[Tagging] Forest parcels and national/municipal forest: how to map?

[Greg Troxel]

David Marchal <penegal at live.fr> writes:

> 1) forest parcels: some people use a boundary relation with
> boundary=forest_compartment, but this seems mainly used in Eastern
> Europe, so geographically limited; others map each parcel with

(We don't do this in the US, as far as I know; sounds like allotments
for forestry?)

I am guessing there is some biggish region used for forestry, and then
within it there are specific areas leased/etc. to individuals/companies?
I would tag landuse=forest around the whole thing.

Then, representing ownership/etc. within is really just like parcels for
houses, which so far OSM has declined to put in the db.

> 2) national/municipal forests: numerous forests, here in France, are
> municipal or national ones — the latter being called “forêt domaniale”
> —; many of them are labelled as such on road signs, and they are often
> named after this parameter — like “forêt domaniale de Dabo”, Dabo
> being the neighboring village —, so I think they should be mapped, but
> how? Should I, there again, use a boundary relation and tag it
> boundary=forest? This seems to be the wider-used solution and the most
> consistent one, but boundary=forest isn't in the uses of boundary
> relations documented on the wiki, and I read warnings on
> help.openstreetmap.org and MLs against such undocumented uses, so I
> prefer asking here: should I use this solution? Another?

I would do landuse=forest and then just put name= on the polygon.
Yes, this is a boundary, but no more so than the boundary around a
school or a church or a town park, and we don't use boundary for that.

We do have boundary=protected_area, but I think that's a mistake, and
we should instead tag the properties on the closed way to denote the
state of the inside.   But the notion of a boundary vs a property of the
inside of a polygon is semantically messy to start with.

One could argue that every area tag goo on a polygon could instead be
boundary=foo.  I don't think that's helpful.
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