The aim of this study was to understand soil carbon dioxide (CO2) efflux of three different urban wetlands and how pH and bulk density relate to soil CO2 efflux of each wetland. The three wetlands were bottomland, upland, and shrub/scrub. The study was conducted over a twenty week period using the Li-Cor 8100 “closed chamber” method to measure soil CO2 efflux. The findings show that the bottomland wetland efflux was significantly higher than the shrub/scrub and upland wetland. The pH of shrub/scrub was significantly higher than the upland. The bulk density of the bottomland was significantly lower than the other two wetland types. There was no significant relationship between pH and CO2 efflux, but there was a significant relationship between bulk density and CO2 efflux. The contribution of the study is how understanding soil CO2 efflux in urban wetlands can help to mitigate the effects of climate change.
Keywords: Wetland, Urban, Carbon Dioxide, pH, Bulk Density
Chappell, Christopher and Johnson, Andra
"Influence of pH and Bulk Density on Carbon Dioxide Efflux in Three Urban Wetland Types,"
Professional Agricultural Workers Journal:
Available at: http://tuspubs.tuskegee.edu/pawj/vol3/iss1/5