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Cross-Validation of a Mobile N20 Flux Prototype （IPNOA） Using Micrometeorological and Chamber Methods

Journal of Energy and Power Engineering 2015年第4期9卷 375-385页

作者： patricia laville Simone Neri David Continanza Luca Ferrante Vero Simona Bosco Giorgio Virgili EGC (Environnement et Grandes Cultures) Joint Research Unit National Institute for Agriculture Research Thiverval-Grignon 78850 France West Systems L.L.C. (Limited Liability Company) Firenze 50126 Italy Institute of Life Sciences Advanced School Sant 'Anna Pisa 56127 Italy

Within a LIFE＋ project IPNOA （improved flux prototype for n2o emission from agriculture）, LIFE11 ENV/IT/302 is a mobile prototype was developed to evaluate at field scale N20 emissions using a fast chamber technique. Main challenge was to develop a mobile system capable of moving on various field surfaces, equipped with very reliable N20 gas analyser （Los Gatos Research Inc.）, electrically autonomous （with batteries） and enough robust to face up to field conditions. In this paper, we report the major features of this prototype studied during two field campaigns. The N20 flux IPNOA prototype was compared with other methodological implementations： first, during an INGOS （integrated non-CO2 greenhouse gas observing systems） campaign on a grazed grassland at Easter Bush （Scotland） by Eddy correlation method, and then after on an arable crop at Grignon （France） using automatic and manual chambers fitted with QC-TILDAS （Quantum Cascade Tunable Infrared Laser Differential Absorption Spectrometer, Aerodyne Research Inc.）, with the 46C model of thermo-instrument analyser or with a GC （gas chromatography） analysis.

关键词： Monitoring device nitrous oxide inventory agricultural managements steady state chamber.

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Assessment of CH4 and C 2 surface emissions from Polesgo’s landfill(Ouagadougou, Burkina Faso) based on static chamber method

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Advances in Climate Change Research 2019年第3期10卷 181-191页

作者： Kayaba HARO Issoufou OUARMA Bernard NANA Antoine BERE Guy Christian TUBREOUMYA Sie Zacharie KAM patricia laville Benjamin LOUBET Jean KOULIDIATI Laboratoire de Physique et de Chimie de I'Environnement Universite Joseph Kl-ZERBOOuagadougou03 BP 7021 Ouagadougou 03Burkina Faso INRA AgroParisTech VMR ECOSYSThiverval-GrignonF-78850France Institut des Sciences Ouagadougou01 BP 1757 Ouagadougou 01Burkina Faso

Methane (CH4) and carbon dioxide (C02) surface emissions from Polesgo's landfill (Ouagadougou, Burkina Faso) were measured using the static chamber technique in 2017 and 2018. The Polesgo's landfill was composed of four zones: Phase I, II, Phase III, and SP. The surface of Phase I was fully covered and its conditions are better for surface emission measurements. As results concerning the Phase I zone, the geospatial means flux rates of CH4 (657 mg m-2 h l in 2017 and 1210 mg m 2 h_, in 2018, respectively) are measured higher than the tolerable value reported in literature. The emitted CH4 or C 02 have permitted to locate higher surface emissions which are related to the cover state. The calculated gas collection efficiency (27.4% in 2017 and 23.0% in 2018) is low compared to those reported for landfills integrating landfill gas (LFG) extraction system. The carbon footprint calculations (24,966 tC02-eq 2017 and 40,025 tC02-eq in 2018, respectively) shown that Polesgo's landfill is a significant source of greenhouse gases (GHG) and its important potential for organic recovery can contribute to reduce the carbon footprint.

关键词： Municipal solid waste landfilling CH4 C 02 Collection efficiency Static chamber method Carbon footprint

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