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Variabilité des flux de CH4 dans une tourbière en fonction de la végétation et de la saturation en eau

Abstract : To better understand the interactions between the ecosystems and the climate, it is necessary to understand how global hanges affect Green House Gas (GHG) fluxes. In natural environment, and especially in peatlands, spatio-temporal variability are very important and still remains to be studied in detail. Furthermore, these fluxes, closely related to the vegetation and hydrological conditions, occur through different pathways: diffusion, transport through plants, ebullition. This last form of emission, because it is abrupt and occasional, is difficult to grasp and quantify with traditional Gas Chromatography techniques. Here we report the observations and quantification of CH4 emission through bubbles with a new high frequency infra-red spectrometer.
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https://hal.inrae.fr/hal-02749070
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  • HAL Id : hal-02749070, version 1
  • PRODINRA : 50935

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Sébastien Gogo, Fatima Laggouin-Défarge, Christophe Guimbaud, Stéphane Binet. Variabilité des flux de CH4 dans une tourbière en fonction de la végétation et de la saturation en eau. 36. Journées scientifiques du GFHN;8. Colloque GEOFCAN;Milieux poreux et géophysique, Nov 2011, Orléans, France. ⟨hal-02749070⟩

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