Factors affecting nitric oxide and nitrous oxide emissions from ...

Table 5-11 Pearson correlation between measured soil variables and N2O-N fluxes at day 14. .......106
Table 5-12 Pearson correlation between measured soil variables and N2O-N fluxes at day 21. .......107
Table 5-13 Pearson correlation between measured soil variables and N2O-N fluxes at day 28. .......107
Table 5-14 Pearson correlation between measured soil variables and N2O-N fluxes at day 35. .......108
Table 5-15 Pearson correlation between measured soil variables and N2O-N fluxes for data sets
pooled over the experimental period. ..............................................................................108
Table 5-16 Pearson correlation between measured soil variables versus N2O-N :NO-N at each
individual sampling occasion and for the pooled data set. ..............................................113
Table 5-17 Pearson correlation between measured soil variables versus WFPS at each individual
sampling occasion and for the pooled data set. ...............................................................114
Table 5-18 The results of multiple linear-regression models for log10NO-N at different
temperature and moisture levels. .....................................................................................116
Table 5-19 The significance of variables contributing to the multiple regression models
developed for soil temperature and WFPS treatments.....................................................118
Table 5-20 Results of multiple linear regression model for log10NO-N (µg m -2 h -1 ) at individual
sampling occasions and pooled over time across all temperature and WFPS treatments.119
Table 5-21 The significance of variables contributing to the regression models developed at each
individual sampling day as well as for data pooled over all sampling days across all
temperature and WFPS treatments. .................................................................................120
Table 5-22 The results of multiple linear-regression models for N2O (µg N2O-N m -2 h -1 ) at
different temperature and moisture levels. ......................................................................122
Table 5-23 Soil variables significantly affecting the log10N2O-N fluxes during regression analyses
for temperature treatment. ...............................................................................................122
Table 5-24 Results of multiple linear regression model for log10N2O-N (µg m -2 h -1 ) at individual
sampling occasion across all soil temperature and WFPS treatments. ............................123
Table 5-25 The significance of variables contributing to the regression models developed for
log10N2O-N (µg m -2 h -1 ) ....................................................................................................124
Table 6-1 Net NH4 + -N depletion and net NO3 - -N accumulation rates at different urine-N treated
soils (n = 15)....................................................................................................................142
Table 6-2 The correlation coefficients (r) between NO-N flux and soil variables measured at
destructive sampling times. Data pooled over all urine-N rates. .....................................148
Table 6-3 The correlation coefficients (r) between NO-N flux pooled over all days, and various
soil variables at different urine-N rate treatments. ..........................................................149
Table 6-4 The correlation coefficients (r) between N2O-N flux and soil variables measured at
destructive sampling times. Data pooled over all urine-N rates. .....................................154
Table 6-5 The correlation coefficients (r) between N2O-N flux pooled over all days, and various
soil variables at different urine-N rate treatments. ..........................................................155
Table 6-6 Correlation of log10NO-N and various soil variables at different urine-N rates. .............158
Table 6-7 Correlation of log10NO-N and various soil variables at different sampling times...........158
Table 6-8 Results of multiple linear regression for log10NO-N (µg m -2 h -1 ) of urine treated soils at
individual sampling occasion ..........................................................................................159
Table 6-9 Results of multiple linear-regression for log10NO-N (µg m -2 h -1 ) at different urine-N
treatments.........................................................................................................................159
Table 6-10 Mean soil variables used in the calculation of HNO2, including the calculated
theoretical HNO2 value, for day 25. ................................................................................164
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