Temporal Variability in Heterotrophic Carbon Dioxide Emissions From A Drained Tropical Peatland in Uganda

Our study measured heterotrophic carbon dioxide (CO 2 ) emissions in a drained peatland under potato cultivation south-western Uganda. Soil losses have not previously been reported for this land use, and our set out to capture the range temporal variation emissions, as well investigate relationships with key environmental variables. chamber-based emission measurements were taken over five days at four points time year daily monthly variability, including day night sampling any diurnal variations temperatures soil flux. Differences microtopography from mounding of soils beds drainage trenches had significant effect on rate Diurnal showed no difference or raised between night. More effects flux drivers, such water table depth, observed months, rather than hours days. There differences variables flux, depending if recently disturbed not. Area-weighted based gave mean annual factor 98.79 ± 1.7 t CO ha -1 y (± standard error) use.