The habitatmap_stdized.gpkg file is a processed version of the Natura 2000 habitat map of Flanders (De Saeger et al., 2018). This file is used as basis for designing monitoring schemes in Flanders. In the original habitat map, every polygon can consist of maximum 5 different vegetation types. This information is stored in the columns HAB1 , HAB2 ,..., HAB5 of the attribute table. The fraction of each vegetation type within the polygons is stored in the columns PHAB1 , PHAB2 , ..., PHAB5 . The different parts of the polygons are called 'patches'. The processed habitatmap_stdized.gpkg file is a GeoPackage that contains: habitatmap_polygons : a spatial layer with every habitat map polygon that contains a Natura 2000 habitat or regional important biotope (RIB) type. habitatmap_patches : a table in which every row corresponds with one patch. The processing of the habitatmap_patches table included following steps: A new variable was created to provide the patch number (1 to 5): patch_id . For some patches the ... :