Table 2 General characteristics of the biophysical process models EPIC and BETHY/DLR.
From: How sensitive are estimates of carbon fixation in agricultural models to input data?
BETHY/DLR | EPIC | |
|---|---|---|
Abbreviation | Biosphere Energy Transfer Hydrology Model | Environmental Policy Integrated Climate |
References | ||
Model type | SVAT model | crop model |
Time step | Daily | Up to < 1 day |
Main simulation processes | GPP, NPP, NEP, evapotranspiration, soil water content | plant and crop growth, heat and water balance, wind and water erosion, nutrient cycling |
General formulation to compute NPP | NPP = GPP - autotrophic respiration | NPP = (yield+straw+roots)- (water content+non carbon fraction) |