[Tagging] About new landuses and superiority of cascading tag schemes

[Simon Wüllhorst]

> I propose to reduce inventing new landuses and start making
> subcategories whenewer possible.
>
> Recently I encountered landuse=plant_nursery, landuse=salt_pond,
> landuse=greenhouse_horticulture and landuse=mine.
>
> I think that all of them are overly specific and should be tagged as
> subcategories
> of more general landuses.

I fully agree.

The usage of subcategories (or more levels of cascading) is a great 
idea. Especially in case of farming landuse this idea could create a 
more structured tagging scheme. I think that a meadow should be tagged 
as landuse=farmland and farmland=meadow instead of landuse=meadow 
because it's only a variant of farmland (And maybe also an orchard 
should be tagged as landuse=farmland and farmland=orchard instead of 
landuse=orchard for the same reason).

Furthermore you idea of using subcategories for landuse purposes helped 
me to find a better tagging scheme for my own proposal (fieldmargins *1, 
I've already changed my proposal to use "cascading landuse tags").

Thanks for that.

Greetings
Simon / descilla

Links:
*1 http://wiki.openstreetmap.org/wiki/Proposed_features/fieldmargin