Initial values

If the soil initial organic content is given as a table (see switch Initial soil organic), the initial nitrogen values for all pools for each soil compartment are given from the parameter tables Initial organic Nitrogen. Initial CN ratios for all pools are then used to calculate the initial carbon contents (see parameter tables Initial organic CN ratios).

Else the soil nitrogen content is calculated from the parameters i_l1,N, i_l2,N, i_f,N, i_h,N, i_m,N, i_l1,d, i_l2,d, i_f,d, i_h,d, i_m,d, i_l1,exp, i_l2,exp, i_f,exp, i_h,exp and i_m,exp. Either the nitrogen will be distributed evenly in the soil profile (“Constant”), or it will decrease linearly from the top layer (“Linear”), or finally it will decrease exponentially from the top layer (“Exponential”). From the nitrogen contents in each pool the carbon contents in each pool can be calculated using the initial CN ratios which are given as parameters (i_l1,CN, i_l2,CN, i_f,CN, i_h,CN and i_m,CN).