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where, N is the nitrate concentration, S is the Soil Saturation and T is the temperature.
The model developed is unable to predict the denitrification rate (Rdn) (Figure 1.4); this is
perhaps because organic carbon is not considered as a factor in the development of the
equation. In addition as the model was empirically developed it is feasible only for areas
which are similar to the study area. The model is based on only five different sets of data
and is hence limited in its use.
Actual
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Colbourn (1992) - Denitrificaiton Rate : Predicted Vs. Actual
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Predicted
Figure 1.4 Predicted denitrification rates based on Equation 1.10.
1.5.4. Anderson (1998)
This is perhaps the least complicated method to determine the denitrification rate. Many
authors consider organic carbon to be the primary controlling factor of the denitrification
rate (Burford and Bermner, 1975; Knowles, 1982; Smith and Duff, 1988; Bradley et al.,
1992; Korom, 1992,Cosandey et al., 2003; Kamewada, 2007). In addition several authors
believe that the denitrification rate is directly proportional to the amount of organic
carbon (Burford and Bermner, 1975; Smith and Duff, 1988; Bradley et al., 1992). Hence,
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