2Evolution of forest areas Sample Clauses

2Evolution of forest areas. For IPGS data, it is possible to examine the evolution of forest areas (including coniferous and broad-leaved forests) in this area (Figure 13 (IPGS)). The congruent forest area between 1974 and 2004 data sets represent 6424 ha, while 558 ha have been deforested (mapped as forest in 1974 and not in 2004) and 1800 ha reforested (not mapped as forest in 1974 but mapped in 2004). This corresponds to an increase in forested areas of 19% in 30 years. Analysis of the CLC data sets (Figure 14), illustrates rather different trends as the forest area remains almost constant between 1990 and 2006 regardless of the forest type considered (broad-leaved forest, coniferous forest or both). Considering only coniferous and mixed forests, for example, 15,843 ha has remained wooded between 1990 and 2006, 518 ha have been deforested and 800 ha reforested in 16 years, which corresponds to less than 2% of deforestation. CRIGE data (Figure 15) do not show any deforestation between 1999 and 2006, while the area covered by broad-leaved, coniferous and traditional woodland has barely changed from 21,557 ha to 21,746 ha. According to IFN, the forests of the whole Alpes de Haute Provence have increased by 6 to 17% between 1985 and 2005/06 and the département is now covered by more than 45% of forest. Unchanged forest area Reafforestation area Deforestation area Unchanged forest area Reafforestation area Deforestation area Figure 14 Evolution of forest areas from 1990 to 2006 (CLC) Unchanged forest area Reafforestation area Deforestation area