Calculation of a simplified reference factor for estimating the amount of maize used as cattle feed in the Weser-Ems Region

This data set is a supplementary material to the publication "Remote sensing-based long-term assessment of bioenergy policy impact on agricultural land cover change: A case study of biogas in the Weser-Ems region in Germany" (Beila et al., 2025). It contains the calculation of a simplified reference factor for estimating the amount of maize silage used as cattle feed in the Weser-Ems Region, including assumptions and references used for the calculation. In addition, the data set includes graphs illustrating the share of maize silage used for biogas production in different municipalities, and the change in the number of cattle between years 1999 to 2020 per municipality.