4.4 Vegetation

The representation of vegetation is important to the orienteer because it affects runnability and it also provides features for map reading.

COLOUR

The basic principle is as follows:


RUNNABILITY

White represents typically open runnable forest for the particular type of terrain. If no part of the forest is runnable then no white should appear on the map. The runnability depends on the nature of the forest (density of trees/brushwood and undergrowth -bracken, brambles, nettles, etc.) but does not take account of marshes, stony ground etc. which are shown by separate symbols.

runnab.gif - 27061,0 Kopen forest80-100%5 - 6:15 minutes/km
slow run50-80%6:15 - 10 minutes/km
difficult to run10-50%10 - 50 minutes/km
fight0-10%>50 minutes/km


401 Open land
Cultivated land, fields, meadows, grassland, etc. without trees, offering easy running.
Colour: yellow.
402 Open land with scattered trees
Meadows with scattered trees or bushes, with grass or similar ground cover offering easy running. Very small areas are shown as open land (401).
Colour: yellow 50% (16.75 lines/cm).
403 Rough open land
Heath, moorland, felled areas, newly planted areas (trees lower than ca. 1m) or other generally open land with rough ground vegetation, heather or tall grass. Symbol 403 may be combined with symbols 407 and 409 to show reduced runnability.
Colour: yellow 50% (40 lines/cm).
404 Rough open land with scattered trees
Where there are scattered trees in rough open land, areas of white (or green) should appear in the tone. Such an area may be generalised by using a regular pattern of large white dots in the yellow screen.
Colour: yellow 50% (40 lines/cm), white 50% (16.75 lines/cm).
405 Forest: easy running
Open forest where there is no hindrance to the runner.
Colour: white.
406 Forest: slow running
An area with dense trees (low visibility) which reduces running to ca. 50 - 80% of normal speed.
Colour: green 20% (40 lines/cm).
407 Undergrowth: slow running
An area of dense undergrowth but otherwise good visibility (brambles, heather, low bushes, and including cut branches) which reduces running to ca. 50 - 80% of normal speed. This symbol may not be combined with 406 or 408.
Colour: green 17% (13 lines/cm).
408 Forest: difficult to run
An area with dense trees or thicket (low visibility) which reduce running to ca. 10 - 50% of normal speed.
Colour: green 50% (40 lines/cm).
409 Undergrowth: difficult to run
An area of dense undergrowth but otherwise good visibility (brambles, heather, low bushes, and including cut branches) which reduces running to ca. 10 - 50% of normal speed. This symbol may not be combined with 406 or 408.
Colour: green 33% (27 lines/cm).
410 Vegetation: very difficult to run, impassable
An area of dense vegetation (trees or undergrowth) which is barely passable. Running reduced to ca. 0 - 10% of normal speed.
Colour: green 100%.
411 Forest runnable in one direction
When an area of forest provides good running in one direction but less good in others, white stripes are left in the screen symbol to show the direction of good running.
Colour: green.
412 Orchard
Land planted with fruit trees, bushes.
Colour: yellow 100% and green 25% (12 lines/cm).
413 Vineyard
The lines may be orientated to show the direction of planting.
Colour: yellow 100% and green.
414 Distinct cultivation boundary
The boundary of cultivated land when not shown with other symbols (fence, wall, path, etc.) is shown with a black line. A permanent boundary between different types of cultivated land is also shown with this symbol.
Colour: black.
415 Cultivated land
Cultivated land which is seasonally out-of-bounds due to growing crops may be shown with a black dot screen.
Colour: yellow 100%, black 5%.
416 Distinct vegetation boundary
A distinct forest edge or very distinct vegetation boundary within the forest.
Colour: black.
For practical reason it is allowed to enlarge the dots!
417 Indistinct vegetation boundary
Indistinct boundaries between areas of green, yellow or white are shown without a line. The edge of the area is shown only by the change in colour or dot screen.
418, 419 Special vegetation features
Symbols 418 and 419 can be used for special small vegetation features. The definition of the symbol must be given in the map legend.
Colour: green.