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. 2025 Mar 25;15:10306. doi: 10.1038/s41598-025-95047-1

Table 5.

Statistics of graph unit representing different changing types of cultivated land. (B, C, F, G, W and CO represent bare land, cultivated land, forest, grassland, water and construction land, respectively).

Period Type Count Area (km2) R (%)
1990–2000 G→C 9,745,035 8770.53 4.02
F→C 8,205,467 7384.92 3.38
W→C 1,073,502 966.15 0.44
B→C 521,788 469.61 0.22
CO→C 6194 5.58 0.003
C→G 9,035,549 8131.99 3.73
C→CO 2,914,713 2623.24 1.2
C→F 1,273,164 1145.85 0.53
C→W 419,943 377.95 0.17
C→B 94,637 85.17 0.04
2000–2010 G→C 5,702,631 5132.37 2.40
F→C 2,129,655 1916.69 0.90
W→C 529,596 476.64 0.22
B→C 161,324 145.19 0.07
CO→C 14,295 12.87 0.006
C→G 10,852,882 9767.59 4.57
C→CO 2,853,532 2568.18 1.20
C→F 2,860,296 2574.27 1.21
C→W 1,221,847 1099.66 0.52
C→B 112,596 101.336 0.05
2010–2020 G→C 10,151,681 9136.51 4.35
F→C 2,719,249 2447.32 1.16
W→C 368,920 332.03 0.16
B→C 792,673 713.41 0.34
CO→C 28,685 25.82 0.01
C→G 4,895,278 4405.75 2.10
C→CO 2,495,842 2246.26 1.07
C→F 2,226,726 2004.053 0.95
C→W 678,810 610.93 0.29
C→B 72,973 65.68 0.03