Martin Koppenhoefer <dieterdreist@...> writes: > <snip> > in the second phase (they call it the modular/hierarchical phase) they do: > > I surface aspect > II macropattern > landform,climate > altitude,erosion,vegetation > soil type/lithology > > cheers, > Martin > > PS: The FAO document is really interesting, what do you think about a > tag "vegetation_structure" to be applied to vegetated areas like > meadow, scrub and forest with the suggested values "open" and > "closed"? This is inspired by this scheme: > http://www.fao.org/docrep/003/X0596E/X0596e13.gif > and could help to differentiate between woodlands and dense forests or > between thickets and shrubland. It could also be used on beaches (some > of them are bare, others have sparse vegetation, e.g. there could be > "vegetation_structure=open" and "vegetation_structure=none" (where > "none" could include also be very sparse vegetation, almost not > present) and in mountaineous regions (where there is often areas which > are mixed pebbles and grass). > > Another key to indicate the same could be "vegetation_density" with > values "dense" "sparse" (or "low"). > > Obviously this would also require to define that it is related to the > main vegetation form, i.e. the one in the "landuse" (or "landcover") > key. > I took a look at the FAO-scheme a while ago and came up with this example for a forest: -----Forest FAO-level: I) (SEMI) natural vegetation II) Woody III) Trees IV) closed V) broadleaved VI) deciduous
landcover=tree/shrub/grassland landcover=vegetation vegetation=tree/shrub/grassland tree:leaf_type=broad/needle tree:evergreen=yes/no tree:height=10m tree:distribution=open shrub:leaf_type=broad/needle shrub:evergreen=yes/no shrub:distribution=sparse I went with one main key having 3 values (tree/shrub/grassland), indicating existence of that type. main vegetation-type is not identified directly, instead one have to further tag each type with further info. From the distribution(or density) of each type a renderer could decide what graphics to use. /Johan Jönsson _______________________________________________ Tagging mailing list [email protected] http://lists.openstreetmap.org/listinfo/tagging
