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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
21/06/2023 |
Actualizado : |
21/06/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
BUSTAMANTE-SILVEIRA, M.; SIRI-PRIETO, G.; MAZZILLI, R.; CARRASCO-LETELIER, L. |
Afiliación : |
MAURICIO BUSTAMANTE-SILVEIRA, Estación Experimental Mario Cassinoni (EEMAC), Facultad de Agronomía, Universidad de la República, Ruta 3 Km 363, Paysandú, Uruguay; GUILLERMO SIRI?PRIETO, Estación Experimental Mario Cassinoni (EEMAC), Facultad de Agronomía, Universidad de la República, Ruta 3 Km 363, Paysandú, Uruguay; SEBASTIÁN R. MAZZILLI, Estación Experimental Mario Cassinoni (EEMAC), Facultad de Agronomía, Universidad de la República, Ruta 3 Km 363, Paysandú, Uruguay; LEONIDAS CARRASCO-LETELIER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Carbon footprint of four bioethanol cropping systems in a temperate region. [preprint article]. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Available at SSRN: https://ssrn.com/abstract=4484823 or http://dx.doi.org/10.2139/ssrn.4484823 |
Páginas : |
46 p. |
DOI : |
10.2139/ssrn.4484823 |
Idioma : |
Inglés |
Notas : |
Article history: Posted 19 Jun 2023. -- This preprint research paper has not been peer reviewed. Electronic copy available at: https://ssrn.com/abstract=4484823. Preprint submitted to Renewable and Sustainable Energy Reviews, May 20, 2023. -- Corresponding author: Mauricio Bustamante-Silveira, mauriciobs_22@hotmail.com . -- |
Contenido : |
ABSTRACT.- The production of ethanol from biomass pursuant to the EU Renewable Energy Directive (2009/28/EC) requires an estimation of the levels of greenhouse gas (GHG) emissions from biofuels to assess the emissions savings in comparison to fossil fuels. Within this framework, the carbon footprint was estimated 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, considering the relevant inputs and processes for the emission of GHG from the crop management phases of soil preparation, planting, post-planting operations, harvesting, and transport. The carbon footprint varied between 0.04 and 3.68 kgCO2-eqL-1ethanol. Switchgrass had the smallest footprint and the highest ethanol yield per hectare (4,263 L [ha yr]-1). However, for annual systems, Ss had the highest emissions (3.68 kg CO2-eq L ethanol-1), 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, in Sw, 60% of the total GHG emissions came from post-planting and 46% from fertilizers. In Sw, soil erosion by water accounted for 35% 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 that corresponded to 94% of the overall emissions of this bioethanol cropping system. MenosABSTRACT.- The production of ethanol from biomass pursuant to the EU Renewable Energy Directive (2009/28/EC) requires an estimation of the levels of greenhouse gas (GHG) emissions from biofuels to assess the emissions savings in comparison to fossil fuels. Within this framework, the carbon footprint was estimated 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, considering the relevant inputs and processes for the emission of GHG from the crop management phases of soil preparation, planting, post-planting operations, harvesting, and transport. The carbon footprint varied between 0.04 and 3.68 kgCO2-eqL-1ethanol. Switchgrass had the smallest footprint and the highest ethanol yield per hectare (4,263 L [ha yr]-1). However, for annual systems, Ss had the highest emissions (3.68 kg CO2-eq L ethanol-1), 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, in Sw, 60% of the total GHG emissions came from post-planting and 46% from fertilizers. In Sw, soil erosion by water accounted for 35% of the soil organic carbon lost in the MWS-R and Ss systems. In addition, Sw was the system with the most significant carbon ... Presentar Todo |
Palabras claves : |
Biofuel; Greenhouse Gas Emissions; Life Cycle Assessment; SOC; Soil erosion. |
Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
URL : |
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4484823
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Marc : |
LEADER 02738naa a2200253 a 4500 001 1064206 005 2023-06-21 008 2023 bl uuuu u00u1 u #d 024 7 $a10.2139/ssrn.4484823$2DOI 100 1 $aBUSTAMANTE-SILVEIRA, M. 245 $aCarbon footprint of four bioethanol cropping systems in a temperate region. [preprint article].$h[electronic resource] 260 $c2023 300 $a46 p. 500 $aArticle history: Posted 19 Jun 2023. -- This preprint research paper has not been peer reviewed. Electronic copy available at: https://ssrn.com/abstract=4484823. Preprint submitted to Renewable and Sustainable Energy Reviews, May 20, 2023. -- Corresponding author: Mauricio Bustamante-Silveira, mauriciobs_22@hotmail.com . -- 520 $aABSTRACT.