Greenhouse gas budget of an organic broiler production system in France
| Autor: | Bertrand Méda, Christophe Flechard, Karine Germain, Christian Walter, Paul Robin, Marcel Lecomte, Sylvie Picard, Melynda Hassouna |
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| Přispěvatelé: | Unité de Recherches Avicoles (URA), Institut National de la Recherche Agronomique (INRA), Sol Agro et hydrosystème Spatialisation (SAS), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Elevage Alternatif et Santé des Monogastriques (UE EASM), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Recherches Avicoles (SRA), AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA) |
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| Zdroj: | HAL EmiLi 2012 International Symposium on Emissions of Gas and Dust from Livestock EmiLi 2012 International Symposium on Emissions of Gas and Dust from Livestock, Jun 2012, Saint-Malo, France. pp.73-76 International Symposium on Emissions of Gas and Dust from Livestock EmiLi 2012 International Symposium on Emissions of Gas and Dust from Livestock, Jun 2012, Saint-Malo, France. 2012 |
| Popis: | This paper presents the greenhouse gas (GHG) budget of an organic broiler production system in France, composed of a broiler house and an outdoor run. The study was conducted over 1 year on an experimental farm. In the broiler house, emissions of N2O and CH4 were measured using photo-acoustic infrared spectrometryand air flow rates were estimated using SF6 as tracer gas. On the outdoor run, N2O and CH4 fluxes were measured using static chambers. Spatial and temporal gap-filling methods were used to provide annual estimates of emissions. In the broiler house, CH4 and N2O annual emissions from manure represented about 49 and 71 g CO2-equivalents (CO2-eq.)/kg live weight (LW), while non-biotic CO2 emissions (heating) represented about 68 g CO2-eq./kg LW, suggesting that manure accounted for about 65% of total indoor CO2-eq. emissions. On the outdoor run, N2O emissions were estimated to 86 g CO2-eq./kg LW, while CH4 emissions were found negligible (-1 g CO2-eq./kg LW). However, long-term C sequestration on the outdoor run should be investigated since measured short-term variations in soil organic carbon suggested that the run could display a sink activity and thus compensate for a portion of GHG emissions. |
| Databáze: | OpenAIRE |
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