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McNamara, N.P.; Gregg, R.; Oakley, S.; Stott, A.

Soil methane data from a wildfire chronosequence in northern Sweden

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© UK Centre for Ecology & Hydrology

This dataset is made available under the terms of the Open Government Licence

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https://doi.org/10.5285/66cc8fd4-e722-44c4-9363-5930b8373b2c
Data comprise soil methane oxidation results from a group of 30 forested islands in northern Sweden sampled in 2006 and 2007. The islands have different fire histories and represent a retrogressive chronosequence spanning 5000 years.
Publication date: 2015-07-31
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Format

Comma-separated values (CSV)

Spatial information

Study area
Spatial representation type
Tabular (text)
Spatial reference system
WGS 84

Temporal information

Temporal extent
2006-01-01    to    2007-12-31

Provenance & quality

In situ gas fluxes were measured over one week using a static chamber method during August 2006. Samples were stored in exetainer vials (Labco, UK) for up to one month prior to analyses. Concentrations of CH4 were analysed by gas chromatography, on a PerkinElmer Autosystem XL Gas Chromatograph (GC) with Flame Ionization Detector, and results were calibrated using certified gas standards. CH4 was separated isothermally on a 2 m Poropak Q 50x80 mesh packed column at 40 deg C, with N2 as the carrier gas. CH4 fluxes from ex situ cores were measured from the top 25 cm of soil (or to the bedrock where soil depth was less than 25 cm) in 2006 and then through the entire humus profile to the bedrock (20-85 cm depth) in 2007. In 2006, intact cores (11 cm diameter, 25 cm depth) were removed from each island (40 per island size classification) and were weighed on the day of collection. Cores were stored at 12 deg C in the dark until measurement and were maintained at their field collected moisture content using an artificial rain solution. In 2007, one full profile core (0.15 m diameter) was collected from each island humus profile to the bedrock in July 2007. A similar static chamber approach (volume = 0.0021 m3, diameter = 0.15 m) for measuring soil CH4 fluxes, applied under the same measurement conditions as previously described. In situ gas samples were collected from within the soil atmosphere in the humus profiles of each island over 4 days in July 2007. Four stainless steel sampling probes (19 gauge, 0.69 mm inner diameter) were inserted into the soil profiles 30 minutes before soil atmosphere samples were collected at 15, 35, 55 and 75 cm depth (dead-space volume = 0.06, 0.13, 0.21, 0.28 ml, respectively). From each probe a 100 ml sample was collected with 90 ml being transferred to a 50 ml Wheaton bottle with butyl rubber stopper and crimp top seals and 9 ml to a 3.6 ml exetainer vial. After collection each butyl rubber stopper and crimp top was sealed with wax. Analyses of the 13C values of CH4 were completed within one month at the Centre for Ecology & Hydrology, Lancaster. Full details are in supporting information associated with this record.

Licensing and constraints

This dataset is made available under the terms of the Open Government Licence

Cite this dataset as:
McNamara, N.P.; Gregg, R.; Oakley, S.; Stott, A. (2015). Soil methane data from a wildfire chronosequence in northern Sweden . NERC Environmental Information Data Centre. https://doi.org/10.5285/66cc8fd4-e722-44c4-9363-5930b8373b2c

© UK Centre for Ecology & Hydrology

Citations

McNamara, N. P., Gregg, R., Oakley, S., Stott, A., Rahman, M. T., Murrell, J. C.,... Ostle, N. J. (2015). Soil Methane Sink Capacity Response to a Long-Term Wildfire Chronosequence in Northern Sweden. PLOS ONE, 10(9), e0129892. https://doi.org/10.1371/journal.pone.0129892

Correspondence/contact details

McNamara, N.P.
UK Centre for Ecology & Hydrology
Lancaster Environment Centre, Library Avenue, Bailrigg
Lancaster
Lancashire
LA1 4AP
UNITED KINGDOM
 enquiries@ceh.ac.uk

Authors

McNamara, N.P.
Centre for Ecology & Hydrology
Gregg, R.
Centre for Ecology & Hydrology
Oakley, S.
Centre for Ecology & Hydrology
Stott, A.
Centre for Ecology & Hydrology

Other contacts

Rights holder
UK Centre for Ecology & Hydrology
Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC Environmental Information Data Centre
 info@eidc.ac.uk
Owner
Natural Environment Research Council
 enquiries@ceh.ac.uk

Additional metadata

Topic categories
environment
INSPIRE theme
Soil
Keywords
biogeochemistry , boreal , chronosequence , climate , flux , island , methane , process , soil , Soil , Sweden , Uddjaure , vegetation
Last updated
21 March 2025 09:38