Aerobic carbon dioxide production data of permafrost-affected soils of the northeast Siberian polygonal tundra under different treatments

We aerobically incubated soil samples from a polygon center (P3, 72° 22.5 N, 126° 29.4 E) on Samoylov, Northeast Siberia for 150 days. We used three soil layers ((i) surface active layer, (ii) bottom active layer, (iii) permafrost), three different temperatures ((i) 1°C, (ii) 4°C, (iii) 8°C), and two treatments ((i) control without substrate addition, (ii) amended with 13C labeled Carex aquatilis. For each sample we used 4 aliquots. CO2 production was measured via gas chromatography. The isotopic signature of the produced CO2 was measured via isotope-ratio mass spectrometry. To differentiate between soil organic matter- (SOM-) and Carex-derived CO2 in amended samples, we used an isotopic mixing model. In control incubations all CO2 is SOM-derived.

Data and Resources

Dataset extent

Map data © OpenStreetMap contributors
Source https://doi.pangaea.de/10.1594/PANGAEA.864865
Version 1.0
Citation None
Authors
  • Author Name: Josefine Walz
Temporal coverage
Spatial coverage { "coordinates": [ 126.48982, 72.37443 ], "type": "Point" }
Station research-station-samoylov-island
Collaborator
Variable measured
  • Variable name: DEPTH, soil
Measurement Technique
    Date published 2016-09-22
    Date modified
    Status
    Publisher
    • Publisher name: PANGAEA  Publisher URL: https://www.pangaea.de/
    Provider
    License https://creativecommons.org/licenses/by/3.0/