Metagenomic evidence of suppressed methanogenic pathways along soil profile after wetland conversion to cropland.

ABSTRACT: Wetland conversion to cropland substantially suppresses methane (CH₄) emissions due to the strong suppression of methanogenesis, which consists of various pathways. In this study, we evaluated the cultivation impacts on four predominant CH₄ production pathways, including acetate, carbon dioxide (CO₂), methylamines, and methanol, in a wetland and cultivated cropland in northeastern China. The results showed significant suppression of CH₄ production potential and the abundance of genes for all four methanogenic pathways in cropland. The consistency between CH₄ production and methanogenesis genes indicates the robustness of genomic genes in analyzing methanogenesis. The suppression effects varied across seasons and along soil profiles, mo

SUBMITTER: Wang N 

PROVIDER: S-EPMC9530824 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature