Major Land Resource Area 077A
Southern High Plains, Northern Part
Accessed: 03/31/2023
Next steps
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1
Select an ecological site
Select an ecological site using the list, keys, photos, briefcase, or quick search option located on this page. -
2
Explore the ecological site description
Next, learn more about the selected ecological site and its characteristic dynamics by browsing the ecological site description and exploring alternative state and transition model formats.
Ecological site list
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i
Key Characteristics
- Greater than 20" depth over petrocalcic
- Not a closed depression
- NOT drainage way, concave shape, water "run-on"
- Surface texture NOT loamy, sand, or loamy fine sand
- Calcic horizon absent or below within 76 cm
- Surface textures of CL, SiCL, or SiC
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i
Key Characteristics
- Greater than 20" depth over petrocalcic
- Not a closed depression
- Drainage way, concave shape, water "run-on"
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i
Key Characteristics
- Greater than 20" depth over petrocalcic
- Not a closed depression
- NOT drainage way, concave shape, water "run-on"
- Surface texture NOT loamy, sand, or loamy fine sand
- Calcic horizon within 76 cm
- Light surface color
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i
Key Characteristics
- Greater than 20" depth over petrocalcic
- Closed depression
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i
Key Characteristics
- Greater than 20" depth over petrocalcic
- Not a closed depression
- NOT drainage way, concave shape, water "run-on"
- Surface texture NOT loamy, sand, or loamy fine sand
- Calcic horizon within 76 cm
- Dark surface color (mollic)
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i
Key Characteristics
- Less than 20" depth over petrocalcic
-
i
Key Characteristics
- Greater than 20" depth over petrocalcic
- Not a closed depression
- NOT drainage way, concave shape, water "run-on"
- Surface texture NOT loamy, sand, or loamy fine sand
- Calcic horizon absent or below within 76 cm
- Surface textures NOT CL, SiCL, or SiC (see also R077AY012TX)
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i
Key Characteristics
- Greater than 20" depth over petrocalcic
- Not a closed depression
- NOT drainage way, concave shape, water "run-on"
- Surface texture loamy, sand, or loamy fine sand
Ecological site map
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Zoom in to display soil survey map units for an area of interest, and zoom out to display MLRAs. Select a map unit polygon to view ecological sites correlated to that map unit. View a brief description of an ecological site by clicking on its name in the map popup. Soil survey correlations may not be accurate, and ecological site classification of a location should always be verified in the field. Each selection may require the transfer of several hundred KB of data.
Ecological site keys
Ecological site photos
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Briefcase
Add ecological sites and Major Land Resource Areas to your briefcase by clicking on the briefcase (
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Ecological sites
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.
