[Tagging] The endless debate about "landcover" as a top-level tag

Marc Gemis marc.gemis at gmail.com
Wed Jun 13 09:36:37 UTC 2018


totally agree with that.
On Wed, Jun 13, 2018 at 11:32 AM <osm.tagging at thorsten.engler.id.au> wrote:
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> For me, the situation (as it should be, not as it is) is pretty clear.
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> Landuse describes how the land is used.
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> residential, industrial, commercial, retail, military, farmland, forestry, ...
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> None of these have a fixed implication of what's on the land.
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> Landcover describes what's on the land.
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> grass, scrub, trees, concrete, ...
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> None of these have a fixed implication if the landcover is natural or man made or managed.
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> Any point on the map has one actual landuse and one actual landcover.
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> You can have an area tagged as landuse=forestry and inside that area (or partially overlapping it) you have a mix of areas with landcover trees, grass, scrub, rock, whatever.
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> If you have some trees in a backyard, that's landcover=trees in landuse=residential.
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> If you have a forest that's just been completely logged and is just starting to regrow, that's landuse=forestry, landcover=scrub (probably, I'm sure someone can come up with a proper sequence of landcovers for an area that goes from trees to stumps and back to trees).
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> That landuse=forestry is what landuse=forest should be, but it has been completely burned by misuse to paint the map green and there is no way to recover from that really.
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> And landuse=grass doesn't make any sense at all. I'm not aware of any place where "grass" would be an appropiate land*use*.
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> If you are growing grass for animals, that's farmland or meadow. If you are growing it because you want to sell it as rollout grassm that's farmland.
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> If it's beside a road, that's either landuse=highway (if it's still part of the public right of way) or part of whatever landuse (residential, commercial, ...) describes the area outside the road.
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> If it's "municipal greenery" it's probably either landuse=highway (if it's still part of the public right of way) or landuse=recreation_ground.
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> No matter what, *grass* is not a land*use*. It's what happens to *cover* the land to fullfil some other *use*.
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> From: Martin Koppenhoefer <dieterdreist at gmail.com>
> Sent: Wednesday, 13 June 2018 19:24
> To: Tag discussion, strategy and related tools <tagging at openstreetmap.org>
> Subject: Re: [Tagging] The endless debate about "landcover" as a top-level tag
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> btw., we have only been discussing the term forest for landcover=trees, but there are other places where trees grow, e.g. orchards, groves, copses, bosks, thickets. We do have orchard as a tag, but we do not have anything specific for copses and groves (some might be mapped as orchards?). Thickets are generally mapped as natural=scrub? Bosk is a synonymon for grove?
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> What about the distinction "forest" and "wood"? Is a wood smaller and a forest denser?
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> Cheers,
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> Martin
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