Table 2.
The change of single land use dynamics in the CNNR from 2000 to 2020 (km2).
| Land use types | 2000–2010 | 2010–2020 | 2000–2020 | |||
|---|---|---|---|---|---|---|
| Change value | Annual variation rate k2 (%) | Change value (km2) | Annual variation rate k2 (%) | Change value (km2) | Annual variation rate k2 (%) | |
| Water | 1.053 | 1.20 | 0.441 | 0.48 | 1.494 | 1.70 |
| Construction land | 2.255 | 24.37 | 4.467 | 24.45 | 6.721 | 72.65 |
| Grassland | − 4.871 | − 2.68 | 7.8039 | 4.80 | 2.933 | 1.61 |
| Cultivated land | 1.259 | 2.33 | − 12.196 | − 20.68 | − 10.937 | − 20.27 |
| Forest land | − 0.058 | − 0.12 | 1.679 | 3.47 | 1.621 | 3.33 |
| Unused land | 0.362 | 2.35 | − 2.194 | − 13.03 | − 1.832 | − 11.90 |