Tag:boundary=forestry_compartment
 boundary = forestry_compartment
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A marked subdivision of an area of forestry landuse, which is used for planning, management & navigation 
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| Group: Boundaries |
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| Status: in use |
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| Wikidata |
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The tag boundary=forestry_compartment has been used for areas of land subdivided by the land operator for forestry management: these subdivisions are usually termed compartments. Also see the identical tag boundary=forest_compartment.
These units are marked on the ground by boundary markers (attached to trees or as posts or boundary stones) showing a unique identifier (ref=*) for the compartment. These markers are useful navigation aids.
How to map
Usually mapped as a area with closed way to represent the outline of the compartment, or sometimes as a multipolygon area, tagged boundary=forestry_compartment.
It is also necessary to map the actual areas covered by trees with landuse=forest and other areas of vegetation with appropriate tags such as natural=scrub, natural=wetland etc.
There will usually be tracks highway=track), paths, water features, and cutlines (man_made=cutline along the boundary with an occasional marker=* post, stone or plate. More rarely they might be fences (barrier=fence).
Add the identifier as ref=* and add a name if relevant. Some very old traditional compartments may only have a name.
It is not always possible to delineate the boundaries of the compartment on an initial survey. It may be possible to indivually map the surveyed boundary markers (marker=*) and assign the ref=* to these nodes. Rarely the center of the compartment is mapped as a node in this case.
Usually it will become apparent fairly quickly what the overall scheme for compartmentalisation of any given forest might be. For instance historic forests in the former Russian Empire often have a rectangular grid based on 1 verst.
FAO Definition
Taken from Guidelines for the management of tropical forests "A compartment is a permanent, geographically recognisable unit of forest land forming the basis for planning, prescription, implementation, monitoring and recording of forest operations. ... areas of forest that are to be managed for different purposes, or have clearly different functions or values, should be placed in separately defined compartments. Wherever practicable:
- "Boundaries should be geographically recognisable, such as rivers, streams, ridges and gullies. Permanent roads and trails may also be used.
- "Compartments should as far as possible comprise uniform forest types and be physically recognisable on the ground.
- "Numbering should be sequential, usually commencing at a forest headquarters.
- "A practical size range for many management situations is between 100 and 500 hectares."
Examples
Their size may depend on the nature of the forest products, but they will always reflect a size which represents a reasonable unit or work (selective felling, clearing brush wood, coppicing etc). From compartments already mapped on OSM a maximum size appears to be 4 sq. km, with traditional mediaeval coppice panels in England being only a few hectares.
France
Large forests, particularly those also used for leisure, tend to divided into compartments based around a regular network of "rides" and forest roads. In the ![[W]](/w/images/2/24/Wikipedia-16px.png "Wikipedia"){kind=small}
Forêt de Fontainebleau the network consists of "rides" radiating from certain points in the forest (carrousels). The compartment number is shown at each junction bounding the compartment, and regularly along its borders.
Compartment in a forêt domaniale. The sign gives the name of the forest and the compartment ref. The white paint mark is regularly painted along compartment borders to materialize it.
Paint markings along a compartment border; the marks are painted on the outside of the trees at the limits of the compartment, to indicate that you are entering the compartment. The compartment whose limits are indicated here is on the left of the picture.
Sign at the boundary of a forêt domaniale; those signs can also give the name of the track, as here.
Forestry compartment boundary; this one is typical, with a compartment ref sign, and a cutline along the boundary with painted dashes on the trees of both compartments.
Another compartment boundary: the sign indicated that it is the boundary of the #6 compartment of the Forêt communale de Denipaire. Once more, the painted dash indicates the boundary.
Another compartment boundary, at a corner: the boundary runs from the boundary stone to the tree, then goes on the right.
A boundary stone at a compartment tripoint: the three boundaries are indicated with paint.
Another compartment boundary stone; they can also be simply painted like this one, without explicitly drawing the boundary with painted lines. Compartment does not always have boundary stones either, not by any means.
Poland
Polish forest data imported from often has an identifier associated with each forest compartment of the form: "02-36-1-09-20 - -" (see 228402932
228402932. Only the latter two groups are used for marking compartments on the ground. The complete form is tagged with adr_les=*. The leading elements represent higher level units in the national forest administration.
Example: 600A/600B, a marker post in Białowieża Forest near Topiło represents two square compartments half a verst on each side.
Russia
- КЛ - колхозный лес : a collective farm forest
- СЛ - совхозный лес : state farm forest
- ГЛ - государственный лес : state forest
- ПП - пробная площадь: test area
Related tags
The close synonym boundary=forest_compartment is used about as often.
A small number of cases exist of boundary=forest used for compartments.
For the actual markers the tag marker=* is approved (e.g. marker=post or marker=stone). In the past man_made=boundary_marker, historic=boundary_stone and signpost=forest_compartment have also been used.
A plain ref=* has been used in some places, notably Poland, and often with imported data.
See also
- boundary=forest_compartment
- man_made=cutline A line cut in the forest for access or a fire break. Cutlines are often on compartment boundaries.