Descloux S. auteur aut IRD Chanudet V. auteur aut IRD Serca D. auteur aut IRD Guérin Frédéric auteur aut IRD text journalArticle eng text/pdf born digital access Two greenhouse gases-methane (CH4) and nitrous oxide (N2O) - were monitored monthly during one year (2011) at the Eguzon Reservoir in France. The objective of the study was to quantify for the first time in a temperate area the total emissions of these gases through the main emission pathways (diffusion and bubbling from the reservoir, degassing and downstream diffusion). The reservoir was impounded in 1926 and had, in 2011, a eutrophic status promoting high organic matter degradation and nitrification-denitrification, all favouring CH4 and N2O production. CH4 and N2O emissions were dominated by diffusion from the reservoir surface (respectively 78.0% and 92.3%). Ebullition was only observed for CH4 and accounted for 14.0% of total CH4 emissions. Downstream degassing and diffusion represented 8.1% of the total CH4 emissions and 7.7% of the total N2O emissions. specialized Methane Nitrous oxide Diffusion Ebullition Degassing Eguzon reservoir FRANCE 021 062 598 959-972 2017 0048-9697 https://www.documentation.ird.fr/hor/fdi:010070303 10.1016/j.scitotenv.2017.04.066 0048-9697 [F B010070303] https://www.documentation.ird.fr/hor/fdi:010070303 https://www.documentation.ird.fr/intranet/publi/2017/08/010070303.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2017-09-05 2018-01-02 fdi:010070303 fre