Na+ Models Na+ Models NO3- Models NO3- Models
SSN MLR SSN MLR
Parameter Estimates Watershed Area 0.008 0.012 ** -0.03 -0.04 *
Slope 0.090 *** 0.104 *** - -
Elevation - - - -
Riparian Extent 0.100 ** 0.106 *** 0.32 0.29
TWI 0.651 * 0.813 *** 1.33 * 0.91 *
Tree cover -0.02 *** -0.018 *** - -
Shrub cover -0.115 *** -0.111 *** - -
NDMI - - -17.64 *** -17.37 ***
Burn extent - - - -
Variance Components (%) Predictor variables 45.0 54.4 36.0 51.4
Flow-connected distance 53.1 - 41.5 -
Total explained 98.1 54.4 77.5 51.4
Unexplained 1.9 45.6 22.5 48.6
Model Performance AIC -55.35 -34.29 210 212
RMSPE 0.165 0.205 1.00 1.07