Gabrielle Benoît, Gagnaire Nathalie, Massad Raia Silvia, Dufossé Karine, Bessou Cécile. 2014. Environmental assessment of biofuel pathways in Ile de France based on ecosystem modeling. Bioresource Technology, 152 : 511-518.
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Quartile : Q1, Sujet : AGRICULTURAL ENGINEERING / Quartile : Q1, Sujet : BIOTECHNOLOGY & APPLIED MICROBIOLOGY / Quartile : Q1, Sujet : ENERGY & FUELS
Résumé : The objective of the work reported here was to reduce the uncertainty on the greenhouse gas balances of biofuels using agro-ecosystem modeling at a high resolution over the Ile-de-France region in Northern France. The emissions simulated during the feedstock production stage were input to a life-cycle assessment of candidate biofuel pathways: bioethanol from wheat, sugar-beet and miscanthus, and biodiesel from oilseed rape. Compared to the widely-used methodology based on fixed emission factors, ecosystem modeling lead to 55-70% lower estimates for N2O emissions, emphasizing the importance of regional factors. The lifecycle GHG emissions of first-generation biofuels were 50-70% lower than fossil-based equivalents, and 85% lower for cellulosic ethanol. When including indirect land-use change effects, GHG savings became marginal for biodiesel and wheat ethanol, but were positive due to direct effects for cellulosic ethanol.
Mots-clés Agrovoc : production énergétique, biocarburant, éthanol, gaz à effet de serre, agroécosystème, modélisation environnementale, impact sur l'environnement, évaluation de l'impact, utilisation des terres, dioxyde d'azote, Brassica napus, Triticum, betterave sucrière, Miscanthus, cycle dans les écosystèmes, analyse du cycle de vie
Mots-clés géographiques Agrovoc : Nord-pas de Calais, Île de France, France
Mots-clés complémentaires : Filière
Classification Agris : P06 - Sources d'énergie renouvelable
F01 - Culture des plantes
P01 - Conservation de la nature et ressources foncières
P40 - Météorologie et climatologie
Champ stratégique Cirad : Axe 2 (2014-2018) - Valorisation de la biomasse
Auteurs et affiliations
- Gabrielle Benoît, AgroParisTech (FRA)
- Gagnaire Nathalie, INRA (FRA)
- Massad Raia Silvia, INRA (FRA)
- Dufossé Karine, INRA (FRA)
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Bessou Cécile, CIRAD-PERSYST-UPR Systèmes de pérennes (FRA)
ORCID: 0000-0001-6686-8468
Source : Cirad - Agritrop (https://agritrop.cirad.fr/573039/)
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