Table 2. Generic land-cover types, definitions, and percentage cover of each vegetation layer for each map used.

Generic land-cover type 1774 (Plan Terrier) Definition 1975 (Amandier
et al. 1984)
Definition 2000 (Inventaire Forestier National, 2006) Definition
Forests Chestnut forests Only Castanea sativa Chestnut forests Dense and open forests of Castanea sativa (tree layer > 2m = 25-100%; shrub and herbaceous layer < 2m = 0-100%) Chestnut forests Dense and open forests of Castanea sativa (tree layer > 2m = 40-100%)
Woodlands Others forests (Coniferous and broadleaf) Coniferous forests Dense and open forests of coniferous (tree layer > 2m = 25-100%; shrub and herbaceous layer < 2m = 0-100%) Coniferous forests Dense and open forests of coniferous (tree layer > 2m = 40-100%)
Beech forests Dense and open forests of Fagus silvatica (tree layer > 2m = 25-100%; shrub and herbaceous layer < 2m = 0-100%) Beech forests Dense and open forests of Fagus silvatica (tree layer > 2m = 40-100%)
Mixed forests Dense and open mixed forests of coniferous and undifferentiated broadleaf (tree layer > 2m = 25-100%; shrub and herbaceous layer < 2m = 0-100%) Mixed forests Dense and open mixed forests of coniferous and undifferentiated broadleaf (tree layer > 2m = 40-100%)
Riparian forests Dense and open riparian forests (tree layer > 2m = 25-100%; shrub and herbaceous layer < 2m = 0-100%)  
Undifferentiated broadleaf forests Dense and open undifferentiated broadleaf forests (tree layer > 2m = 40-100%)
Other broadleaf forests Dense and open forests of others broadleaf (tree layer > 2m = 25-100%; shrub and herbaceous layer < 2m = 0-100%) Other broadleaf forests Dense and open forests of others broadleaf (tree layer > 2m = 40-100%)
Shrublands/
grasslands
Shrublands/
grasslands
Shrublands and grasslands Shrublands Shrublands (tree layer > 2m = 0-25%; shrub layer < 2m = 0-100%; herbaceous layer = 0-25%) Shrublands Shrublands (tree layer > 2m = 0-40%)
Mixed shrublands/grasslands Mixed shrublands/grasslands (shrub and herbaceous layer < 2m = 25-100%) Mixed shrubland/grasslands Mixed shrublands/grasslands
Grasslands Grasslands (shrub layer < 2m = 0-25%; herbaceous layer = 25-100%) Grasslands Grasslands
Bare soils Bare soils, rocks, beach Bare soils Bare soils, rocks, beach
Cultivated areas Olive trees Cultivated olive trees Cultivated areas Orchards, vineyards, herbaceous cultures, and cultivated olive trees Cultivated areas Orchards, vineyards, herbaceous cultures, and cultivated olive trees
Cultivated areas Crop cultivations
Vineyards Vineyards
Urban areas Urban areas Urban areas Urban areas Urban areas, Outer-urban areas, gardens Urban areas Urban areas, Outer-urban areas, gardens