Simulation of greenhouse gas production during key transitions in a coastal thermokarst landscape in an anaerobic incubation experiment with samples from Bykovsky Peninsula, Siberia ...

• Main Authors: Jenrich, Maren, Liebner, Susanne, Knoblauch, Christian, Jongejans, Loeka Laura, Strauss, Jens
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2024
• Subjects: Anaerobic incubation; Arctic permafrost coasts; carbon dioxide production; Laboratory experiment; methane production; thermokarst lagoon formation; thermokarst lakes; Event label; Core; Sample ID; Sediment type; Type of study; Treatment; Replicate; Depth, top/min; Depth, bottom/max; DEPTH, sediment/rock; Date; Day of experiment; Carbon dioxide, production, anaerobic, per soil dry mass; Carbon dioxide, production, anaerobic, per mass soil organic carbon; Carbon dioxide, production rate, per soil dry mass; Carbon dioxide, production rate, per mass soil organic carbon; Methane, production, anaerobic, per soil dry mass; Methane, production, anaerobic, per mass soil organic carbon; Methane, production rate, per soil dry mass; Methane, production rate, per mass soil organic carbon; Exposure; Mobile drilling rig, Geotechnika, URB-4T; RU-Land_2014_Lena_Sobo-Byk; RU-Land_2017_Lena_Bykovsky; AWI Arctic Land Expedition; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool PETA-CARB; permafrost; polar fox; Thermokarst; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.967267; https://doi.pangaea.de/10.1594/PANGAEA.967267

The dataset presents the greenhouse gas production (CO2 and CH4) from sediment of a terrestrial permafrost outcrop (Byk14-A-1; 71.85175°N, 129.350883°E), the thermokarst lake Goltsovoye (PG2412 (TKL), 71.74515°N, 129.30217°E), the nearly-closed Polar Fox Lagoon (PG2411 (LAG1), 71.743056°N, 129.337778°E) and the semi-open Uomullyakh Lagoon (PG2410-1 (LAG1), 71.730833°N, 129.2725°E). We incubated the samples anaerobically at 4 °C under fresh (c=0 g/L), brackish (c=13g/L) and marine (36g/L) conditions for one year and measured carbon dioxide (CO2) and methane (CH4) concentrations regularly in a 250 µL subsample using gas chromatography with an Agilent GC 7890A equipped with an Agilent HP-PLOT Q column. Cumulative CO2 and CH4 concentrations and production rates per day are given over time for all samples with three replicates each per gram of dry weight and normalised to gram of soil organic carbon (SOC). ...