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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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i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Clayey surface texture with slickensides in subsoil
-
i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Greater than 100 cm to bedrock
- Underlain by granite bedrock
- Ochric epipedon; clayey argillic horizon
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Greater than 100 cm to bedrock
- Not underlain by granite bedrock
- Mollic epipedon (dark colored surface horizon)
- Rock fragment content less than 15 percent by volume in surface horizon
- Red shale (hue of 5YR or redder) within 200 cm
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Greater than 100 cm to bedrock
- Not underlain by granite bedrock
- Ochric epipedon (light colored surface horizon)
- Parent material is residuum, slope alluvium, or alluvium
- Subsoil has slickensides and gleyed colors within 20 cm
-
i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from limestone, dolostone, or limestone conglomerate
- Slope gradient is greater than 20 percent and soil is shallow to bedrock
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from limestone, dolostone, or limestone conglomerate
- Slope gradient is less than 20 percent
- Depth to bedrock is less than 50 cm (shallow)
- Soil does not have an argillic horizon
- Rock fragment content is greater than 20 percent by volume
- Bedrock with greater than 20 degrees of dip and site is physiographically located in Arbuckle Mountains
-
i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is less than 50 cm (shallow)
- Mollic epipedon (dark colored surface horizon)
- Shallow to tilted rhyolite bedrock
-
i
Key Characteristics
- Soils forming in Holocene and late-Pleistocene-age alluvium on a flood plain, flood-plain step, or proximal stream terrace.
- Landform is a flood plain or flood-plain step with active channel cut and fill.
- Surface horizon is loamy or clayey
- Subsoil is loamy
-
i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from limestone, dolostone, or limestone conglomerate
- Slope gradient is less than 20 percent
- Depth to bedrock is less than 50 cm (shallow)
- Soil has an argillic horizon
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from limestone, dolostone, or limestone conglomerate
- Slope gradient is less than 20 percent
- Depth to bedrock is greater than 50 cm
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Less than 100 cm to bedrock
- Rock or pararock fragment content is less than 20 percent by volume
- Parent material is shale or sandstone without limestone cobbles
- Subsoil is clayey with slickensides; Pennsylvanian shale and sandstone bedrock
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Greater than 100 cm to bedrock
- Underlain by granite bedrock
- Mollic epipedon; loamy argillic horizon
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Greater than 100 cm to bedrock
- Not underlain by granite bedrock
- Mollic epipedon (dark colored surface horizon)
- Rock fragment content less than 15 percent by volume in surface horizon
- Lower solum has yellow colors (hue of 7.5YR or yellower)
- Soils forming in Holocene and late-Pleistocene-age alluvium on a flood plain, flood-plain step, or proximal stream terrace.
- Landform is a stream terrace
- Mollic epipedon
-
i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Less than 100 cm to bedrock
- Rock or pararock fragment content is greater than 20 percent by volume
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Less than 100 cm to bedrock
- Rock or pararock fragment content is less than 20 percent by volume
- Parent material is shale or sandstone without limestone cobbles
- Subsoil is loamy; tilted indurated sandstone bedrock
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Greater than 100 cm to bedrock
- Not underlain by granite bedrock
- Mollic epipedon (dark colored surface horizon)
- Rock fragment content greater than 15 percent by volume in the surface horizon
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Greater than 100 cm to bedrock
- Not underlain by granite bedrock
- Ochric epipedon (light colored surface horizon)
- Parent material is colluvium
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Greater than 100 cm to bedrock
- Not underlain by granite bedrock
- Ochric epipedon (light colored surface horizon)
- Parent material is residuum, slope alluvium, or alluvium
- Subsoil does not slickensides or gleyed colors within 20 cm
- Soils forming in Holocene and late-Pleistocene-age alluvium on a flood plain, flood-plain step, or proximal stream terrace.
