Major Land Resource Area 055C
Southern Black Glaciated Plains
Accessed: 12/21/2024
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i
Key Characteristics
- Other Landscape Position (Basin, Depression, Run-off and/or Run-in)
- Does the soil have a claypan (columnar structure) within 16 inches of the surface?
- No - Is the area in a basin or closed depression with no outlet
- Yes - Does the site pond water for 4 to 8 weeks in the spring or after heavy rain and have a high organic matter content?
- No - Does the site pond water until early summer and have a high organic matter content?
- Yes - Shallow Marsh
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i
Key Characteristics
- Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
- Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
- Yes - Are there visible salts (including sodium & gypsum) within 16 inches of the surface?
- No - Linear Meadow
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i
Key Characteristics
- Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
- Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
- No - Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 2 to 5 feet of the surface?
- Does the soil effervesce with acid (10% HCL) at or near (within 6 inches) the surface?
- No - Subirrigated
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i
Key Characteristics
- Other Landscape Position (Basin, Depression, Run-off and/or Run-in)
- Does the soil have a claypan (columnar structure) within 16 inches of the surface?
- No - Is the area in a basin or closed depression with no outlet
- Yes - Does the site pond water for 4 to 8 weeks in the spring or after heavy rain and have a high organic matter content?
- Yes - Wet Meadow
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i
Key Characteristics
- Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
- Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
- No - Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 2 to 5 feet of the surface?
- Does the soil effervesce with acid (10% HCL) at or near (within 6 inches) the surface?
- Are there visible salts (including sodium & gypsum) within 16 inches of the surface?
- No - Limy Subirrigated
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i
Key Characteristics
- Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
- Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
- Yes - Are there visible salts (including sodium & gypsum) within 16 inches of the surface?
- Yes - Saline Lowland
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i
Key Characteristics
- Normal Landscape Position (Upland, slopes normally linear, except sandy/sands sites can have complex slopes)
- Dig a hole to 20 inches & is there a claypan (columnar structure) within 16 inches of the surface?
- No - What is the surface and subsoil texture? Clay, Silty Clay (>55% clay) Surface with clayey subsoil
- No - What is the surface and subsoil texture? Clay, Silty Clay (40-55% clay) or Loamy Surface with clayey subsoil.
- No - What is the surface and subsoil texture? Loam, Silt Loam, Silty Clay Loam, Clay Loam, Sandy Clay Loam, Very Fine Sandy Loam
- No -What is the surface and subsoil texture? Sandy Loam, Fine Sandy Loam, Loamy Very Fine Sand
- No - What is the surface and subsoil texture? Sand, Loamy Sand, Loamy Fine Sand
- Yes - Sands
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i
Key Characteristics
- Normal Landscape Position (Upland, slopes normally linear, except sandy/sands sites can have complex slopes)
- Dig a hole to 20 inches & is there a claypan (columnar structure) within 16 inches of the surface?
- No - What is the surface and subsoil texture? Clay, Silty Clay (>55% clay) Surface with clayey subsoil
- No - What is the surface and subsoil texture? Clay, Silty Clay (40-55% clay) or Loamy Surface with clayey subsoil.
- No - What is the surface and subsoil texture? Loam, Silt Loam, Silty Clay Loam, Clay Loam, Sandy Clay Loam, Very Fine Sandy Loam
- No -What is the surface and subsoil texture? Sandy Loam, Fine Sandy Loam, Loamy Very Fine Sand
- Yes - Sandy
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i
Key Characteristics
- Normal Landscape Position (Upland, slopes normally linear, except sandy/sands sites can have complex slopes)
- Dig a hole to 20 inches & is there a claypan (columnar structure) within 16 inches of the surface?
- No - What is the surface and subsoil texture? Clay, Silty Clay (>55% clay) Surface with clayey subsoil
- No - What is the surface and subsoil texture? Clay, Silty Clay (40-55% clay) or Loamy Surface with clayey subsoil.
- No - What is the surface and subsoil texture? Loam, Silt Loam, Silty Clay Loam, Clay Loam, Sandy Clay Loam, Very Fine Sandy Loam
- Yes - Loamy
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i
Key Characteristics
- Normal Landscape Position (Upland, slopes normally linear, except sandy/sands sites can have complex slopes)
- Dig a hole to 20 inches & is there a claypan (columnar structure) within 16 inches of the surface?
- No - What is the surface and subsoil texture? Clay, Silty Clay (>55% clay) Surface with clayey subsoil
- No - What is the surface and subsoil texture? Clay, Silty Clay (40-55% clay) or Loamy Surface with clayey subsoil.
- Yes - Clayey
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i
Key Characteristics
- Run-off Landscape Position (Upland, normally convex short slopes)
- Dig a hole to 20 inches & is there a root restricting layer within 10 inches of soil surface?
