Major Land Resource Area 048A
Southern Rocky Mountains
Accessed: 12/07/2024
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1
Select an ecological site group
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2
Explore the ecological site group description
Next, learn more about the selected ecological site group and its characteristic dynamics by browsing the ecological site group description and exploring alternative state and transition model formats.
Ecological site group list
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i
Key Characteristics
- Additional water
- Ephemeral water
- Subsurface EC >4 - 28 soil components
- Additional water
- Ephemeral water
- Subsurface EC >4 - 28 soil components
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Key Characteristics
- Additional water
- Ephemeral water
- Subsurface EC <4
- Sand <50% & Clay >25% for surface and subsurface - 89 soil components
- Additional water
- Ephemeral water
- Subsurface EC <4 - 98 soil components
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i
Key Characteristics
- Uplands
- >75% bedrock outcrop - 527 soil components
- Uplands
- >75% bedrock outcrop - 527 soil components
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i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR >8, or Subsurface EC >8, or Surface EC >4 - 93 soil components
- Uplands
- <75% bedrock outcrop
- Surface SAR >8, subsurface EC >8, or surface EC >4, and soil moisture regime udic or ustic - 64 soil components
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i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR <8, or Subsurface EC <8, or Surface EC <4
- Gypsum <5% surface and <10% subsurface
- EC >1.5 surface or >2 subsurface - 42 soil components
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC>1.5 surface or >2 subsurface - 42 soil components
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i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR <8, or Subsurface EC <8, or Surface EC <4
- Gypsum <5% surface and <10% subsurface
- EC <1.5 surface or <2 subsurface
- slope >35% & >40% surface rock - 34 soil components
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- slope >35% & >40% surface rock AND soil moisture regime of Udic or Ustic - 34 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR <8, or Subsurface EC <8, or Surface EC <4
- Gypsum <5% surface and <10% subsurface
- EC <1.5 surface or <2 subsurface
- slope <35% or <40% surface rock
- Depth <30cm - 1211 soil components
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Depth <30 cm AND soil moisture regime of Udic or Ustic - 1170 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR <8, or Subsurface EC <8, or Surface EC <4
- Gypsum <5% surface and <10% subsurface
- EC <1.5 surface or <2 subsurface
- slope <35% or <40% surface rock
- depth: 30-55cm - 717 soil components
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Depth: 30-55 cm AND soil moisture regime of Udic or Ustic - 694 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR <8, or Subsurface EC <8, or Surface EC <4
- Gypsum <5% surface and <10% subsurface
- EC <1.5 surface or <2 subsurface
- slope <35% or <40% surface rock
- depth >55cm
- Rock >30% surface or >30% subsurface - 628 soil components
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Rock >30% surface or >30% subsurface AND soil moisture regime of Udic or Ustic - 621 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR <8, or Subsurface EC <8, or Surface EC <4
- Gypsum <5% surface and <10% subsurface
- EC <1.5 surface or <2 subsurface
- slope <35% or <40% surface rock
- depth >55cm
- Rock <30% surface and <30% subsurface
- Clay <30% surface and <35% subsurface
- sand >75% or texture is Loamy Sand or sandier in surface & subsurface - 21 soil components
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Soil not steep, rocky, or shallow
- Clay >30% surface or >35% subsurface
- sand >75% or texture is loamy sand or sandier in surface & subsurface - 21 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR <8, or Subsurface EC <8, or Surface EC <4
- Gypsum <5% surface and <10% subsurface
- EC <1.5 surface or <2 subsurface
- slope <35% or <40% surface rock
- depth >55cm
- Rock <30% surface and <30% subsurface
- Clay <30% surface and <35% subsurface
- sand <75% or texture is Loamy Fine Sand or finer in surface & subsurface
- Clay <20% or texture is Sandy Loam or sandier in surface - 993 soil components
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Soil not steep, rocky, or shallow
- Clay >30% surface or >35% subsurface
- sand <75% or texture is Loamy Fine Sand or finer in surface & subsurface
- Clay <20%or texture is Sandy Loam or sandier in surface - 993 soil components
-
i
Key Characteristics
- Additional water
- Perennial water
- Mineral soil surface - 68 soil components
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Key Characteristics
- Additional water
- Perennial water
- Organic soil surface - 40 soil components
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Key Characteristics
- Uplands
- <75% bedrock outcrop
- (Gypsum >5% surface or >10% subsurface) OR (surface SAR >8 or subsurface EC>8 or surface EC>4 AND soil moisture regime is aridic) - 56 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Slope, rock, or depth meeting one of the four criteria above, but with an Aridic soil moisture regime - 71 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Soil not steep, rocky, or shallow
- Clay >30% surface or >35% subsurface AND Udic soil moisture regime - 216 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Soil not steep, rocky, or shallow
- Clay >30% surface or >35% subsurface AND Ustic soil moisture regime - 370 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Soil not steep, rocky, or shallow
- Clay >30% surface or >35% subsurface AND Aridic soil moisture regime - 69 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Soil not steep, rocky, or shallow
- Clay >30% surface or >35% subsurface
- sand <75% or texture is Loamy Fine Sand or finer in surface & subsurface
- Clay >20% or texture is Fine Sandy Loam or finer in surface AND Udic soil moisture regime - 411 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Soil not steep, rocky, or shallow
- Clay >30% surface or >35% subsurface
- sand <75% or texture is Loamy Fine Sand or finer in surface & subsurface
- Clay >20% or texture is Fine Sandy Loam or finer in surface AND Ustic soil moisture regime - 343 soil components
-
i
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Soil not steep, rocky, or shallow
- Clay >30% surface or >35% subsurface
- sand <75% or texture is Loamy Fine Sand or finer in surface & subsurface
- Clay >20% or texture is Fine Sandy Loam or finer in surface AND Aridic soil moisture regime - 96 soil components
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Ecological site groups
Major Land Resource Areas
The Ecosystem Dynamics Interpretive Tool is an information system framework developed by the USDA-ARS Jornada Experimental Range, USDA Natural Resources Conservation Service, and New Mexico State University.