Table 2 Nr loading and removal efficiency for different LUCC types.
LUCC | Year | Load_n (kg N ha−1) | EFF_n (%) |
|---|---|---|---|
Cropland | 1990 | 185.31 | 30 |
2000 | 216.43 | ||
2005 | 209.36 | ||
2010 | 174.20 | ||
2015 | 171.30 | ||
2020 | 158.78 | ||
Forest | 1990–2020 | 9.62 | 80 |
Shrub | 2.12 | 70 | |
Grassland | 10 | 40 | |
Water area | 8.5 | 5 | |
Barren | 10 | 5 | |
Developed | 174.68 | 5 |