Site Parameters for External Nutrient Input


Parameter Description Units Valid Values Default Values
EPNFA(1) Intercept value for determining the effect of annual precipitation on atmospheric N fixation (wet and dry deposition). g m-2 year-1 0.0 to 9999.0  
EPNFA(2) Slope value for determining the effect of annual precipitation on atmospheric N fixation (wet and dry deposition). Atmospheric N inputs are a linear function of annual precipitation The slope is the rate of N fixation per cm of precipitation. g m-2 year-1 cm-1 precip. 0.0 to 1.0  
EPNFS(1) Intercept value for determining the effect of annual precipitation on non-symbiotic soil N fixation; not used if NSNFIX = 1. g m-2 year-1 0.0 to 9999.0  
EPNFS(2) Slope value for determining the effect of annual precipitation on non-symbiotic soil N fixation; not used if NSNFIX = 1. g m-2 year-1 cm-1 precip. 0.0 to 1.0  
SATMOS(1) Intercept for atmospheric S inputs as a linear function of annual precipitation. g m-2 year-1 0.0 to 9999.0  
SATMOS(2) Slope for atmospheric S inputs as a linear function of annual precipitation. Atmospheric S inputs are a linear function of annual precipitation g m-2 year-1 cm-1 precip. 0.0 to 1.0  
SIRRI S concentration in irrigation water. mg l-1 0.0 to 1000.0  

See Also

Site Parameters
Model Parameters
About the Model Internal Parameterization