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Seasonal fluxes of carbon monoxide from an intensively grazed grassland in Scotland

Fluxes of carbon monoxide (CO) were measured using a fast-response quantum cascade laser absorption spectrometer and the eddy covariance method at a long-term intensively grazed grassland in southern Scotland. Measurements lasted 20 months from April 2016 to November 2017, during which normal agricu...

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Autores principales: Cowan, N., Helfter, C., Langford, B., Coyle, M., Levy, P., Moxley, J., Simmons, I., Leeson, S., Nemitz, E., Skiba, U.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pergamon 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6358145/
https://www.ncbi.nlm.nih.gov/pubmed/30740027
http://dx.doi.org/10.1016/j.atmosenv.2018.09.039
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author Cowan, N.
Helfter, C.
Langford, B.
Coyle, M.
Levy, P.
Moxley, J.
Simmons, I.
Leeson, S.
Nemitz, E.
Skiba, U.
author_facet Cowan, N.
Helfter, C.
Langford, B.
Coyle, M.
Levy, P.
Moxley, J.
Simmons, I.
Leeson, S.
Nemitz, E.
Skiba, U.
author_sort Cowan, N.
collection PubMed
description Fluxes of carbon monoxide (CO) were measured using a fast-response quantum cascade laser absorption spectrometer and the eddy covariance method at a long-term intensively grazed grassland in southern Scotland. Measurements lasted 20 months from April 2016 to November 2017, during which normal agricultural activities continued. Observed fluxes followed a regular diurnal cycle, peaking at midday and returning to values near zero during the night, with occasional uptake observed. CO fluxes correlated well with the meteorological variables of solar radiation, soil temperature and soil moisture content. Using a general additive model (GAM) we were able to gap fill CO fluxes and estimate annual fluxes of 0.38 ± 0.046 and 0.35 ± 0.045 g C m(−2) y(−1)g C m(−2) y(−1) for 2016 and 2017, respectively. If the CO fluxes reported in this study are representative of UK grasslands, then national annual emissions could be expected to be in the order of 61.91 (54.3–69.5) Gg, which equates to 3.8% (3.4–4.3%) of the current national inventory total.
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spelling pubmed-63581452019-02-08 Seasonal fluxes of carbon monoxide from an intensively grazed grassland in Scotland Cowan, N. Helfter, C. Langford, B. Coyle, M. Levy, P. Moxley, J. Simmons, I. Leeson, S. Nemitz, E. Skiba, U. Atmos Environ (1994) Article Fluxes of carbon monoxide (CO) were measured using a fast-response quantum cascade laser absorption spectrometer and the eddy covariance method at a long-term intensively grazed grassland in southern Scotland. Measurements lasted 20 months from April 2016 to November 2017, during which normal agricultural activities continued. Observed fluxes followed a regular diurnal cycle, peaking at midday and returning to values near zero during the night, with occasional uptake observed. CO fluxes correlated well with the meteorological variables of solar radiation, soil temperature and soil moisture content. Using a general additive model (GAM) we were able to gap fill CO fluxes and estimate annual fluxes of 0.38 ± 0.046 and 0.35 ± 0.045 g C m(−2) y(−1)g C m(−2) y(−1) for 2016 and 2017, respectively. If the CO fluxes reported in this study are representative of UK grasslands, then national annual emissions could be expected to be in the order of 61.91 (54.3–69.5) Gg, which equates to 3.8% (3.4–4.3%) of the current national inventory total. Pergamon 2018-12 /pmc/articles/PMC6358145/ /pubmed/30740027 http://dx.doi.org/10.1016/j.atmosenv.2018.09.039 Text en © 2018 The Authors http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cowan, N.
Helfter, C.
Langford, B.
Coyle, M.
Levy, P.
Moxley, J.
Simmons, I.
Leeson, S.
Nemitz, E.
Skiba, U.
Seasonal fluxes of carbon monoxide from an intensively grazed grassland in Scotland
title Seasonal fluxes of carbon monoxide from an intensively grazed grassland in Scotland
title_full Seasonal fluxes of carbon monoxide from an intensively grazed grassland in Scotland
title_fullStr Seasonal fluxes of carbon monoxide from an intensively grazed grassland in Scotland
title_full_unstemmed Seasonal fluxes of carbon monoxide from an intensively grazed grassland in Scotland
title_short Seasonal fluxes of carbon monoxide from an intensively grazed grassland in Scotland
title_sort seasonal fluxes of carbon monoxide from an intensively grazed grassland in scotland
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6358145/
https://www.ncbi.nlm.nih.gov/pubmed/30740027
http://dx.doi.org/10.1016/j.atmosenv.2018.09.039
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