| Land cover classes | Years | |||||||||
| 1999 | 2004 | 2010 | 2014 | 2021 | ||||||
| area (ha) | % | area (ha) | % | area (ha) | % | area (ha) | % | area (ha) | % | |
| Gallery forest | 217562.35 | 28.5 | 102592.77 | 13.4 | 97696.9 | 12.8 | 123860.24 | 16.2 | 0 | 0 |
| Herbaceous shrubby savannah | 336666.33 | 44.1 | 123753.93 | 16.2 | 20327.64 | 2.9 | 0 | 0 | 0 | 0 |
| Herbaceous tans | 0 | 0 | 159414.01 | 20.9 | 320978.06 | 42 | 93386.75 | 12.2 | 329581.7 | 43.1 |
| Fields and plantations | 100051.44 | 13.1 | 234809.78 | 30.7 | 225571.8 | 29.6 | 305118.63 | 40 | 286679.03 | 37.5 |
| Young fallow land | 32846.1 | 4.3 | 40077.07 | 5.2 | 0 | 0 | 50148.65 | 6.6 | 76235.23 | 10 |
| Mineralized soil and built-up area | 40621.42 | 5.3 | 82310.15 | 10.8 | 45034.8 | 6 | 143721.28 | 18.8 | 50922.34 | 6.7 |
| Bare soil | 0 | 0 | 0 | 0 | 26456.5 | 3.4 | 0 | 0 | 0 | 0 |
| Surface water | 36041.8 | 4.7 | 20848.51 | 2.8 | 25256.6 | 3.3 | 47566.32 | 6.2 | 20376.05 | 2.7 |
| Total | 763789.44 | 100 | 763806.22 | 100 | 763801.72 | 100 | 763801.87 | 100 | 763794.35 | 100 |