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Select an ecological site using the list, keys, photos, briefcase, or quick search option located on this page. -
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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.
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Viewing 20 of 21
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-
i
Key Characteristics
- Fort Worth Prairie
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Sandy surface texture or noncalcareous with loamy surface texture
- Clay loam, loam, or silty surface texture
- Not strongly effervescent within 40”
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Parent material is Comanche Peak Limestone
- Slope gradient is less than 12 percent
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Walnut Prairie (Parent material is Walnut formation)
- Less than 20” to limestone bedrock and/or petrocalcic horizon
- Greater than 10” to limestone or any depth to petrocalcic horizon
- Ochric epipedon and slope shape is convex
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Glen Rose Prairie (Parent material is Glen Rose formation)
- Slope gradient is less than 12 percent
- Less than 20” to limestone bedrock or petrocalcic horizon
- Ochric epipedon and slope shape is convex
- Fort Worth Prairie
- Landform is a ridge or hillslope (upland)
- Surface horizon is calcareous and matrix color of subsoil within 20” does not have a red hue
- Ochric epipedon and slope shape is convex
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Landform is a drainageway or stream terrace
- Slope shape is linear to concave or slope gradient is less than 3 percent
- Clayey surface texture
- Greater than 5 percent visible secondary carbonates within 40”
- Less than 5 percent visible secondary carbonates within 40”
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Walnut Prairie (Parent material is Walnut formation)
- Greater than 20” to limestone bedrock and/or petrocalcichorizon
- Less than 3 percent surface cover of stones and cobbles
- Clayey surface texture
- Greater than 5 percent visible secondary carbonates within 40”
- Less than 5 percent visible secondary carbonates within 40”
- Fort Worth Prairie
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Loamy or clayey surface texture
- Landform is a drainageway or stream terrace
- Slope shape is linear to concave or slope gradient is less than 3 percent
- Clayey surface texture
- Less than 5 percent visible secondary carbonates within 40”
- Fort Worth Prairie
- Landform is a ridge or hillslope (upland)
- Surface horizon is calcareous and matrix color of subsoil within 20” does not have a red hue
- Mollic epipedon
- Greater than 20” to limestone bedrock
- Clayey surface texture
- Calcic horizon within 40”
- Calcic horizon greater than 40” if present
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Landform is a flood plain or flood-plain step
- Clayey surface texture
- Fort Worth Prairie
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Loamy or clayey surface texture
- Landform is a flood plain or flood-plain step
- Clayey surface texture
-
i
Key Characteristics
- Fort Worth Prairie
- Landform is a ridge or hillslope (upland)
- Surface horizon is calcareous and matrix color of subsoil within 20” does not have a red hue
- Mollic epipedon
- Greater than 20” to limestone bedrock
- Clayey surface texture
- Calcic horizon within 40”
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Parent material is Edwards Limestone
- Matrix color of subsoil within 20” has a red hue
- Greater than 20” to indurated limestone bedrock or a petrocalcic horizon
- Fort Worth Prairie
- Landform is a ridge or hillslope (upland)
- Surface horizon is noncalcareous or matrix color of subsoil within 20” has a red hue
- Greater than 20” to limestone bedrock
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Landform is a flood plain or flood-plain step
- Loamy surface texture
- Fort Worth Prairie
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Loamy or clayey surface texture
- Landform is a flood plain or flood-plain step
- Loamy surface texture
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Parent material is Edwards Limestone
- Matrix color of subsoil within 20” has a brown to black hue
- Greater than 10 percent surface cover of stones and cobbles
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Parent material is Edwards Limestone
- Matrix color of subsoil within 20” has a red hue
- Less than 20” to indurated limestone bedrock or a petrocalcic horizon
- Fort Worth Prairie
- Landform is a ridge or hillslope (upland)
- Surface horizon is noncalcareous or matrix color of subsoil within 20” has a red hue
- Less than 20” to limestone bedrock
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Parent material is Edwards Limestone
- Matrix color of subsoil within 20” has a brown to black hue
- Less than 10 percent surface cover of stones and cobbles
- Less than 20” to indurated limestone bedrockor a petrocalcic horizon
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Walnut Prairie (Parent material is Walnut formation)
- Less than 20” to limestone bedrock and/or petrocalcic horizon
- Greater than 10” to limestone or any depth to petrocalcic horizon
- Mollic epipedon
