As my research place doesn’t have any or enough literature about the nutrient load and retention efficiency, i decided to use the biophysical data from the NatCap nutrient data base.
I downloaded the excel file and found that the “eff_n” is 0~99.
However in the InVEST 3.7.0.post37+ug.h1dfee03e6bf8 documentation, it says " eff_n (and/or eff_p ) (at least one is required): The maximum retention efficiency for each LULC class, a floating point value between zero and 1."
why the value of “eff_n” in the excel is over 1?
Is anyone tell me why?