What is the issue or question you have?
My issue is that when I run the model of NDR, the output seems wrong and therefore I don’t understand how to analyse my results. The results show different values for total export compared with the sum of the surface and subsurface export, see the picture below. The total export is lower than only the subsurface export, so also the surface and subsurface export, but I expect them to be equal because of the mass balance approach. Also, if I run the model without subsurface flow, I get different results for the total export… How can I solve this problem? Or what do I do wrong? I also added my csv file with the biophysical table, so you can see what I used for the subsurface proportion and the loads (1-nutrient efficiency) * the load (fertilizer + manure).
Please let me know and thanks in advance,
Vulpen
SF1withoutminus.csv (726.5 KB)
