Forest age, Recording 1771-2001, update 2021

The forest age map (1771 - 2001) combines the data from the following 4 maps:1. The Ferrari cards (drafted between 1771 and 1778)2. The maps of Vandermaelen (made between 1846 and 1854)3. The 3rd edition of topographic maps at 1:20,000 (the majority was drawn up between 1910 and 1940)4. The current afforestation according to the forest mapping, version 2001.On these 4 maps only the distinction was made between forest and non-forest. The forest age map is optimally used on a scale of 1/50,000. The map is suitable for landscape studies, ecosystem visions, etc., but less so for detailed studies (management plans, EIAs, ... ). It can give a first impression of forest history in such cases, but it is strongly recommended to look at as much historical map material as possible in order to overcome the limitations of the forest age map, namely the geographical inaccuracy and the limited number of sources.