Table 6 Land use transition and carbon stock response in urban areas from 2000 to 2020.
2000 | LULC | 2020 | |||||
|---|---|---|---|---|---|---|---|
Cultivated land | Woodland | Grassland | Waters | Construction land | Unutilized land | ||
Land use transfer (hm2) | Cultivated land | 1,634,129.01 | 144,315.81 | 244.98 | 37,128.60 | 115,060.05 | 41.58 |
Woodland | 67,898.88 | 821,037.51 | 255.24 | 220.32 | 2948.31 | 28.89 | |
Grassland | 1170.45 | 620.10 | 253.53 | 197.28 | 479.16 | 39.96 | |
Waters | 42,004.08 | 359.55 | 21.06 | 221,179.05 | 11,752.92 | 51.48 | |
Construction land | 598.41 | 19.44 | 2.97 | 2882.34 | 107,198.19 | 5.94 | |
Unutilized land | 284.13 | 0.00 | 83.07 | 320.31 | 759.06 | 110.07 | |
Changes in carbon stocks (t) | Cultivated land | 0.00 | 15,405,712.72 | 6075.50 | –1,435,391.68 | –8,032,342.09 | –3460.70 |
Woodland | –7,248,205.44 | 0.00 | -20,916.92 | –32,036.73 | –520,553.61 | –5488.52 | |
Grassland | –29,027.16 | 50,817.20 | 0.00 | –12,519.39 | –45,333.33 | –4316.88 | |
Waters | 1,623,877.73 | 52,282.17 | 1336.47 | 0.00 | –366,103.46 | –2294.46 | |
Construction land | 41,775.00 | 3432.33 | 280.99 | 89,784.89 | 0.00 | –79.71 | |
Unutilized land | 23,648.14 | 0.00 | 8974.05 | 14,276.22 | 10,186.59 | 0.00 | |
