The data source <code>habitatmap_terr</code> is the further interpreted, terrestrial part of ' habitatmap_stdized ' (which, in turn, was derived from the raw data source ' habitatmap '). It is a GeoPackage that contains: <code>habitatmap_terr_polygons</code>: a spatial polygon layer in the Belgian Lambert 72 coordinate reference system (EPSG-code 31370 ); <code>habitatmap_terr_types</code>: a table with the types that occur in each polygon. This version of <code>habitatmap_terr</code> was derived from version '<code>habitatmap_stdized_2020_v1</code>' as follows: it excludes all polygons that are most probably aquatic habitat or RIB. These are the polygons for which all habitat or RIB types are aquatic. In the process, a distinction was also made between <code>2190_a</code> and <code>2190_overig</code>. There is no exclusion of aquatic types when these coexist with terrestrial types in the same polygon; it excludes types which most probably are no habitat or RIB at all. Those are the types where <code>code_orig</code> contains <code>"bos"</code> or is equal to <code>"6510,gh"</code> or <code>"9120,gh"</code>; it translates several main type codes into a corresponding subtype which they almost always represent: <code>6410</code> -> <code>6410_mo</code>, <code>6430</code> -> <code>6430_hf</code>, <code>6510</code> -> <code>6510_hu</code>, <code>7140</code> -> <code>7140_meso</code>, <code>9130</code> -> <code>9130_end</code>; it distinguishes types <code>rbbhfl</code> and <code>rbbhf</code>. See R-code in the GitHub repository 'n2khab-preprocessing' at commit 5e499f5 for its creation from the <code>habitatmap_stdized</code> data source. A reading function to return the data source in a standardized way into the R ...