Table 1. The amount of forest lost or gained during each time period and the annual rate of change estimated using the formula by Puyravaud (2003). ∆T1 represents 1986–1996, and ∆T2 represents 1996–2001. Net forest cover includes all five forest types.

Forest cover type ΔT1 (km²) ΔT1/yr (%) ΔT2 (km²) ΔT2/yr (%)
Natural forest -179 -1.43 -12 -0.10
Reforestation 194 24.15 55 4.57
Charral -42 -2.25 -60 -8.93
Secondary forest 69 18.95 20 4.31
Riparian forest 36 5.21 48 8.66
Net forest cover 78 0.47 50 0.58