Natural Resources
Conservation Service
Major Land Resource Area 072X
Major Land Resource Area
Accessed: 04/20/2026
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
Ecological site map
Basemap
Find me
Find point
Full screen
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.
Briefcase
Add ecological sites and Major Land Resource Areas to your briefcase by clicking on the briefcase (
) icon wherever it occurs. Drag and drop items to reorder. Cookies are used to store briefcase items between browsing sessions. Because of this, the number of items that can be added to your briefcase is limited, and briefcase items added on one device and browser cannot be accessed from another device or browser. Users who do not wish to place cookies on their devices should not use the briefcase tool. Briefcase cookies serve no other purpose than described here and are deleted whenever browsing history is cleared.
Ecological sites
Major Land Resource Areas
Ecological site photos
Filters
R072XY102KS – Saline Subirrigated
R072XY103KS – Subirrigated
R072XY104KS – Saline Lowland
R072XY105KS – Chalk Fans
R072XY107KS – Sandy Lowland
R072XY108KS – Loamy Lowland
R072XY109KS – Rolling Sands
R072XY110KS – Choppy Sands
R072XY111KS – Sandy Plains
R072XY112KS – Shallow Limy
R072XY113KS – Gravelly Hills
R072XY114KS – Loess Breaks
R072XY101KS – Limy Slopes
R072XY115KS – Closed Upland Depression
R072XY116KS – Salt Flat
R072XY117KS – Tableland Swale
R072XY100KS – Loamy Tableland
Long term average mean annual precipitation
- No filter
- 40 – 50cm (16 – 20in)
- 50 – 60cm (20 – 24in)
Long term average frost free days
- No filter
- 110 – 130days
- 130 – 150days
- 150 – 170days
- No filter
- 400 – 600m (1300 – 2000ft)
- 600 – 800m (2000 – 2600ft)
- 800 – 1000m (2600 – 3300ft)
- 1000 – 1200m (3300 – 3900ft)
- 1200 – 1400m (3900 – 4600ft)
- 1400 – 1600m (4600 – 5200ft)
- 1600 – 1800m (5200 – 5900ft)
- No filter
- 0 – 3%
- 3 – 5%
- 5 – 10%
- 10 – 15%
- 15 – 20%
- 20 – 25%
- 25 – 30%
- 30 – 35%
- 35 – 40%
- 40 – 45%
- 45 – 50%
- 50 – 60%
- No filter
- Alluvial fan
- Canyon
- Depression
- Draw
- Dune
- Fan apron
- Flood plain
- Hill
- Interdune
- Knoll
- Plain
- Playa
- Ridge
- Rise
- Sand sheet
- Stream terrace
- Swale
- Terrace
- No filter
- Chalk
- Limestone and sandstone
- Limestone, unspecified
- No filter
- Residuum
- Slope alluvium
Soil surface texture
- No filter
- Clay
- Clay loam
- Coarse sand
- Fine sand
- Fine sandy loam
- Loam
- Loamy fine sand
- Loamy sand
- Sand
- Silty clay loam
- Silt loam
- Sandy loam
- Very fine sandy loam
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Ecological site keys
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*Saline subirrigated combined with subirrigated and saline lowland potentially no PESD
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*Gravelly terrace will be combined with Gravelly Hills for PESD
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*fsl=fine sandy loam
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*Shale Breaks-requires a field visit in central MLRA 72 KS
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.
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