data forEffects of hummock-hollow microtopography on CO2 and CH4 emissions from sedge peatlands in the Changbai Mountains, Northeast China

This dataset supports the study “Microtopographic controls on CO₂ and CH₄ emissions in a sedge peatland of the Changbai Mountains, China.”It contains field measurements of CO₂ and CH₄ fluxes, soil temperature, water table depth, and soil physicochemical properties collected from 2017 to 2020 in a sedge (Carex schmidtii) peatland. The data were used to assess how hummock–hollow microtopography influences greenhouse gas emissions and carbon cycling.The dataset can be used for peatland carbon flux modeling, validation of process-based models, and comparative studies of microtopographic effects on GHG dynamics.