Nom du corpus

Corpus Systématique Végétale

Titre du document

Site-specific global warming potentials of biogenic CO2 for bioenergy: contributions from carbon fluxes and albedo dynamics

Lien vers le document
Éditeur
IOP
Langue(s) du document
Anglais
Type de document
Brief-communication
Mots-clés d'auteur
  • Letter
  • Special Issue on Second generation biofuels and sustainability
  • bioenergy
  • LCA
  • climate metrics
  • biogenic CO2
  • albedo
Nom du fichier dans la ressource
Syst_veg6_v2_002268
Auteur(s)
  • Francesco Cherubini 1
  • Ryan M Bright 1
  • Anders H Strmman 1
Affiliation(s)
  • 1) Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
Résumé

Production of biomass for bioenergy can alter biogeochemical and biogeophysical mechanisms, thus affecting local and global climate. Recent scientific developments have mainly embraced impacts from land use changes resulting from area-expanded biomass production, with several extensive insights available. Comparably less attention, however, has been given to the assessment of direct land surfaceatmosphere climate impacts of bioenergy systems under rotation such as in plantations and forested ecosystems, whereby land use disturbances are only temporary. Here, following IPCC climate metrics, we assess bioenergy systems in light of two important dynamic land use climate factors, namely, the perturbation in atmospheric carbon dioxide (CO2) concentration caused by the timing of biogenic CO2 fluxes, and temporary perturbations to surface reflectivity (albedo). Existing radiative forcing-based metrics can be adapted to include such dynamic mechanisms, but high spatial and temporal modeling resolution is required. Results show the importance of specifically addressing the climate forcings from biogenic CO2 fluxes and changes in albedo, especially when biomass is sourced from forested areas affected by seasonal snow cover. The climate performance of bioenergy systems is highly dependent on biomass species, local climate variables, time horizons, and the climate metric considered. Bioenergy climate impact studies and accounting mechanisms should rapidly adapt to cover both biogeochemical and biogeophysical impacts, so that policy makers can rely on scientifically robust analyses and promote the most effective global climate mitigation options.

Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - agronomie. sciences du sol et productions vegetales
Identifiant ISTEX
8631AF97FD3741D89BA64FEBE0F033D7A8850E0E
Revue

Environmental Research Letters

Année de publication
2012
Présence de XML structuré
Non
Score qualité du texte
9.712
Version PDF
1.4
Type de publication
Journal
ark:/67375/0T8-FL6MV5ZR-R
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