[Tagging] Produce tags for orchards

Tobias Zwick osm at westnordost.de
Sat Jul 29 14:04:35 UTC 2017


Thanks for your answers. It looks like it is pretty clear what is the
currently accepted tag for orchards then. As for the difference between
orchard and farmland - ignoring plantation for its missing documentation
and very rare use -, we identified the following key differences between
orchard and farmland which should be very clear:

- In an orchard, plants are cultivated which are perennial, the plants
  have continuance. Usually only the fruit of the plants are picked.
  From satellite imagery, orchards usually appear as systematically
  planted bushes/trees or rows of hedges separated by corridors (for
  machines/workers)

- Farmland grows plants that are harvested as a whole (i.e. with
  tractors), thus the actual crop can change during the years and
  even several times within a year (see crop rotation) as after the
  harvest, nothing is left from the plant. On satellite imagery,
  they usually appear as an acre, meadow (when fallow) or densely
  planted high grass/cereals.

Apart from that, I generally agree with those that answered that they
would prefer "produce" - for the same reasons. Especially for things
like oil_palms, banana_plants, coffee_plants, vanilla_plants, the
various types of berries etc. the "trees" key does not really fit.

Moving forward, would anyone think that "produce" is definitely the
wrong key to use for detailing on the produce/crop/type of orchards? (I
am not rallying to make the other two keys deprecated here, this is just
about which of the three keys the app should use to add a tag.)

Greetings
Tobias

P.S: Here is a list of different types of produce (of orchards aka
plantations) we identified. Currently mostly "translated" to the
"trees"-tagging:
https://github.com/rugk/crops-parser/blob/master/osmcrops.csv

On 27/07/2017 23:05, Christoph Hormann wrote:
> On Thursday 27 July 2017, Tobias Zwick wrote:
>>
>> Together with Roland Kr├╝ger, I am in the process of letting users of
>> StreetComplete, a surveyor app for OpenStreetMap, specify the produce
>> of orchards.[1]
>> We did a lot of research on which plants are grown on orchards [2]
>> and are now at the point where we need to decide how these should be
>> tagged.
>>
>> Unfortunately, there are *three* competing keys to describe basically
>> the same things (for orchards). Neither of these is deprecated, all
>> are in use: trees, crop and produce.
> 
> Taginfo is your friend to find out what tags are most commonly used.
> 
> It tells you on
> 
> https://taginfo.openstreetmap.org/tags/landuse=orchard#combinations
> 
> landuse=orchard + trees=*: 82k cases
> landuse=orchard + crop=*: 4.9k cases
> landuse=orchard + produce=*: 2.9 cases
> 
> and you can also see that genus=* and species=* are much more common 
> than crop=* or produce=*.
> 
> If you look at:
> 
> https://taginfo.openstreetmap.org/keys/crop#values
> 
> You can see that this tag is most commonly used for farmland.
> 
> If you look down the list you can also spot 945 cases of 
> crop=bananas,_papapyas,_mangos
> 
> https://taginfo.openstreetmap.org/tags/crop=bananas%2C_papapyas%2C_mangos
> 
> which - if you follow the link to overpass turbo - turn out to all be on 
> an island in Nicaragua in combination with landuse=orchard.
> 
> Safe to say that trees=* is the dominating method to tag what is grown 
> in an orchard.
> 
> Note the wiki is currently fairly unclear about the separation between 
> landuse=orchard and landuse=farmland.  On 
> 
> https://wiki.openstreetmap.org/wiki/Tag%3Alanduse%3Dorchard
> 
> it suggests landuse=plantation for fruit bushes which links to 
> landuse=plant_nursery which is clearly unsuited for this purpose.  This 
> seriously needs clarification.
> 




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