Activity and abundance of methanotrophic bacteria in a northern mountainous gradient of wetlands.

ABSTRACT: Methane uptake and diversity of methanotrophic bacteria was investigated across six hydrologically connected wetlands in a mountainous forest landscape upstream of lake Langtjern, southern Norway. From floodplain through shrubs, forest and sedges to a Sphagnum covered site, growing season CH₄ production was insufficiently consumed to balance release into the atmosphere. Emission increased by soil moisture ranging 0.6-6.8 mg CH₄ m^-2  h^-1 . Top soils of all sites consumed CH₄ including at the lowest 78 ppmv CH₄ supplied, thus potentially oxidizing 17-51 nmol CH₄ g^-1 dw h^-1 , with highest V_max 440 nmol g^-1 dw h^-1 under Sphagnum and lowest K_m 559 nM und

SUBMITTER: Jensen S 

PROVIDER: S-EPMC10464705 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature