In the work of Bodik et al. (2009), the addition of crude glycerol into a denitrification process increased almost 2.5 fold the denitrification efficiency with a reduction of 5 ppm NO3/100 L of crude glycerol (Bodík et al. 2009).
Therefore a measure of the denitrifiers' potential ability to denitrify under optimal conditions yields more information about denitrifier functioning than in situ denitrification measurements where the denitrification rate is a product of the availability of denitrification substrates in the soil environment and not a measure of microbial community's functional potential.
In order to select traits appropriate for a denitrification FD calculation, we considered three pathways by which plants are known to influence denitrification via soil inputs: C quality, C quantity, and the redox status of the soil.
Maintenance of an anaerobic denitrification system in the obligate human pathogen, Neisseria gonorrhoeae, suggests that an anaerobic lifestyle may be important during the course of infection.
Here we explore temporal patterns of variability of denitrification potential in a restored wetland.
The extent of denitrification was a function of BOD leached from the solid waste.
Because DEA is a function of enzyme levels in soils, most ecologists studying denitrification have assumed that DEA is less sensitive to ambient levels of nitrate (NO3−) and soil carbon and thus, less variable over time than field measurements.
Nonetheless, as denitrification inevitably produces the greenhouse gases N2O and CO2 [2], a doubling of denitrification with a 3 degree temperature rise implies a potentially significant positive feedback on global warming [4].
Two models are employed: a prediction model based on mass balances to determine the needed denitrification rate; and an experimentally determined, empirical relational model describing the denitrification rate as a function of carbon addition rate.
Typically the microbial process of denitrification is viewed as simply a function of environmental factors (e.g. C, N, and redox status) in the biogeochemical model of denitrification [45].
