
Idioma: | Inglés

Notas:

Article history: Received 05 November 2023, Accepted 01 March 2024, Published online 18 March 2024. -- Correspondence: 
Leonidas Carrasco-Letelier, Email: lcarrasco@inia.org.uy , Natural Resources, Production and Environment, Experimental Station INIA La Estanzuela
Alberto Boerger, Route 50 km 11, 70000, Colonia, Uruguay. -- Funding: This work was supported by Universidad de la Rep&#65533;ublica, Uruguay.

Contenido: | ABSTRACT.- Under the EU Renewable Energy Directive (2009/28/EC), estimating biofuel GHG emissions is essential to gauge emissions reductions compared to fossil fuels. Within this framework, the carbon footprint (CF) was calculated for four bioethanol cropping systems: a maize-wheat-sorghum rotation without the harvest of crop residues (MWS), a maize-wheat-sorghum rotation with harvested crop residues (MWS-R), switchgrass (Sw), and continuous sweet sorghum (Ss). The estimation followed a life-cycle analysis strategy. The CF varied between 0.04 and 3.68 kg CO2-eq l -1 ethanol. Switchgrass had the smallest CF and the highest ethanol yield per hectare (4,263 L [ha yr] -1). However, for annual systems, Ss had the highest CF (3.68 kg CO2-eq l -1 ethanol), 2 and 4 times larger than MWS-R and MWS systems. The soil preparation, planting, and post-planting emissions were 80% of the mean emissions in the annual cropping systems. By comparison, 60% of Sw's CF came from post-planting, and 46% from fertilizers. In Sw, soil erosion accounted for 11% of the soil organic carbon lost in the MWS-R and Ss systems. In addition, Sw was the system with the most significant carbon sequestration (-1,957 kg CO2-eq [ha yr - 1]), a value corresponding to 94% of the CF of this bioethanol cropping system. @ 2024 Informa UK Limited, trading as Taylor & Francis Group
Palabras-Clave: | ÁREA DE RECURSOS NATURALES, PRODUCCIÓN Y AMBIENTE - INIA; Biofuel; Greenhouse gas emissions; Life cycle assessment; SOC; Soil erosion.
Categoría del tema: | P01 Conservación de la naturaleza y recursos de La tierra
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (103854-1) - PXI - AP - DD - Biofuels/2024 -  -  - DIS