Effects of drainage and long-term tillage on greenhouse gas fluxes in a natural wetland: insights from microbial mechanisms.

ABSTRACT:

Background

The conversion of natural wetlands to agricultural land through drainage contributes to 62% of the global wetland loss. Such conversion significantly alters greenhouse gas (GHG) fluxes, yet the underlying mechanisms of GHG fluxes resulting from drainage and long-term tillage practices remain highly uncertain. In this study, we measured GHG fluxes of a natural reed wetland (referred to as "Wetland") and a drained wetland that used as farmland (referred to as "Dryland").

Results

The results demonstrated that annual cumulative N₂O and CO₂ fluxes in Dryland were 282.77% and 53.79% higher than those in Wetland, respectively. However, CH₄ annual cumulative fluxes decreased from 12,669.45 ± 564.69 kg·ha^- 1 to 8,238.40 ± 207.72 

SUBMITTER: Liu F 

PROVIDER: S-EPMC11881319 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature