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Low-intensity fire-derived pyrogenic carbon decouples methane and carbon dioxide production in aerobic and hypoxic layers of permafrost peatlands

Wildfire frequency is increasing in high-latitude permafrost peatlands, leading to the input of pyrogenic carbon (PyC) into the active layer. The effect of PyC on the critical greenhouse gases CH 4 and CO 2 production in the active layer (aerobic and hypoxic) is poorly constraine...