Methane in Lakes: Variability in Stable Carbon Isotopic Composition and the Potential Importance of Groundwater Input

• Published in: Frontiers in Earth Science
• Main Authors: Jonathan Schenk, Henrique O. Sawakuchi, Anna K. Sieczko, Gustav Pajala, David Rudberg, Emelie Hagberg, Kjell Fors, Hjalmar Laudon, Jan Karlsson, David Bastviken
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media S.A. 2021
• Subjects: stable carbon isotope; methane; lake; groundwater; endmember; Science; Q; Methane Lake; Subarctic
• Online Access: https://doi.org/10.3389/feart.2021.722215; https://doaj.org/article/0b9abcb7a6a44fa7965e8e6c0eaab13e

Methane (CH4) is an important component of the carbon (C) cycling in lakes. CH4 production enables carbon in sediments to be either reintroduced to the food web via CH4 oxidation or emitted as a greenhouse gas making lakes one of the largest natural sources of atmospheric CH4. Large stable carbon is...