Published October 3, 2024 | Version habitatmap_terr_2023_v1
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habitatmap_terr: the interpreted, terrestrial part of habitatmap_stdized

  • 1. Research Institute for Nature and Forest (INBO)

Description

The data source habitatmap_terr 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:

  • habitatmap_terr_polygons: a spatial polygon layer in the Belgian Lambert 72 coordinate reference system (EPSG-code 31370);

  • habitatmap_terr_types: a table with the types that occur in each polygon.

This version of habitatmap_terr was derived from version 'habitatmap_stdized_2023_v1' 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 2190_a and 2190_overig. 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_orig contains "bos" or is equal to "6510,gh" or "9120,gh";

  • it translates several main type codes into a corresponding subtype which they almost always represent: 6410 -> 6410_mo, 6430 -> 6430_hf, 6510 -> 6510_hu, 7140 -> 7140_meso, 9130 -> 9130_end;

  • it distinguishes types rbbhfl and rbbhf.

See R-code in the GitHub repository 'n2khab-preprocessing' at commit abf596e for its creation from the habitatmap_stdized data source.

A reading function to return the data source in a standardized way into the R environment is provided by the R-package n2khab.

Attributes of habitatmap_terr_polygons:

  • polygon_id

  • description_orig: polygon description based on the original type codes in the habitatmap data source

  • description: based on description_orig but with the interpreted type codes

  • source: states where description comes from: either habitatmap_stdized or habitatmap_stdized + interpretation

Attributes of habitatmap_terr_types:

  • polygon_id

  • type: the interpreted habitat or RIB type.

  • certain: TRUE when the type is certain and FALSE when the type is uncertain.

  • code_orig: original type code in raw habitatmap.

  • phab: proportion of polygon covered by type, as a percentage.

  • source: states where type comes from: either habitatmap_stdized or habitatmap_stdized + interpretation

Files

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Additional details

References

  • De Saeger S., Dhaluin P., Erens R., Guelinckx G., Hennebel D., Jacobs I., Kumpen M., Van Oost F., Spanhove T., Leyssen A., Oosterlynck P., Van Dam G., Van Hove M., Wils C. (red.) (2023). Biologische Waarderingskaart en Natura 2000 Habitatkaart, uitgave 2023. Rapporten van het Instituut voor Natuur- en Bosonderzoek 2023 (31). Instituut voor Natuur- en Bosonderzoek, Brussel. https://doi.org/10.21436/inbor.96375305.
  • De Saeger S., Oosterlynck P. & Paelinckx D. (2017). The Biological Valuation Map (BVM): a field-driven survey of land cover and vegetation in the Flemish Region of Belgium. Documents phytosociologiques - Actes du colloque de Saint-Mandé 2012 - Prodrome et cartographie des végétations de France - 2017 - Vol. 6: 372-382.