Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Hugelius, Gustaf; Kuhry, Peter; Tarnocai, Charles; Virtanen, Tarmo A (2010): Radiocarbon dating, carbon storage and soil properties of samples from Tulemalu Lake, central Canadian Arctic. PANGAEA, https://doi.org/10.1594/PANGAEA.786466, Supplement to: Hugelius, G et al. (2010): Soil organic carbon pools in a periglacial landscape: a case study from the central Canadian Arctic. Permafrost and Periglacial Processes, 21(1), 16-29, https://doi.org/10.1002/ppp.677

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
We investigated total storage and landscape partitioning of soil organic carbon (SOC) in continuous permafrost terrain, central Canadian Arctic. The study is based on soil chemical analyses of pedons sampled to 1 m depth at 35 individual sites along three transects. Radiocarbon dating of cryoturbated soil pockets, basal peat and fossil wood shows that cryoturbation processes have been occurring since the Middle Holocene and that peat deposits started to accumulate in a forest-tundra environment where spruce was present (~6000 cal yrs BP). Detailed partitioning of SOC into surface organic horizons, cryoturbated soil pockets and non-cryoturbated mineral soil horizons is calculated (with storage in active layer and permafrost calculated separately) and explored using principal component analysis. The detailed partitioning and mean storage of SOC in the landscape are estimated from transect vegetation inventories and a land cover classification based on a Landsat satellite image. Mean SOC storage in the 0-100 cm depth interval is 33.8 kg C/m**2, of which 11.8 kg C/m**2 is in permafrost. Fifty-six per cent of the total SOC mass is stored in peatlands (mainly bogs), but cryoturbated soil pockets in Turbic Cryosols also contribute significantly (17%). Elemental C/N ratios indicate that this cryoturbated soil organic matter (SOM) decomposes more slowly than SOM in surface O-horizons.
Coverage:
Latitude: 62.901600 * Longitude: -99.161500
Date/Time Start: 2006-08-07T00:00:00 * Date/Time End: 2006-08-15T00:00:00
Event(s):
Tulemalu * Latitude: 62.901600 * Longitude: -99.161500 * Date/Time Start: 2006-08-07T00:00:00 * Date/Time End: 2006-08-15T00:00:00 * Elevation: 290.0 m * Location: Tulemalu Lake, Canada
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Size:
3 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text (use the following character encoding: )