Table 1 The area variation of different land use types in the study area from 1980 to 2019.
Land use types | 1980–1993 | 1993–2006 | 2006–2019 | |||
|---|---|---|---|---|---|---|
Fluctuation (km2) | Rate (%) | Fluctuation (km2) | Rate | Fluctuation (km2) | Rate | |
Dry land | − 73 | − 1.64 | − 1091 | − 25.03 | − 724 | − 22.16 |
Paddy field | 1431 | 1.74 | 1246 | 10.21 | − 38 | − 0.29 |
Forest land | − 62 | − 0.28 | − 325 | − 1.46 | 80 | 0.36 |
Grassland | − 87 | − 14.42 | − 66 | − 12.79 | − 262 | − 58.41 |
Construction land | 79 | 2.07 | 153 | 5.58 | 871 | 30.13 |
Water area | − 4 | − 0.32 | 43 | 3.17 | 54 | 3.86 |
Other land | − 38 | − 19.11 | 40 | 24.45 | 19 | 9.35 |