Carbon dioxide and methane fluxes from different surface types in a created urban wetland BG 2019-279

While there is a growing number of CO2 and CH4 studies from natural ecosystems, relatively few studies come from urban wetlands.Hence, this paper caught my attention as being a potentially important, new and novel contribution.What does the term urban wetlands mean and why may greenhouse gas exchange to and from it differ from other wetlands?To my mind, I would expect urban wetlands to be recycling water from urban uses and be subject to runoff from urban landscapes, which may have elevated levels of N applications, herbicides, oil runoff from roads etc. So. these factors may affect the redox ladder and alter methane fluxes compared to those from more remote wetlands.Let's see what the authors find.C1