From Fields to Asphalt: AI Reveils the Urbanisation of Flanders
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Between 1778 and 2022, the Flemish landscape underwent profound transformations. This is shown by a recent study by the Research Institute for Nature and Forest (INBO) under the direction of Luc De Keersmaeker, in which historical land use was analyzed with the help of artificial intelligence. Using the software OrthoSeg, three major map series were processed: the Ferraris map (1778), the Dépôt de la Guerre map (1873), and the MGI map (1969), each compared with the current land-use map of 2022.
The results speak for themselves. Heathland and dunes, which covered 12% of Flanders in the 18th century, shrank to less than 1%. Forests remained relatively stable at around 10%, but shifted significantly in location. Arable land declined from 60% to 30%, while grasslands more than doubled due to the so-called Agricultural Invasion. Built-up areas and gardens increased dramatically: from 2% in 1778 to 20% today. More than half of the coastal dunes disappeared because of urbanization and infrastructure.
Remarkably, only 20% of Flanders maintained the same land use over 250 years. Thanks to the historical LOKSTAT database, with municipal boundaries from 1850, the maps could be georeferenced with precision. This enabled reliable comparisons and provided unique insights into the evolution of the Flemish landscape.
The full report and interactive maps are available via INBO.