The second NFI show's that these areas have increased to 1,692,700 ha in the Federation of Bosnia and Herzegovina and 1,525,800 ha in Republika Srpska from 2006 to 2009 (table 12.1). Of these forests, 1,028,700 ha or approximately 39.4 per cent can be classified as forests that are productive (table 12.1). This increase of forests is linked to the change of methodology in the forest inventory from taxation to a statistical approach, and to the fact that the forest area has increased due to natural regeneration and natural reforestation in the abandoned land.