[Tagging] on the name of a tag for landcover

Johan Jönsson johan.j at goteborg.cc
Sat Aug 18 10:06:23 BST 2012


Martin Koppenhoefer <dieterdreist at ...> writes:
> ...
> IMHO in OSM it would make sense to have several tags describing
> generic properties instead of having one single value with a very
> specific class.
> 
> E.g. one tag might be vegetation=trees, shrubs, grass, "no", where
> "no" could follow the definition given by the FAO, i.e. "a total
> vegetative cover of less than 4% for at least 10 months of the year,
> or an absence of Woody or Herbaceous life forms and with less than 25%
> cover of Lichens/Mosses" ...
> 
> another tag might describe whether it is a water covered area or not, etc.
> 
To have a couple of keys instead of one key to describe how an area looks like 
could work.
For instance, a key for vegetation with a given set of values could help map a 
lot of areas. To have a key for the bare areas would complement that. Maybe 
surface could be used for those areas of stone, pavement, sand and soil.

It looks good to have complete sets of values, the four values for vegetation 
could theoretically be used to cover the whole planet but I think veg=no willl 
be implied on most bare areas.








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