Article (Scientific journals)
Methane balance of an intensively grazed pasture and estimation of the enteric methane emissions from cattle
Dumortier, Pierre; Aubinet, Marc; Beckers, Yves et al.
2017In Agricultural and Forest Meteorology, 232, p. 527–535
Peer Reviewed verified by ORBi
 

Files


Full Text
DUMORTIER_2017.pdf
Publisher postprint (3.01 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Eddy covariance; Methane; Pasture; Cattle; Footprint; Livestock emissions
Abstract :
[en] The methane turbulent fluxes of an intensively grazed pasture were measured continuously from June 2012 to December 2013 at the Dorinne Terrestrial Observatory (DTO) in Belgium. During grazing periods, the fluxes were dominated by enteric fermentation and were found to be strongly related to cow stocking density. In 2013, total emission from the pasture was found between 9 and 11 g CH4 m−2, 97% of which being emitted during grazing periods. Emission per LU (livestock unit) was estimated in a non-invasive way by integrating eddy covariance fluxes over large periods and by assuming a homogeneous average cattle disposition on the pasture. This estimate was compared to the one obtained during confinement periods, where cows were confined in a small part of the pasture. The emission per LU varied between 104 and 134 g CH4 LU−1 day−1 (13 and 17 g CH4 kg DMI−1), depending on the dataset and the computation method used. Diel course was characterized by two emission peaks, one in the morning and a larger one in the afternoon. For rest periods (no cattle on the pasture), small emissions were observed (median and mean values of 0.5 and 1.5 mg CH4 m−2 day−1, respectively).
Disciplines :
Environmental sciences & ecology
Author, co-author :
Dumortier, Pierre ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Aubinet, Marc ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Beckers, Yves  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Zootechnie
Chopin, Henri ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Debacq, Alain ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Gourlez de la Motte, Louis ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Jerome, Elisabeth ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Wilmus, Frédéric ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Heinesch, Bernard  ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Echanges Ecosystèmes - Atmosphère
Language :
English
Title :
Methane balance of an intensively grazed pasture and estimation of the enteric methane emissions from cattle
Publication date :
January 2017
Journal title :
Agricultural and Forest Meteorology
ISSN :
0168-1923
eISSN :
1873-2240
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
232
Pages :
527–535
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
FWB - Fédération Wallonie-Bruxelles [BE]
DGA - Région wallonne. Direction générale de l'Agriculture [BE]
Available on ORBi :
since 19 October 2016

Statistics


Number of views
162 (64 by ULiège)
Number of downloads
22 (22 by ULiège)

Scopus citations®
 
14
Scopus citations®
without self-citations
9
OpenCitations
 
14

Bibliography


Similar publications



Contact ORBi