GROUP Classes

Detailed management and vegetation classes.
Codenamedescription
ac
annual cropsannual & herbaceous crops
af
agroforestryannual or perennial crops planted within non-agricultural perennials
aq
aquacultureaquatic livestock and/or crops
av
annual vegetationherbaceous regrowth vegetation
ba
barrenrock, snow, ice (naturally occurring, no exposed soil)
be
bare earthbare soil (across seasons, naturally occurring)
cw
closed woody mixwoody non-tree mixed (decid+everg) vegetation (>60%)
db
disturbed & debrisareas disturbed by human activity without consistent use
dn
deciduous needleleaf treesclosed canopy deciduous needleleaf trees (>60%)
dt
deciduous broadleaf treesclosed canopy deciduous broadleaf trees (>60%)
dw
deciduous woody cropsdeciduous woody perennial non-tree crops
eb
evergreen broadleaf treesclosed canopy evergreen broadleaf trees (>60%)
en
evergreen needleleaf treesclosed canopy evergreen needleleaf trees (>60%)
ew
evergreen woody cropsevergreen woody perennial non-tree crops (incl. >5 cm stem herbaceous)
ex
excavationactive excavations & mines
fb
farm buildingsnon-livestock, non-residential farm buildings
gh
greenhousegreenhouses & other horticultural structures
gr
turfgrassintensive turfgrass management (mowed, etc.)
ho
housinghuman dwellings
hp
household plantingshousehold & individually-managed ornamental plantings (yards)
hv
hydromorphic vegetationnon-crop hydromorphic herbaceous vegetation
ib
industrialindustrial buildings
in
infill & dumpingactive infill & dumping areas
ir
irrigationirrigation infrastructure, including ditches and tanks.
ls
livestockdomestic animal structures and manure storage
mc
mixed crop plotsmixed annual, woody & tree crops in small (<10m) plots
mt
mixed treesclosed canopy mixed (decid+everg) trees (>60%)
nb
non-industrialcommercial, governmental & other non-industrial buildings
nr
nurserywoody perennials for transplanting (saplings, orchard stock, etc)
ob
open wooded brushopen canopy trees (10-40%; woody/herbaceous understory)
od
deciduous tree cropsdeciduous tree crops (mature & immature)
oe
evergreen tree cropsevergreen tree crops (mature & immature)
os
other sealedartificial surfaces without raised & covered structures
ot
open mixed treesopen canopy mixed (decid+everg) trees (40-60%; woody/herbaceous understory)
ow
open woody mixopen canopy mixed (decid+everg) non-tree woody vegetation (10-60%)
pa
pasturepasture & permanent hayfields
pd
deciduous forestry plantingsimmature deciduous forest tree plantings (<60% tree cover)
pe
evergreen forestry plantingsimmature evergreen forest tree plantings (<60% tree cover)
pp
public plantingsinstitutionally-managed ornamental plantings (parks, medians etc.)
ri
hydromorphic cropsrooted hydromorphic crops (rice, etc.)
tg
tall graminoidsthicket of >1 m tall graminoids (>>90% cover)
tr
transportationroads, paths, bridges etc.
vr
variableuse and cover too temporally variable to classify
wa
waterwater surface
wd
closed woody deciduouswoody non-tree deciduous vegetation (>60%)
we
closed woody evergreenwoody non-tree evergreen vegetation (>60%)

Citation for AEM: Ellis E. C., H. Wang, H. Xiao, K. Peng, X. P. Liu, S. C. Li, H. Ouyang, X. Cheng, and L. Z. Yang. 2006. Measuring long-term ecological changes in densely populated landscapes using current and historical high resolution imagery. Remote Sensing of Environment 100(4):457-473.