Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Sub-surface Carbon Stocks in Northern Taiga Landscapes Exposed in the Batagay Megaslump, Yana Upland, Yakutia

Version 1 : Received: 21 July 2020 / Approved: 22 July 2020 / Online: 22 July 2020 (11:28:37 CEST)

A peer-reviewed article of this Preprint also exists.

Shepelev, A.G.; Kizyakov, A.; Wetterich, S.; Cherepanova, A.; Fedorov, A.; Syromyatnikov, I.; Savvinov, G. Sub-Surface Carbon Stocks in Northern Taiga Landscapes Exposed in the Batagay Megaslump, Yana Upland, Yakutia. Land 2020, 9, 305. Shepelev, A.G.; Kizyakov, A.; Wetterich, S.; Cherepanova, A.; Fedorov, A.; Syromyatnikov, I.; Savvinov, G. Sub-Surface Carbon Stocks in Northern Taiga Landscapes Exposed in the Batagay Megaslump, Yana Upland, Yakutia. Land 2020, 9, 305.

Journal reference: Land 2020, 9, 305
DOI: 10.3390/land9090305

Abstract

The most massive and fast-eroding thaw slump of the Northern Hemisphere located in the Yana uplands of northern Yakutia was investigated to assess in detail the cryogenic inventory and carbon pools of two distinctive Ice Complex stratigraphic units and the uppermost cover deposits. Differentiating into modern and Holocene near-surface layers (active layer and shielding layer), highest total carbon contents were found in the active layer (18.7 kg m-2), while the shielding layer yielded much lower carbon content of 1.8 kg m-2. The late Pleistocene upper Ice Complex contained 10.4 kg m-2 total carbon, and the mid-Pleistocene lower Ice Complex 17.7 kg m-2. The proportion of organic carbon from total carbon content is well above 70% in all studied units with 94 % in the active layer, 73% in the shielding layer, 83% in the upper Ice Complex and 79% in the lower Ice Complex. Inorganic carbon is low in the overall structure of the deposits.

Subject Areas

Ice Complex; Yedoma; organic carbon; inorganic carbon; total carbon; Batagay megaslump; North Yakutia

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