Abstract
The intensity of the microbiological processes of methane formation (MF) and methane oxidation (MO) was determined in the sediments and water of different types of Baltic lakes. The emission of methane from the lake sediments and methane distribution in the water column of the lakes were studied as functions of the lake productivity and hydrologic conditions. During summers, the intensity of MF in the lake sediments and waters varied from 0.001 to 106 ml CH4/(dm3 day) and from 0 to 3.2 ml CH4/(l day), respectively, and the intensity of MO in the sediments and water varied from 0 to 11.2 ml CH4/(dm3 day) and from 0 to 1.1 ml CH4/(l day), respectively. The total methane production (MP) in the lakes varied from 15 to 5000 ml CH4/(m2 day). In anoxic waters, the MP comprised 9–18% of the total PM in the lakes. The consumption of organic carbon for methanogenesis varied from 0.03 to 9.7 g/(m2 day). The role of the methane cycle in the degradation of organic matter in the lakes increased with their productivity.
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Dzyuban, A.N. Intensity of the Microbiological Processes of the Methane Cycle in Different Types of Baltic Lakes. Microbiology 71, 98–104 (2002). https://doi.org/10.1023/A:1017910602635
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DOI: https://doi.org/10.1023/A:1017910602635