Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions
Membrane inlet mass spectrometry was used to monitor dissolved gas concentrations and gas exchange rates of CO2, CH4 and O2 in peat cores from three very different locations in the Northern Hemisphere: Kopparås Mire (Sweden), Hestur Site (Iceland), and Ellergower Moss (Scotland). With an increase of...
Published in: | Atmospheric Environment |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Elsevier
2004
|
Subjects: | |
Online Access: | https://orca.cardiff.ac.uk/id/eprint/62670/ https://doi.org/10.1016/j.atmosenv.2004.08.004 |
id |
ftunivcardiff:oai:https://orca.cardiff.ac.uk:62670 |
---|---|
record_format |
openpolar |
spelling |
ftunivcardiff:oai:https://orca.cardiff.ac.uk:62670 2023-05-15T16:50:05+02:00 Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions Beckmann, Manfred Sheppard, Samuel Keir Lloyd, David 2004-12 https://orca.cardiff.ac.uk/id/eprint/62670/ https://doi.org/10.1016/j.atmosenv.2004.08.004 unknown Elsevier Beckmann, Manfred, Sheppard, Samuel Keir https://orca.cardiff.ac.uk/view/cardiffauthors/A004273C.html and Lloyd, David https://orca.cardiff.ac.uk/view/cardiffauthors/A028015T.html orcid:0000-0002-5656-0571 orcid:0000-0002-5656-0571 2004. Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions. Atmospheric Environment 38 (39) , pp. 6907-6913. 10.1016/j.atmosenv.2004.08.004 https://doi.org/10.1016/j.atmosenv.2004.08.004 doi:10.1016/j.atmosenv.2004.08.004 Article PeerReviewed 2004 ftunivcardiff https://doi.org/10.1016/j.atmosenv.2004.08.004 2022-10-27T22:39:41Z Membrane inlet mass spectrometry was used to monitor dissolved gas concentrations and gas exchange rates of CO2, CH4 and O2 in peat cores from three very different locations in the Northern Hemisphere: Kopparås Mire (Sweden), Hestur Site (Iceland), and Ellergower Moss (Scotland). With an increase of temperature gas solubilities are reduced, and due to additionally increased microbial activities higher gas emission rates for both CO2 and CH4 were observed. Experimental alterations of temperature and photosynthetically active radiation (PAR) also drastically effect daytime carbon dioxide emission rates as a result of changes in microbial and plant physiology. The impact of ebullition on gas emission rates was indicated by continuous measurements of gas concentrations in the headspace of Icelandic and Swedish cores using two different experimental setups. For methane, up to View the MathML source23 of the total emission from cores from both sites is released by ebullition. Total gas emission rate measurements in this study were similar for both experimental setups, and revealed gas effluxes comparable with field measurements for Scottish and Icelandic peat. Article in Journal/Newspaper Iceland Cardiff University: ORCA (Online Research @ Cardiff) Hestur ENVELOPE(-6.750,-6.750,61.417,61.417) Atmospheric Environment 38 39 6907 6913 |
institution |
Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
unknown |
description |
Membrane inlet mass spectrometry was used to monitor dissolved gas concentrations and gas exchange rates of CO2, CH4 and O2 in peat cores from three very different locations in the Northern Hemisphere: Kopparås Mire (Sweden), Hestur Site (Iceland), and Ellergower Moss (Scotland). With an increase of temperature gas solubilities are reduced, and due to additionally increased microbial activities higher gas emission rates for both CO2 and CH4 were observed. Experimental alterations of temperature and photosynthetically active radiation (PAR) also drastically effect daytime carbon dioxide emission rates as a result of changes in microbial and plant physiology. The impact of ebullition on gas emission rates was indicated by continuous measurements of gas concentrations in the headspace of Icelandic and Swedish cores using two different experimental setups. For methane, up to View the MathML source23 of the total emission from cores from both sites is released by ebullition. Total gas emission rate measurements in this study were similar for both experimental setups, and revealed gas effluxes comparable with field measurements for Scottish and Icelandic peat. |
format |
Article in Journal/Newspaper |
author |
Beckmann, Manfred Sheppard, Samuel Keir Lloyd, David |
spellingShingle |
Beckmann, Manfred Sheppard, Samuel Keir Lloyd, David Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions |
author_facet |
Beckmann, Manfred Sheppard, Samuel Keir Lloyd, David |
author_sort |
Beckmann, Manfred |
title |
Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions |
title_short |
Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions |
title_full |
Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions |
title_fullStr |
Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions |
title_full_unstemmed |
Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions |
title_sort |
mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions |
publisher |
Elsevier |
publishDate |
2004 |
url |
https://orca.cardiff.ac.uk/id/eprint/62670/ https://doi.org/10.1016/j.atmosenv.2004.08.004 |
long_lat |
ENVELOPE(-6.750,-6.750,61.417,61.417) |
geographic |
Hestur |
geographic_facet |
Hestur |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Beckmann, Manfred, Sheppard, Samuel Keir https://orca.cardiff.ac.uk/view/cardiffauthors/A004273C.html and Lloyd, David https://orca.cardiff.ac.uk/view/cardiffauthors/A028015T.html orcid:0000-0002-5656-0571 orcid:0000-0002-5656-0571 2004. Mass spectrometric monitoring of gas dynamics in peat monoliths: effects of temperature and diurnal cycles on emissions. Atmospheric Environment 38 (39) , pp. 6907-6913. 10.1016/j.atmosenv.2004.08.004 https://doi.org/10.1016/j.atmosenv.2004.08.004 doi:10.1016/j.atmosenv.2004.08.004 |
op_doi |
https://doi.org/10.1016/j.atmosenv.2004.08.004 |
container_title |
Atmospheric Environment |
container_volume |
38 |
container_issue |
39 |
container_start_page |
6907 |
op_container_end_page |
6913 |
_version_ |
1766040274747785216 |