- Landform is a stream terrace
- Ochric epipedon
- Sandy surface less then 100 cm
-
i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from limestone, dolostone, or limestone conglomerate
- Slope gradient is less than 20 percent
- Depth to bedrock is less than 50 cm (shallow)
- Soil does not have an argillic horizon
- Rock fragment content is greater than 20 percent by volume
- Limestone conglomerate bedrock with less than 20 degrees of dip
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is less than 50 cm (shallow)
- Ochric epipedon (light colored surface horizon)
- Rock fragment content is less than 20 percent by volume; lithic contact with tilted sandstone
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is greater than 50 cm
- Loamy surface texture
- Less than 100 cm to bedrock
- Rock or pararock fragment content is less than 20 percent by volume
- Parent material is red shale with limestone cobbles
-
i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is less than 50 cm (shallow)
- Mollic epipedon (dark colored surface horizon)
- Shallow to tilted platy shale and siltstone
-
i
Key Characteristics
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from limestone, dolostone, or limestone conglomerate
- Slope gradient is less than 20 percent
- Depth to bedrock is less than 50 cm (shallow)
- Soil does not have an argillic horizon
- Rock fragment content is less than 20 percent by volume
- Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
- Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
- Depth to bedrock is less than 50 cm (shallow)
- Ochric epipedon (light colored surface horizon)
- Rock fragment content is greater than 20 percent by volume; lithic contact with indurated Missippian-age sandstone
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
Arbuckle Uplift and Arbuckle Mountains
I.
Soils forming in residuum, slope alluvium, colluvium, or Pleistocene-age alluvium
A.
Soils forming in parent material derived mostly from limestone, dolostone, or limestone conglomerate
1
Slope gradient is greater than 20 percent and soil is shallow to bedrock
... R085BY026OK – Edgerock 38-42 PZ
2
Slope gradient is less than 20 percent
i.
Depth to bedrock is less than 50 cm (shallow)
b.
Soil does not have an argillic horizon
2)
Rock fragment content is greater than 20 percent by volume
a)
Bedrock with greater than 20 degrees of dip and site is physiographically located in Arbuckle Mountains
... R085BY026OK – Edgerock 38-42 PZ
b)
Limestone conglomerate bedrock with less than 20 degrees of dip
... R085BY083OK – Shallow Upland 38-42 PZ
B.
Soils forming in parent material derived mostly from granite, rhyolite, sandstone, conglomerate (noncalcareous), or shale
1
Depth to bedrock is less than 50 cm (shallow)
i.
Ochric epipedon (light colored surface horizon)
a.
Rock fragment content is less than 20 percent by volume; lithic contact with tilted sandstone
... R085BY083OK – Shallow Upland 38-42 PZ
b.
Rock fragment content is greater than 20 percent by volume; lithic contact with indurated Missippian-age sandstone
... R085BY098OK – Very Shallow 38-42 PZ
ii.
Mollic epipedon (dark colored surface horizon)
2
Depth to bedrock is greater than 50 cm
i.
Loamy surface texture
a.
Less than 100 cm to bedrock
1)
Rock or pararock fragment content is greater than 20 percent by volume
... R085BY076OK – Savannah 38-42 PZ
2)
Rock or pararock fragment content is less than 20 percent by volume
b)
Parent material is shale or sandstone without limestone cobbles
(1)
Subsoil is clayey with slickensides; Pennsylvanian shale and sandstone bedrock
... R085BY056OK – Loamy Upland 38-42 PZ
b.
Greater than 100 cm to bedrock
1)
Underlain by granite bedrock
2)
Not underlain by granite bedrock
a)
Mollic epipedon (dark colored surface horizon)
(1)
Rock fragment content greater than 15 percent by volume in the surface horizon
... R085BY076OK – Savannah 38-42 PZ
(2)
Rock fragment content less than 15 percent by volume in surface horizon
(b)
Lower solum has yellow colors (hue of 7.5YR or yellower)
... R085BY056OK – Loamy Upland 38-42 PZ
b)
Ochric epipedon (light colored surface horizon)
(2)
Parent material is residuum, slope alluvium, or alluvium
II.
Soils forming in Holocene and late-Pleistocene-age alluvium on a flood plain, flood-plain step, or proximal stream terrace.
A.
Landform is a flood plain or flood-plain step with active channel cut and fill.
1
Surface horizon is sandy ... R080AY068OK
2
Surface horizon is loamy or clayey
ii.
Subsoil is clayey ... R080AY045OK
B.
Landform is a stream terrace
2
Ochric epipedon
i.
Sandy surface greater than 100 cm ... R084AY018OK
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.
