Fig. 7
From: Long-term annual soil nitrogen surplus across Europe (1850–2019)
Scatter plots between the N surplus for agricultural soil from various previous studies and our study for different countries and corresponding linear fits. The circles in each panel denote the average of 16 N surplus reconstructed in this study, whereas the bars show the standard deviation. (a) European countries during 2001–2003 (each point in this plot represent one country), (b) Denmark for each year in 1990–2010, (c) United Kingdom (UK) for 1990, 1995 and each year in 2000–2018, (d) Germany (DE) for each year in 1950–2015, (e) Aggregated values over the states of the former West Germany (DE-West) for each year in 1950–2015, (f) Aggregated values over the states of the former East Germany (DE-East) for each year in 1950–2015.
