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Environmental assessment of biofuel pathways in Ile de France based on ecosystem modeling

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 : pp. 511-518.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : AGRICULTURAL ENGINEERING / Quartile : Q1, Sujet : BIOTECHNOLOGY & APPLIED MICROBIOLOGY / Quartile : Q1, Sujet : ENERGY & FUELS

Abstract : 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. (Résumé d'auteur)

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 biogéochimique, Analyse du cycle de vie

Mots-clés géographiques Agrovoc : Nord-pas de Calais, Île de France

Mots-clés complémentaires : Filière

Classification Agris : P06 - Renewable energy resources
F01 - Crops
P01 - Nature conservation and land resources
P40 - Meteorology and climatology

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)
  • 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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