- The production of ethanol from biomass pursuant to the EU Renewable Energy Directive (2009/28/EC) requires an estimation of the levels of greenhouse gas (GHG) emissions from biofuels to assess the emissions savings in comparison to fossil fuels. Within this framework, the carbon footprint was estimated 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, considering the relevant inputs and processes for the emission of GHG from the crop management phases of soil preparation, planting, post-planting operations, harvesting, and transport. The carbon footprint varied between 0.04 and 3.68 kgCO2-eqL-1ethanol. Switchgrass had the smallest footprint and the highest ethanol yield per hectare (4,263 L [ha yr]-1). However, for annual systems, Ss had the highest emissions (3.68 kg CO2-eq L ethanol-1), 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, in Sw, 60% of the total GHG emissions came from post-planting and 46% from fertilizers. In Sw, soil erosion by water accounted for 35% 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 that corresponded to 94% of the overall emissions of this bioethanol cropping system. 653 $aBiofuel 653 $aGreenhouse Gas Emissions 653 $aLife Cycle Assessment 653 $aSOC 653 $aSoil erosion 700 1 $aSIRI-PRIETO, G. 700 1 $aMAZZILLI, R. 700 1 $aCARRASCO-LETELIER, L. 773 $tAvailable at SSRN: https://ssrn.com/abstract=4484823 or http://dx.doi.org/10.2139/ssrn.4484823
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
15/03/2023 |
Actualizado : |
27/04/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
KRUK, C.; SEGURA, A.; PIÑEIRO, G.; BALDASSINI, P.; PÉREZ-BECOÑA, L.; GARCÍA-RODRÍGUEZ, F.; PERERA, G.; PICCINI, C. |
Afiliación : |
CARLA KRUK, Instituto de Ecología y Ciencias Ambientales, Facultad Ciencias, Udelar, Uruguay; Media CURE, Udelar, Uruguay; Lab. de Ecología Microbiana Acuática, Dpto. Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, MEC, Montevideo, Uruguay; ANGEL SEGURA, Media CURE, Udelar, Uruguay; GERVASIO PIÑEIRO, LART-IFEVA, Facultad de Agronomía, Universidad de Buenos Aires, CONICET, Buenos Aires, Argentina; Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay; PABLO BALDASSINI, LART-IFEVA, Facultad de Agronomía, Universidad de Buenos Aires, CONICET, Buenos Aires, Argentina; INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LAURA PÉREZ-BECOÑA, Departamento de Geociencias, CURE-Rocha, Rocha, Uruguay; FELIPE GARCÍA-RODRÍGUEZ, Lab. Ecología Microbiana Acuática, Dpto. Microbiología, IIBCE, MEC, Mdeo, Uruguay; Dpto. Geociencias, CURE-Rocha, Rocha, Uruguay; Programa de Pós-graduação en Oceanologia, Inst. Oceanografia, Univ. Federal do Rio Grande (FURG), Rio Grande, Brazil; GONZALO PERERA, Media CURE, Udelar, Uruguay; CLAUDIA PICCINI, Lab. de Ecología Microbiana Acuática, Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), MEC, Montevideo, Uruguay. |
Título : |
Rise of toxic cyanobacterial blooms is promoted by agricultural intensification in the basin of a large subtropical river of South America. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Global Change Biology, 2023, volume 29, issue 7, pp. 1774-1790. doi: https://doi.org/10.1111/gcb.16587 |
ISSN : |
1354-1013 |
DOI : |
10.1111/gcb.16587 |
Idioma : |
Inglés |
Notas : |
Article history: Received 6 July 2022, Accepted 27 November 2022, First published online 06 January 2023. -- Corresponde author: Kruk, C.; Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Udelar, Uruguay; email:ckruk@yahoo.com -- FUNDING: This work is part of the project ?Modelización de los efectos del cambio y la variabilidad climática en la intensificación de las floraciones de cianobacterias tóxicas en el río Uruguay y Río de la Plata? financed by Research for Climate (2021)-National Innovation and Research Agency of Uruguay (ANII) (ICC_X_2021_1_171370) and the project ?Algoritmos automatizados para la predicción espacio-temporal de calidad de agua mediada por floraciones tóxicas en sistemas de relevancia para el agua potable y la recreación? financed by Inteligencia artificial para el manejo de crisis y la construcción de resiliencia (Uruguay, Argentina: ANII, IDRC, CONICET and FAPESP). |
Contenido : |
Toxic cyanobacterial blooms are globally increasing with negative effects on aquatic ecosystems, water use and human health. Blooms? main driving forces are eutrophication, dam construction, urban waste, replacement of natural vegetation with croplands and climate change and variability. The relative effects of each driver have not still been properly addressed, particularly in large river basins. Here, we performed a historical analysis of cyanobacterial abundance in a large and important ecosystem of South America (Uruguay river, ca 1900 km long, 365,000 km2 basin). We evaluated the interannual relationships between cyanobacterial abundance and land use change, river flow, urban sewage, temperature and precipitation from 1963 to the present. Our results indicated an exponential increase in cyanobacterial abundance during the last two decades, congruent with an increase in phosphorus concentration. A sharp shift in the cyanobacterial abundance rate of increase after the year 2000 was identified, resulting in abundance levels above public health alert since 2010. Path analyses showed a strong positive correlation between cyanobacteria and cropland area at the entire catchment level, while precipitation, temperature and water flow effects were negligible. Present results help to identify high nutrient input agricultural practices and nutrient enrichment as the main factors driving toxic bloom formation. These practices are already exerting severe effects on both aquatic ecosystems and human health and projections suggest these trends will be intensified in the future. To avoid further water degradation and health risk for future generations, a large-scale (transboundary) change