Natural Resources
Conservation Service
ecological site group 036XESG26
Arid Cool Shallow
Accessed: 09/13/2026
Ecological site group description
Key Characteristics
- <75% bedrock outcrop
- Ephemeral water or uplands
- Aridic moisture regime
- Cryic, frigid, or mesic temperature regimes
- Uplands
- Surface SAR <8
- Gypsum <5% surface 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 structural benches and ridges.
Climate
This ESG is characterized by the aridic moisture regime.
Vegetation dynamics
The modal ecological site for this ESG is R036XB007NM Malpais.
Major Land Resource Area
MLRA 036X
Southwestern Plateaus, Mesas, and Foothills
Subclasses
- R036XB004NM–Playa
- R036XB007NM–Malpais
- R036XB014NM–Shallow Loam
- R036XY111CO–Steep Shallow Clay Loam (pinyon-Utah juniper)
- R036XY112CO–Shallow Sandy Loam (pinyon-Utah juniper)
- R036XY113CO–Semidesert Juniper Loam
- R036XY114CO–Mountain Pinyon
- R036XY284CO–Loamy Foothills
- R036XY315UT–Upland Shallow Loam (pinyon-Utah juniper)
- R036XY445CO–Steep Colluvial Slopes
- R036XY446CO–Southwestern Mountain (pinyon-Utah juniper)
Correlated Map Unit Components
23735753, 23735633, 23735635, 23735840, 23735606, 23735585, 23735298, 23735458, 23735384, 23735578, 23734532, 23734972, 23734753, 23734640, 23734504, 23734807, 23734993, 23734493, 23734481, 23732027, 23732032, 23732164, 23732065, 23732081, 23732211, 23732088, 23732339, 23730892, 23730796, 23730843, 23730901, 23730803, 23730760, 23730567, 23730512, 23730702, 23730469, 23730633, 24316212, 24316600, 24316605, 24316239, 24316483, 24316484, 24316372, 24316374, 24316244, 24316503, 24316639, 24316898, 24316858, 24316867, 24316868, 24316879, 24317545, 24366569, 24324536, 24324868, 24324262, 24529713, 24529715, 24529716, 24529777, 24529911
Stage
Provisional
Contributors
Curtis Talbot
Travis Nauman
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