Tag:landuse=forest

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Public-images-osm logo.svg landuse = forest
Forestry Road - geograph.org.uk - 215468.jpg
Description
Managed woodland or woodland plantation.
Used on these elements
may be used on nodes
should not be used on ways
may be used on areas
use on relations unspecified
Useful combination
See also
natural=wood
Status: Unspecified

Managed woodland or woodland plantation.

There are major differences in the way this tag & natural=wood are used by Openstreetmap users. Some use this tag for land primarily managed for timber production, others uses if for woodland that is in some way maintained by humans. This problem is explained below under Notes.

Tagging

landuse=forest applies to nodes and areas

Additional tags

  • name=* - name of the forest
  • leaf_type=broadleaved/needleleaved/mixed - describes the type of leaves.
  • leaf_cycle=deciduous/evergreen/mixed - describes the phenology of leaves.
  • wood=coniferous/deciduous/mixed - type of wood. This key is deprecated!
  • type=deciduous/evergreen/shrubs/mixed - for reasons why type is not desirable, see type=*
  • crop=* - Describes the type of crop

Notes

When tagging woodland, three approaches are advocated by different groups:

Firstly, forestry is commonly used in Openstreetmap to describe the use of land to grow trees for timber, paper, etc.

Approach 1

  • natural=wood is used to mark areas covered by trees.
  • landuse=forest is used to mark areas of land managed for forestry.
  • woodland=virgin is used to mark areas of virgin woodland unmanaged by man.

Approach 2

  • landuse=forest is used for maintained or managed woodland. This approach views most woodland as managed or maintained especially in areas such as Europe.
  • natural=wood is used for ancient or virgin woodland, with no forestry use.

Approach 3

  • wood=* is used to mark the presence or absence of trees.
  • natural=wood is used to mark areas of unmanaged forest. It implies wood=yes
  • landuse=forest is used to mark areas of managed forest. It implies wood=yes

Discussion

The use of these tags has become the subject of much debate due to inconsistent application, and wooly term usage.

Advantages of each approach

  • Approach 1
    • Tags appear consistent – having trees on is not a "land use".
    • Allows for woods to be marked in areas where other landuses exist (e.g. areas of trees in the middle of a quarry)
    • Does not require the tagger to make a distinction between managed and virgin woodland, which can be near impossible to make even for someone surveying the area.
    • Allows for tagging of areas of commercial forestry which are not currently wooded (landuse=forest + natural=scrub).
    • Is more consistent with tagging of other features such as reservoirs, which are tagged natural=water, along with their land use.
  • Approach 2
    • More commonly used after a bot was used to retag existing woodland this way.
  • Approach 3
    • As for Approach 1
    • Uses only existing tags.
    • Existing tagging largely retains its meaning.
    • Further landuses might be specified to distinguish between forest managed for decorative/leisure use, lumber/pulp production, or ecological improvement.

Rendering

Green area. When leaf_type=* wood=* is set, show little broad leaved or coniferous (or both) icons.

Possible rendering of woodland
Tag Rendering Comment Pictures
leaf_type=broadleaved Wood deciduous.png Broadleaved woodland. WaldAlfeld.jpg Aerial view of the Amazon Rainforest.jpg
leaf_type=needleleaved Wood coniferous.png Needleleaved woodland. Swiss National Park 131.JPG Pinus canariensis (Barlovento) 06 ies.jpg
leaf_type=mixed Wood mixed.png Mixed woodland. Mixed forest-Poland spring.jpg 09272008 BrightonUT.JPG

See also

Related OSM projects

Wiki for all environment and natural tags and projects Environmental_OSM