Porewater δ13CDOC Indicates Variable Extent Of Degradation In Different Talik Layers Of Coastal Alaskan Thermokarst Lakes

• Main Authors: Meisel, Ove H., Dean, Joshua F., Vonk, Jorien E., Wacker, Lukas, Reichart, Gert-Jan, Dolman, A. Johannes
• Format: Text
• Language: English
• Published: 2020
• Subjects: Arctic; Talik; permafrost; Thermokarst; Alaska
• Online Access: https://doi.org/10.5194/bg-2020-439; https://bg.copernicus.org/preprints/bg-2020-439/

Thermokarst lakes play an important role in permafrost environments by warming up and insulating the underlying permafrost. As a result, thaw bulbs of unfrozen ground (taliks) are formed. Since these taliks remain perennially thawed, they are zones of increased degradation where microbial activity a...