[Imports] LINZ data import: Pastoral Lease layer

[Kyle Hensel]

I would say that they’re about 98% grazing land, perhaps 1% buildings and 1% stockyards (e.g. https://wiki.osm.org/File:Small-stockyard.jpg)
Bear in mind that some stations are really huge, >30km2

If there are any roads or lakes with the area, the multipolygon will exclude them.
The landcover is almost entirely high-country grassland. No forests, no industrial area, no residential areas besides one or two farmhouses.

You can download the data here: https://data.linz.govt.nz/layer/51572


From: Mateusz Konieczny via Imports<mailto:imports at openstreetmap.org>
Sent: Thursday, 23 September 2021 09:35
To: Imports<mailto:imports at openstreetmap.org>
Subject: Re: [Imports] LINZ data import: Pastoral Lease layer

Sorry for a missclick and sending a contentless message.

To clarify further:

What kind of land is included? Is it 100% grazing land, without
forests/residential areas/industrial areas?

For example would buildings similar
https://wiki.openstreetmap.org/wiki/File:St._Martin_im_Kofel_Bauernhof.jpg
be included in such areas?

Is there somewhere sample of this data?


Sep 22, 2021, 12:51 by matkoniecz at tutanota.com:
place=farm is documented as being for individual named farm
https://wiki.openstreetmap.org/wiki/Tag:place%3Dfarm

Such farm would include not only landuse=meadow but also buildings etc

If you import named meadows then place=farm is wrong

If you import areas that are not only meadows but also buildings etc
then landuse=meadow is wrong


Sep 21, 2021, 05:52 by K.y.l.e at outlook.co.nz:
Hi all,

The import of topographic data from Land Infomation New Zealand (LINZ) began in 2009 and is nearing completion, following a long pause.

One of the final layers to be imported is Pastoral Leases. These are huge areas of farmland used for grazing livestock.

Background infomation:

  *   https://en.wikipedia.org/wiki/Pastoral_lease
  *   https://en.wikipedia.org/wiki/Station_(New_Zealand_agriculture)
  *   https://www.linz.govt.nz/crown-property/crown-pastoral-land
  *   https://www.linz.govt.nz/crown-property/crown-pastoral-land/status-and-location-crown-pastoral-land

Following a discussion on the talk-nz mailing list, the proposed tagging is:
landuse=meadow
meadow=pasture
place=farm
name=*
ref:linz:pastoral_lease_id=*

Due to constraints with OSM’s API, if there are more than 2000 nodes in the area, we will split the area into a multipolygon with multiple outer ways.

For more infomation about the general LINZ data import, see https://wiki.osm.org/LINZ
That page also explains the purpose of tags like ref:linz:pastoral_lease_id.

Any feedback or comments would be appreciated.


Best regards,
Kyle





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