Chronic atmospheric reactive N deposition has breached the N sink capacity of a northern ombrotrophic peatbog increasing the gaseous and fluvial N losses

Abstract

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Contrasting potential for biological N2 fixation at three polluted central European Sphagnum peat bogs: combining the 15N2-tracer and natural-abundance isotope approaches

“…3 ) and ammonium (NH + 4 ), with a contribution of organic N and BNF -and N outputs -runoff dominated by dissolved, colloidal, and particulate N, and emissions of gaseous N forms, mainly nitrous oxide (N 2 O), nitric oxide (NO), and N 2 as products of denitrification (Sgouridis et al, 2021). The atmospheric lifetime of N 2 O, a potent greenhouse gas, is relatively long (> 100 years; Frolking et al, 2011).…”