- Loamy surface texture
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Glen Rose Prairie (Parent material is Glen Rose formation)
- Slope gradient is less than 12 percent
- Less than 20” to limestone bedrock or petrocalcic horizon
- Mollic epipedon
- Loamy surface texture
- Fort Worth Prairie
- Landform is a ridge or hillslope (upland)
- Surface horizon is calcareous and matrix color of subsoil within 20” does not have a red hue
- Mollic epipedon
- Less than 20” to limestone bedrock
- Loamy surface texture
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Parent material is Comanche Peak Limestone
- Slope gradient is greater than 12 percent
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Parent material is Edwards Limestone
- Slope gradient is greater than 12 percent
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Walnut Prairie (Parent material is Walnut formation)
- Greater than 20” to limestone bedrock and/or petrocalcichorizon
- Greater than 3 percent surface cover of stones and cobbles
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Walnut Prairie (Parent material is Walnut formation)
- Less than 20” to limestone bedrock and/or petrocalcic horizon
- Less than 10” to massive oyster bed limestone and petrocalcic horizon is not present
-
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Landform is a drainageway or stream terrace
- Slope shape is linear to concave or slope gradient is less than 3 percent
- Clayey surface texture
- Greater than 5 percent visible secondary carbonates within 40”
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Walnut Prairie (Parent material is Walnut formation)
- Greater than 20” to limestone bedrock and/or petrocalcichorizon
- Less than 3 percent surface cover of stones and cobbles
- Clayey surface texture
- Greater than 5 percent visible secondary carbonates within 40”
- Fort Worth Prairie
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Loamy or clayey surface texture
- Landform is a drainageway or stream terrace
- Slope shape is linear to concave or slope gradient is less than 3 percent
- Clayey surface texture
- Greater than 5 percent visible secondary carbonates within 40”
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Landform is a drainageway or stream terrace
- Slope shape is convex or slope gradient is greater than 3 percent
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Parent material is Edwards Limestone
- Matrix color of subsoil within 20” has a brown to black hue
- Less than 10 percent surface cover of stones and cobbles
- Greater than 20” to indurated limestone bedrock or a petrocalcic horizon
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Walnut Prairie (Parent material is Walnut formation)
- Greater than 20” to limestone bedrock and/or petrocalcichorizon
- Less than 3 percent surface cover of stones and cobbles
- Loamy surface texture
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Glen Rose Prairie (Parent material is Glen Rose formation)
- Slope gradient is less than 12 percent
- Greater than 20” to limestone bedrock or petrocalcic horizon
- Fort Worth Prairie
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Sandy surface texture or noncalcareous with loamy surface texture
- Clay loam, loam, or silty surface texture
- Strongly effervescent within 40”
- Fort Worth Prairie
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Loamy or clayey surface texture
- Landform is a drainageway or stream terrace
- Slope shape is convex or slope gradient is greater than 3 percent
- Fort Worth Prairie
- Landform is a ridge or hillslope (upland)
- Surface horizon is calcareous and matrix color of subsoil within 20” does not have a red hue
- Mollic epipedon
- Greater than 20” to limestone bedrock
- Loamy surface texture
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Landform is a drainageway or stream terrace
- Slope shape is linear to concave or slope gradient is less than 3 percent
- Loamy surface texture
- Fort Worth Prairie
- Landform is a drainageway, stream terrace, flood plain or flood-plain step
- Loamy or clayey surface texture
- Landform is a drainageway or stream terrace
- Slope shape is linear to concave or slope gradient is less than 3 percent
- Loamy surface texture
-
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Walnut Prairie (Parent material is Walnut formation)
- Less than 20” to limestone bedrock and/or petrocalcic horizon
- Greater than 10” to limestone or any depth to petrocalcic horizon
- Mollic epipedon
- Clayey surface texture
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Glen Rose Prairie (Parent material is Glen Rose formation)
- Slope gradient is less than 12 percent
- Less than 20” to limestone bedrock or petrocalcic horizon
- Mollic epipedon
- Clayey surface texture
- Fort Worth Prairie
- Landform is a ridge or hillslope (upland)
- Surface horizon is calcareous and matrix color of subsoil within 20” does not have a red hue
- Mollic epipedon
- Less than 20” to limestone bedrock
- Clayey surface texture
-
i
Key Characteristics
- Lampasas Cut Plain
- Landform is a ridge or hillslope (upland)
- Travis Peak Prairie (Parent material is Travis Peak formation)
- Surface horizon is calcareous
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Ecological site keys
Lampasas Cut Plain and Forth Worth Prairie
I.