in agricultural management towards agroecological practices will be required. © 2023 John Wiley & Sons Ltd. MenosToxic cyanobacterial blooms are globally increasing with negative effects on aquatic ecosystems, water use and human health. Blooms? main driving forces are eutrophication, dam construction, urban waste, replacement of natural vegetation with croplands and climate change and variability. The relative effects of each driver have not still been properly addressed, particularly in large river basins. Here, we performed a historical analysis of cyanobacterial abundance in a large and important ecosystem of South America (Uruguay river, ca 1900 km long, 365,000 km2 basin). We evaluated the interannual relationships between cyanobacterial abundance and land use change, river flow, urban sewage, temperature and precipitation from 1963 to the present. Our results indicated an exponential increase in cyanobacterial abundance during the last two decades, congruent with an increase in phosphorus concentration. A sharp shift in the cyanobacterial abundance rate of increase after the year 2000 was identified, resulting in abundance levels above public health alert since 2010. Path analyses showed a strong positive correlation between cyanobacteria and cropland area at the entire catchment level, while precipitation, temperature and water flow effects were negligible. Present results help to identify high nutrient input agricultural practices and nutrient enrichment as the main factors driving toxic bloom formation. These practices are already exerting severe effects on both aquatic ecosy... Presentar Todo |
Palabras claves : |
Crops; Cyanobacterial blooms; Health risk; Land use; Precipitation; Temperature. |
Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
Marc : |
LEADER 03701naa a2200313 a 4500 001 1063977 005 2023-04-27 008 2023 bl uuuu u00u1 u #d 022 $a1354-1013 024 7 $a10.1111/gcb.16587$2DOI 100 1 $aKRUK, C. 245 $aRise of toxic cyanobacterial blooms is promoted by agricultural intensification in the basin of a large subtropical river of South America.$h[electronic resource] 260 $c2023 500 $aArticle history: Received 6 July 2022, Accepted 27 November 2022, First published online 06 January 2023. -- Corresponde author: Kruk, C.; Instituto de Ecología y Ciencias Ambientales, Facultad de Ciencias, Udelar, Uruguay; email:ckruk@yahoo.com -- FUNDING: This work is part of the project ?Modelización de los efectos del cambio y la variabilidad climática en la intensificación de las floraciones de cianobacterias tóxicas en el río Uruguay y Río de la Plata? financed by Research for Climate (2021)-National Innovation and Research Agency of Uruguay (ANII) (ICC_X_2021_1_171370) and the project ?Algoritmos automatizados para la predicción espacio-temporal de calidad de agua mediada por floraciones tóxicas en sistemas de relevancia para el agua potable y la recreación? financed by Inteligencia artificial para el manejo de crisis y la construcción de resiliencia (Uruguay, Argentina: ANII, IDRC, CONICET and FAPESP). 520 $aToxic cyanobacterial blooms are globally increasing with negative effects on aquatic ecosystems, water use and human health. Blooms? main driving forces are eutrophication, dam construction, urban waste, replacement of natural vegetation with croplands and climate change and variability. The relative effects of each driver have not still been properly addressed, particularly in large river basins. Here, we performed a historical analysis of cyanobacterial abundance in a large and important ecosystem of South America (Uruguay river, ca 1900 km long, 365,000 km2 basin). We evaluated the interannual relationships between cyanobacterial abundance and land use change, river flow, urban sewage, temperature and precipitation from 1963 to the present. Our results indicated an exponential increase in cyanobacterial abundance during the last two decades, congruent with an increase in phosphorus concentration. A sharp shift in the cyanobacterial abundance rate of increase after the year 2000 was identified, resulting in abundance levels above public health alert since 2010. Path analyses showed a strong positive correlation between cyanobacteria and cropland area at the entire catchment level, while precipitation, temperature and water flow effects were negligible. Present results help to identify high nutrient input agricultural practices and nutrient enrichment as the main factors driving toxic bloom formation. These practices are already exerting severe effects on both aquatic ecosystems and human health and projections suggest these trends will be intensified in the future. To avoid further water degradation and health risk for future generations, a large-scale (transboundary) change in agricultural management towards agroecological practices will be required. © 2023 John Wiley & Sons Ltd. 653 $aCrops 653 $aCyanobacterial blooms 653 $aHealth risk 653 $aLand use 653 $aPrecipitation 653 $aTemperature 700 1 $aSEGURA, A. 700 1 $aPIÑEIRO, G. 700 1 $aBALDASSINI, P. 700 1 $aPÉREZ-BECOÑA, L. 700 1 $aGARCÍA-RODRÍGUEZ, F. 700 1 $aPERERA, G. 700 1 $aPICCINI, C. 773 $tGlobal Change Biology, 2023, volume 29, issue 7, pp. 1774-1790. doi: https://doi.org/10.1111/gcb.16587
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