Fig. 7. Transects 1 and 3 log-linear relationships of nitrate N concentration vs. 
15N-NO3. Slopes are indicative of denitrification enrichment of 15N of residual nitrate in some samples.
Fig. 7. Transects 1 and 3 log-linear relationships of nitrate N concentration vs. 15N-NO3. Slopes are indicative of denitrification enrichment of 15N of residual nitrate in some samples.