@Article{Courtois_etal2019,
author="Courtois, E. A.
and Stahl, C.
and Burban, B.
and Van Den Berge, J.
and Berveiller, D.
and Br{\'e}chet, L.
and Larned Soong, J.
and Arriga, N.
and Pe{\~n}uelas, J.
and August Janssens, I.",
title="Automatic high-frequency measurements of full soil greenhouse gas fluxes in a tropical forest",
journal="Biogeosciences",
year="2019",
publisher="Copernicus GmbH",
volume="16",
number="3",
pages="785--796",
abstract="Measuring in situ soil fluxes of carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) continuously at high frequency requires appropriate technology. We tested the combination of a commercial automated soil CO 2 flux chamber system (LI-8100A) with a CH 4 and N 2 O analyzer (Picarro G2308) in a tropical rainforest for 4 months. A chamber closure time of 2 min was sufficient for a reliable estimation of CO 2 and CH 4 fluxes (100\% and 98.5\% of fluxes were above minimum detectable flux -- MDF, respectively). This closure time was generally not suitable for a reliable estimation of the low N 2 O fluxes in this ecosystem but was sufficient for detecting rare major peak events. A closure time of 25 min was more appropriate for reliable estimation of most N 2 O fluxes (85.6\% of measured fluxes are above MDF{\textpm}0.002 nmolm -2 s -1 ). Our study highlights the importance of adjusted closure time for each gas. {\textcopyright} Author(s) 2019.",
optnote="Export Date: 25 February 2019; Correspondence Address: Alice Courtois, E.; Department of Biology University of Antwerp, Centers of Excellence Global Change Ecology and PLECO (Plants and Ecosystems), Universiteitsplein 1, Belgium; email: courtoiselodie@gmail.com; Funding details: Centre de Coop{\'e}ration Internationale en Recherche Agronomique pour le D{\'e}veloppement, CIRAD; Funding details: European Research Council, ERC, ERC-2013-SyG 610028-IMBALANCE-P; Funding details: ANR-10-LABX-25-01,~ANR-11-INBS-0001; Funding details: U.S. Department of Energy, DOE, DE-AC02-05CH11231; Funding details: Agence Nationale de la Recherche, ANR; Funding details: Institut National de la Recherche Agronomique, INRA; Funding details: Fonds Wetenschappelijk Onderzoek, FWO; Funding text~1:~Acknowledgements. This research was supported by the European Research Council Synergy grant ERC-2013-SyG 610028-IMBALANCE-P. We thank Jan Segers for help in the initial setting of the system and Renato Winkler from Picarro and Rod Madsen and Jason Hupp from LI-COR for their help in combining the systems. We thank the staff of Paracou station, managed by UMR Ecofog (CIRAD, INRA; Kourou), which received support from {\textquoteleft}{\textquoteleft}Investissement d{\textquoteright}Avenir{\textquoteright}{\textquoteright} grants managed by Agence Nationale de la Recherche (CEBA: ANR-10-LABX-25-01, ANAEE-France: ANR-11-INBS-0001). This study was conducted in collaboration with the Guyaflux program belonging to SOERE F-ORE-T, which is supported annually by Ecofor, Allenvi, and the French national research infrastructure, ANAEE-F. This program also received support from an {\textquoteleft}{\textquoteleft}investissement d{\textquoteright}avenir{\textquoteright}{\textquoteright} grant from the Agence Nationale de la Recherche (CEBA, ref ANR-10-LABX-25-01). 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optnote="exported from refbase (http://php.ecofog.gf/refbase/show.php?record=860), last updated on Mon, 25 Feb 2019 09:19:01 -0300",
issn="17264170 (Issn)",
doi="10.5194/bg-16-785-2019",
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}