In situ quantification of CH<Subscript>4</Subscript> bubbling events from a peat soil using a new infrared laser spectrometer期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

In situ quantification of CH4 bubbling events from a peat soil using a new infrared laser spectrometer

Authors:	Sébastien Gogo Christophe Guimbaud Fatima Laggoun-Défarge Valéry Catoire Claude Robert

Affiliation:	1.Centre de recherche d’Orleans,INRA, UR 0272 Science du Sol,Orléans Cedex 2,France;2.Laboratoire de Physique et de Chimie de l’Environnement et de l’Espace, UMR 6115,Université d’Orléans, CNRS/INSU, Observatoire des Sciences de l’Univers en région Centre,Orléans Cedex 2,France;3.Institut des Sciences de la Terre d’Orléans UMR 6113,Université d’Orléans, CNRS/INSU. Observatoire des Sciences de l’Univers en région Centre,Orléans Cedex 2,France

Abstract:	Purpose CH₄ emissions from peatlands are space and time dependent. The variety of efflux routes contributes to these variabilities. CH₄ bubbling remains difficult to investigate since it occurs on a timescale of seconds. The aims of this study were to use for the first time the recently built infrared high-resolution spectrometer, SPectrometre Infra-Rouge In situ Troposphérique to (1) measure in situ CH₄ fluxes in natural and artificial peatland plot and (2) observe online bubbling events with quantification of CH₄ emission fluxes corresponding to this very sudden degassing event.

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