Nitrogen transformations and greenhouse gas emissions from a riparian wetland soil: An undisturbed soil column study

►A new experimental design is proposed for leaching assays to simulate nitrogen transformations in riparian wetland soil. ►Denitrification is the main process responsible for nitrate removal in the riparian zone of Salburua wetland. ►In Salburua, considerable amounts of greenhouse gases (N2O and CO2) are emitted to the atmosphere during denitrification.