On 15/3/20 4:55 pm, Joseph Eisenberg wrote:
One is a land use the other a land cover.
In practice they are both types of vegetation (grass + similar).
Mappers have to base their tagging off of what can be seen: that's the
type of vegetation (grass and other herbaceous plants), plus other
clues such as fences, the presence of grazing animals, or other signs
of mowing for hay or grazing.
Only the presence of grazing animal says 'landuse=meadow'.
Grass alone may be a field in crop rotation where it is left fallow.
The grass is not there once cut
Generallly there is still a couple of centimeters of grass leaves
remaining after mowing for hay. It looks like a mowed lawn, or the
rough of a golf course, not nearly as short as the fairway or green.
(Source: I used to work "bucking hay", lifting hay bales onto the
truck, during high school)
I have several generation of farmers in my family.
I too have maneuvered hay bales, driven tractors, helped milk cows etc etc.
On 3/15/20, Warin <61sundow...@gmail.com> wrote:
On 15/3/20 4:36 pm, Joseph Eisenberg wrote:
Unfortunately, a slight change to the description on the wiki will not
stop mappers from using landuse=meadow for a wide variety of features.
Usually these are 'armchair mappers'. What they typically see is land cover
not a land use.
Currently there is even a tag meadow=perpetual for "meadows which are
maintained by natural environmental conditions", which I would
normally tag as natural=grassland.
However, I do think that the description needs to say that it is
mainly covered in grass and similar non-woody plants
There would be nothing wrong with tagging both
landuse=meadow
with
natural=grassland (or similar)
One is a land use the other a land cover.
There are many areas of rangeland in semi-arid regions where the main
vegetations is scrub or dwarf scrub (bushes and dwarf shrubs), where
the primary landuse is grazing cattle or sheep. These areas are not
tagged as landuse=meadow, because they are not a meadow or pasture:
there is not much grass. Many of them can be tagged as natural=heath
or natural=scrub, describing the semi-natural vegetation.
Here sheep give way to cattle in the more arid regions.
The presence of mainly grass (or sedges, clover, other herbaceous
plants) is just as important as the presence of grazing or occasional
hay-cutting, to define a meadow or pasture.
But grass can be present without being a meadow.
The grass is not there once cut, the remains are stubble. Hence the word
'usually' can be employed?
- Joseph Eisenberg
On 3/15/20, Warin <61sundow...@gmail.com> wrote:
Hi,
The present description of landuse=meadow is;
An area of meadow or pasture: land primarily vegetated by grass and
other
non-woody plants, mainly used for hay or grazing.
That places the land cover before the land use. The emphases should be
on
the land use, the land use should be first?
Possibly a better description:
An area of meadow or pasture: land primarily used to produce hay or for
grazing of animals. Usually vegetated by grass and other non-woody
plants.
I am trying to get mappers not to use this for areas of grass land that
could be more appropriatly tagged natural=grassland.
Thoughts?
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