Modelling Miscanthus yields with low resolution input data

A highly simplified model of crop yield is presented for the bioenergy crop Miscanthus, based on annual insolation while accounting for drought and frost kill. The method is intended for use with low resolution input data, particularly monthly meteorological data, which most existing models must interpolate to obtain daily data. The simplicity of the method improves tractability of results, reduces computing time, and makes parameterisation and analysis more straightforward. Comparison of the method with an existing energy use efficiency model demonstrates its effectiveness at predicting both mean yields and annual fluctuations.

► I consider the detail appropriate to model crop yields depending on input data. ► A highly simplified model is presented for low resolution data inputs. ► Daily time steps are avoided. ► Results are very similar to a daily time step model using monthly data. ► Simplicity is likely to benefit model sensitivity, parameterisation and analysis.