Evidence for fungal and chemodenitrification based N2O flux from nitrogen impacted coastal sediments

Predicting nitrous oxide emissions (N2O) remains difficult due to the numerous N2O production pathways. Here, the authors use incubations simulating high nitrate inputs to show that, in intertidal sediments, increases in N2O flux are largely mediated by fungal denitrification and/or chemodenitrification.