Natural Resources
Conservation Service
ecological site group 036XESG37
Semiarid Cool Shallow
Accessed: 09/01/2026
Ecological site group description
Key Characteristics
- <75% bedrock outcrop
- Ephemeral water or uplands
- Ustic or udic moisture regimes
- Cryic, frigid, or mesic temperature regimes
- Uplands
- Surface SAR <8
- Gypsum <5% and <10% subsurface
- Subsurface EC <8 and surface EC <4
- EC <1.5 surface and <2 subsurface
- Slope <35% or <40% surface rock
- Depth: 30-55cm
Provisional. A provisional ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model and enough information to identify the ecological site.
Physiography
This ESG is located on dissected dip slopes, hills, and ridges.
Climate
This ESG is characterized by the ustic moisture regime.
Vegetation dynamics
The modal ecological site for this ESG is F036XB133NM Pinyon-Utah juniper/skunkbush sumac.
Major Land Resource Area
MLRA 036X
Southwestern Plateaus, Mesas, and Foothills
Subclasses
- F036XA005NM–Riverine Riparian
- F036XA136NM–Pinyon-Utah juniper/Apache plume
- F036XB133NM–Pinyon-Utah juniper/skunkbush sumac
- R036XB007NM–Malpais
- R036XY114CO–Mountain Pinyon
- R036XY141CO–Shallow Loamy Mesa Top (pinyon-Utah juniper)
- R036XY315UT–Upland Shallow Loam (pinyon-Utah juniper)
- R036XY445CO–Steep Colluvial Slopes
- R036XY446CO–Southwestern Mountain (pinyon-Utah juniper)
Correlated Map Unit Components
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Stage
Provisional
Contributors
Curtis Talbot
Travis Nauman
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