[Talk-us-massachusetts] Landuse Landcover

[Greg Troxel]

Bill Ricker <bill.n1vux at gmail.com> writes:

> The lack of both landuse and landcover tags for e.g. Boston is striking.
> "Urban Fabric" includes "Residential", which appears to only be applied to
> organized developments.

Urban Fabric is a bizarre word, because landuse=residential does not
imply urban.  I have tagged that on a lot of groups of residential
parcels, and a fair number of those are 80%+ tree landcover (in
reality).  I would have just called out Residential.

The MassGIS dataset has impervious-residential as a code for a lot of
things, but the city has a lot of mixed use by floor and that is hard to
model just because it is more complex and has a vertical dimension which
osm doesn't really handle well.  (Regular GIS thinks it is hard too of
course.)

> One could be forgiven for thinking there was no arable / commercial farm in
> the City of Boston, as for some reason it declines to render Allendale Farm
> until zoomed in - does it drop any categeory below 0.5% ?
> https://osmlanduse.org/#15.776085670738018/-71.14182/42.30705/0/

It might, and the math seems wrong.  zooming in one it shows farm as
0.8% and maybe that's right, but visually it is really there.
artificial vegetaged is said to be 49% and there is more of that than
farm, but not 50x more.

> The distinction between Allandale (3 a's instead of 2 a, 1 e!) Woods as
> Forest and Arboretum as Park=Artificial non ag Vegetated is an interesting
> choice, centering land*use* *qua *form of preservation and kind of
> stewardship as opposed to land*cover*, which ought to be the same for most
> of both parcels?

True, but more or less leisure=park implies manicured non-natural green
stuff.  In Stow, the two parks are mostly that, except for one forested
area in one of them.

MassGIS has "developed open space" as a landcover and that shows up for
people's lawns and parks.  Kind of funny that it they don't say "lawn"
but I guess it's more general, sort of "not natural but green".  Vs
scrub or grassland.

By all means add landuse=conservation, and leisure=nature_reserve if
it's open to hiking/walking in it.   Open space database can be helpful
to find out if there is a CR, in which case boundary=protected_area
applies too.


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