Lampasas Cut Plain
A.
Landform is a drainageway, stream terrace, flood plain or flood-plain step
1
Noncalcareous or sandy surface texture
2
Landform is a flood plain or flood-plain step
3
Landform is a drainageway or stream terrace
i.
Slope shape is convex or slope gradient is greater than 3 percent
... R085AY379TX – Loamy Slope 30-38
ii.
Slope shape is linear to concave or slope gradient is less than 3 percent
b.
Clayey surface texture
1)
Greater than 5 percent visible secondary carbonates within 40”
... R085AY279TX – Clayey Swale 30-38
2)
Less than 5 percent visible secondary carbonates within 40”
... R085AY177TX – Blackland 30-38" PZ
B.
Landform is a ridge or hillslope (upland)
1
Parent material is Edwards Limestone
ii.
Matrix color of subsoil within 20” has a red hue
a.
Less than 20” to indurated limestone bedrock or a petrocalcic horizon
... R085AY183TX – Redland 30-38" PZ
b.
Greater than 20” to indurated limestone bedrock or a petrocalcic horizon
... R085AY180TX – Deep Redland 30-38" PZ
iii.
Matrix color of subsoil within 20” has a brown to black hue
a.
Greater than 10 percent surface cover of stones and cobbles
... R085AY182TX – Low Stony Hill 30-38" PZ
b.
Less than 10 percent surface cover of stones and cobbles
1)
Less than 20” to indurated limestone bedrockor a petrocalcic horizon
... R085AY185TX – Shallow 30-38" PZ
2)
Greater than 20” to indurated limestone bedrock or a petrocalcic horizon
... R085AY379TX – Loamy Slope 30-38
2
Parent material is Comanche Peak Limestone
3
Walnut Prairie (Parent material is Walnut formation)
i.
Greater than 20” to limestone bedrock and/or petrocalcichorizon
a.
Greater than 3 percent surface cover of stones and cobbles
... R085AY188TX – Stony Clay Loam 30-38" PZ
b.
Less than 3 percent surface cover of stones and cobbles
2)
Clayey surface texture
a)
Greater than 5 percent visible secondary carbonates within 40”
... R085AY279TX – Clayey Swale 30-38
b)
Less than 5 percent visible secondary carbonates within 40”
... R085AY177TX – Blackland 30-38" PZ
ii.
Less than 20” to limestone bedrock and/or petrocalcic horizon
a.
Less than 10” to massive oyster bed limestone and petrocalcic horizon is not present
... R085AY189TX – Very Shallow 30-38" PZ
b.
Greater than 10” to limestone or any depth to petrocalcic horizon
2)
Mollic epipedon
4
Glen Rose Prairie (Parent material is Glen Rose formation)
i.
Slope gradient is less than 12 percent
b.
Less than 20” to limestone bedrock or petrocalcic horizon
2)
Mollic epipedon
5
Travis Peak Prairie (Parent material is Travis Peak formation)
ii.
Surface horizon is noncalcareous
a.
Gravel content of surface horizon is greater than 15 percent
b.
Gravel content of surface horizon is less than 15 percent
II.
Fort Worth Prairie
A.
Landform is a drainageway, stream terrace, flood plain or flood-plain step
1
Sandy surface texture or noncalcareous with loamy surface texture
i.
Sandy clay loam, sandy loam, or sandy surface texture
ii.
Clay loam, loam, or silty surface texture
2
Loamy or clayey surface texture
i.
Landform is a flood plain or flood-plain step
ii.
Landform is a drainageway or stream terrace
a.
Slope shape is convex or slope gradient is greater than 3 percent
... R085AY379TX – Loamy Slope 30-38
b.
Slope shape is linear to concave or slope gradient is less than 3 percent
2)
Clayey surface texture
a)
Greater than 5 percent visible secondary carbonates within 40”
... R085AY279TX – Clayey Swale 30-38
b)
Less than 5 percent visible secondary carbonates within 40”
... R085AY177TX – Blackland 30-38" PZ
B.
Landform is a ridge or hillslope (upland)
1
Surface horizon is noncalcareous or matrix color of subsoil within 20” has a red hue
2
Surface horizon is calcareous and matrix color of subsoil within 20” does not have a red hue
ii.
Mollic epipedon
a.
Less than 20” to limestone bedrock
b.
Greater than 20” to limestone bedrock
2)
Clayey surface texture
Ecological site photos
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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.
