Vegetation Classification and Mapping Project Report - USGS

G12
B9 Greasewood / New Mexico Saltbush Shrubland
Figure.G17..Ground.photo.for.map.class.B9,.
Greasewood./.New.Mexico.Saltbush.Shrubland
Location: This type occurred in the Puerco River corridor in areas with high salinity and periodic water
flow.
Photosignature: Sarcobatus vermiculatus shrubs occurred as bright green, large, smooth shrubs. The
spaces between the shrubs were often bright white, due to the high soil salinity. Sarcobatus vermiculatus
also appeared to have a sprawling pattern. This map class also had smaller, light green, speckled shrubs of
Atriplex obovata that were occasionally visible, depending on their contrast with the soil coloration.
Plant communities
Sarcobatus vermiculatus / Atriplex obovata Shrubland
Group map class Inter-Mountain Basins Greasewood Flat (1 of 3)
Management map class Greasewood Flats (1 of 3)
Macrogroup map class Inter-Mountain Basins Greasewood Flat (1 of 3)
Number of map units in park 42
Number of map units in park & environs 48
Number of map units less than 0.5 ha 6 (0.8% of total map class area)
Area of map class in park
186.5 ha / 460.8 ac
Total area of map class
212.3 ha / 524.6 ac
Proportion of land cover in park 0.5%
Proportion of map class in project environs 12.2%
Base map class accuracy user 41.9 (28.6 - 56.6), producer 81.3 (61.2 - 92.2)
Group map class accuracy user 47.1 (36.0 - 58.4), producer 85.7 (71.7 - 93.4)
Management map class accuracy user 47.1 (36.0 - 58.4), producer 85.7 (71.7 - 93.4)
Macrogroup map class accuracy user 47.1 (36.0 - 58.4), producer 85.7 (71.7 - 93.4)
Documentation for base map class
0 2003 relevés, 0 1996 relevés, 15 AA observation sites
Vegetation Classification and Distribution Mapping Report: Petrified Forest National Park
Figure.G18..Photosignature.for.map.class.B9,.
Greasewood./.New.Mexico.Saltbush.Shrubland.