Biochar mitigates the peatland GHG dilemma under contrasting water table regimes: phase-dependent responses of CO2 and CH4 over a two-year study

water table manipulations alternatively with stable, recalcitrant amendments such as biochar substantially altered greenhouse gas fluxes, offering a promising strategy to mitigate emissions while adding to and maintaining peat carbon stocks and fluxes from lowland bare peat. Supplementary Information: The online version contains supplementary material available at 10.1007/s42773-026-00610-2.