Organic carbon, humus and pH values in cryogenic soils near Batagay megaslump, northern Yakutia (2019)

• Main Authors: Vasil'chuk, Yurij K, Vasil'chuk, Jessica Yurevna, Ginzburg, Alexander P
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: air temperature; Batagay; Batagay_2019; Batagay Yedoma; Carbon; organic; total; cryogenic soils; DEPTH; sediment/rock; humus; Location; megaslump; Northern Yakutia; North Yakutia; Russia; organic carbon; Organic carbon stock; pedogenic horizon; pH; Phaeophyta; pH water in soil; Sample ID; soil extracts; Soil horizon; Subsample ID; Tyurin spectrophotometric method; Verkhoyansk; Kirgilyakh; Arctic; permafrost; Yakutia
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.937661; https://doi.org/10.1594/PANGAEA.937661

Cryogenic soils near Batagay megaslump, located in the Verkhoyansk region, northern Yakutia were investigated in detail in August-September 2019. Soil samples from the Batagay megaslump were analyzed for organic carbon and humic substances. The pH was determined in soil extracts. On the slope to the Batagay megaslump, a soil catena was studied. It included the near-summit surface of the Kirgilyakh slope, the middle part of the slope, as well as the bord of the Batagai megaslump. The soil cover in the area of the Batagay ravine is represented by various types of soils formed on permafrost rocks, mainly Cryosols Gleyic, found in various landscape conditions, and Podzols Entic are also sporadically distributed in the area. On alluvial deposits in the valley of the Batagaika river Podzols Haplic are formed. Leptosols Lithic are confined to the elevation of the relief with bedrock located close to the surface. The main processes typical for soils in the Batagay megaslump area are: cryogenic structuring, organic matter accumulation, Al-Fe-humus and gleiing processes. Above the permafrost horizon a local minimum of pH values was noted both in Podsols Entic and in Cryosols Gleyic.