Potential CO2 and CH4 production in the central Lena River Delta, Kurungnakh and Samoylov Islands from 12 permafrost profiles sampled in 2018 ...

• Main Authors: Treat, Claire C, Fuchs, Matthias, Laurent, Mélissa
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Arctic Tundra; Flood plain; Grain Size; incubation; Laboratory experiment; Methane emissions; permafrost carbon storage; permafrost soil; radiocarbon; Yedoma; Event label; Type of study; Time, incubation; Identification; Treatment; Site; Core; Depth, description; DEPTH, soil; Replicate; Sample ID; Methane, production rate, CH4-C per mass soil; Methane, production rate, CH4-C per mass carbon; Methane, production, CH4-C per mass soil; Methane, production, CH4-C per mass carbon; Carbon dioxide, production rate, CO2-C per mass soil; Carbon dioxide, production rate, CO2-C per mass carbon; Carbon dioxide, production, CO2-C per mass soil; Carbon dioxide, production, CO2-C per mass carbon; Soil sample; Gas chromatograph, Agilent, 7890A; with flame ionization detection FID; RU-Land_2018_Lena; AWI Arctic Land Expedition; Carbon in Permafrost / Kohlenstoff im Permafrost KoPF; Formation, turnover and release of carbon in Siberian permafrost landscapes CARBOPERM; The role of non-growing season processes in the methane and nitrous oxide budgets in pristine northern ecosystems FluxWIN; Arctic; Fid; Ice; lena river; permafrost; Tundra; Yakutia
• Online Access: https://dx.doi.org/10.1594/pangaea.959744; https://doi.pangaea.de/10.1594/PANGAEA.959744

Arctic warming increases the degradation of permafrost soils but little is known about floodplain soils and other permafrost soils in the permafrost region. This dataset present soil properties from twelve analyzed cores located in the northeastern Siberian Lena River Delta within the continuous permafrost zone in northern Yakutia, Russia that were sampled in 2018. The cores represent intact yedoma, yedoma thaw slumps, and floodplain profiles. The soil coring and sampling was carried out in August 2018 for a total of 30 soil cores, 35 soil profiles, and 341 sediment samples. First, vegetation and other characteristics of the plots were described. Then, the active layer soils were excavated, described, and sampled with a fixed volume cylinder (250 cm³). Then the permafrost layers were sampled with a modified, snow, ice, and permafrost (SIPRE) auger to a depth of 1 m (core diameter of 7.62 cm) and visually described in their characteristics. Each core was divided into subsamples with 5-10 cm length according ...