Structural Characterization of Dissolved Organic Matter in Permafrost Peatland Lakes

• Published in: Water
• Main Authors: Diogo Folhas, Armando C. Duarte, Martin Pilote, Warwick F. Vincent, Pedro Freitas, Gonçalo Vieira, Artur M. S. Silva, Regina M. B. O. Duarte, João Canário
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2020
• Subjects: permafrost; thermokarst; peatlands; subarctic; DOM; carbon cycle; Hydraulic engineering; TC1-978; Water supply for domestic and industrial purposes; TD201-500; Hudson Bay; Nunavik; Canada; Hudson; Kuujjuarapik; Whapmagoostui; Ice; Subarctic; Thermokarst
• Online Access: https://doi.org/10.3390/w12113059; https://doaj.org/article/794d1900fc5a48469e7d9b98327ca1e8

Thermokarst lakes result from the thawing of ice-rich permafrost and are widespread across northern landscapes. These waters are strong emitters of methane, especially in permafrost peatland regions, where they are stained black by high concentrations of dissolved organic matter (DOM). In the presen...