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

Soil methane data from a wildfire chronosequence in northern Sweden

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

Get the data

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

Format of the dataset : Comma-separated values (CSV)

You must cite: 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.


© Centre for Ecology & Hydrology (Natural Environment Research Council)


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

Supplemental information

This dataset is referenced in:

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.

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.

Correspondence/contact details

McNamara, N.P.
Centre for Ecology & Hydrology
Lancaster Environment Centre, Library Avenue, Bailrigg
United Kingdom


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

Other contacts

Environmental Information Data Centre
NERC Environmental Information Data Centre
Natural Environment Research Council


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


Topic categories
2006,  2007,  biogeochemistry,  boreal,  chronosequence,  climate,  flux,  island,  methane,  process,  Shore Section soil,  Soil Soil Sweden Uddjaure vegetation