I found interesting the Corine definition for "3.3.3 Sparsely vegetated areas" [1] : it refers to various scenarios, and specify a percentage (10%-50%, or "less than 50%") for vegetation landcover.
In the similar American paper [2] mentioned in a previous post, we find for barren land (page 18): "less than one-third of the area has vegetation or other cover". I think that using a vegetation percentage (less than ...) to define the new tag should be the right choice; without this new tag, all is "scrub"... [1] https://land.copernicus.eu/user-corner/technical-library/corine-land-cover-nomenclature-guidelines/html/index-clc-333.html [2] https://pubs.usgs.gov/pp/0964/report.pdf <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Mail priva di virus. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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