- No - Is there a root restricting layer within 10-20 inches of soil surface
- No - Does the soil effervesce with acid (10% HCL) at or near (within 6 inches) of the surface
- Yes - Thin Upland
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i
Key Characteristics
- Other Landscape Position (Basin, Depression, Run-off and/or Run-in)
- Does the soil have a claypan (columnar structure) within 16 inches of the surface?
- Yes - Is it a closed depression?
- No - Is there a claypan (columnar structure) within 4 inches of the surface?
- No - Claypan
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i
Key Characteristics
- Run-off Landscape Position (Upland, normally convex short slopes)
- Dig a hole to 20 inches & is there a root restricting layer within 10 inches of soil surface?
- No - Is there a root restricting layer within 10-20 inches of soil surface
- Yes - What is the root restricting layer?
- Gravel (greater than 15% by volume)-- Shallow to Gravel
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i
Key Characteristics
- Other Landscape Position (Basin, Depression, Run-off and/or Run-in)
- Does the soil have a claypan (columnar structure) within 16 inches of the surface?
- Yes - Is it a closed depression?
- No - Is there a claypan (columnar structure) within 4 inches of the surface?
- Yes - Thin Claypan
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i
Key Characteristics
- Run-off Landscape Position (Upland, normally convex short slopes)
- Dig a hole to 20 inches & is there a root restricting layer within 10 inches of soil surface?
- Yes - Very Shallow
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i
Key Characteristics
- Run-off Landscape Position (Upland, normally convex short slopes)
- Dig a hole to 20 inches & is there a root restricting layer within 10 inches of soil surface?
- No - Is there a root restricting layer within 10-20 inches of soil surface
- Yes - What is the root restricting layer?
- Bedrock (siltstone, shale, mudstone, sandstone, etc.)
- The soil does not effervesce with acid within 6 inches of the soil surface and the soil texture is in the Clayey family particle size.
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i
Key Characteristics
- Normal Landscape Position (Upland, slopes normally linear, except sandy/sands sites can have complex slopes)
- Dig a hole to 20 inches & is there a claypan (columnar structure) within 16 inches of the surface?
- No - What is the surface and subsoil texture? Clay, Silty Clay (>55% clay) Surface with clayey subsoil
- Yes - Dense Clay
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i
Key Characteristics
- Other Landscape Position (Basin, Depression, Run-off and/or Run-in)
- Does the soil have a claypan (columnar structure) within 16 inches of the surface?
- Yes - Is it a closed depression?
- Yes - Closed Depression
- Other Landscape Position (Basin, Depression, Run-off and/or Run-in)
- Does the soil have a claypan (columnar structure) within 16 inches of the surface?
- No - Is the area in a basin or closed depression with no outlet
- Yes - Does the site pond water for 4 to 8 weeks in the spring or after heavy rain and have a high organic matter content?
- No - Does the site pond water until early summer and have a high organic matter content?
- No - Does the site pond water year round in most years and have high organic matter content?
- No - All other closed depressions or basins that pond water briefly after snowmelt or heavy rain or abnormally wet years.
- Yes - Closed Depression
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i
Key Characteristics
- Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
- Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
- No - Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 2 to 5 feet of the surface?
- No - Does water flow into and over/through the site?
- Yes - Does it have flooding frequency?
- No-- What is the soil texture?
- Loam, Silt Loam, Silty Clay Loam, Clay Loam, Sandy Clay Loam, Very Fine Sandy Loam-- Loamy Overflow
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i
Key Characteristics
- Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
- Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
- No - Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 2 to 5 feet of the surface?
- No - Does water flow into and over/through the site?
- Yes - Does it have flooding frequency?
- No-- What is the soil texture?
- Clay, Silty Clay (40-55% clay) or Loamy Surface with clayey subsoil-- Clayey Overflow
-
i
Key Characteristics
- Run-off Landscape Position (Upland, normally convex short slopes)
- Dig a hole to 20 inches & is there a root restricting layer within 10 inches of soil surface?
- No - Is there a root restricting layer within 10-20 inches of soil surface
- Yes - What is the root restricting layer?
- Bedrock (siltstone, shale, mudstone, sandstone, etc.)
- Soil effervesces with acid (10% HCL) within 6 inches of the soil surface.
-
i
Key Characteristics
- Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
- Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
- No - Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 2 to 5 feet of the surface?
- Does the soil effervesce with acid (10% HCL) at or near (within 6 inches) the surface?
- Are there visible salts (including sodium & gypsum) within 16 inches of the surface?
- Yes - Saline Subirrigated
-
i
Key Characteristics
- Other Landscape Position (Basin, Depression, Run-off and/or Run-in)
- Does the soil have a claypan (columnar structure) within 16 inches of the surface?
- No - Is the area in a basin or closed depression with no outlet
- Yes - Does the site pond water for 4 to 8 weeks in the spring or after heavy rain and have a high organic matter content?
- No - Does the site pond water until early summer and have a high organic matter content?
- No - Does the site pond water year round in most years and have high organic matter content?
- Yes - Deep Marsh
-
i
Key Characteristics
- Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
- Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
- No - Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 2 to 5 feet of the surface?
- No - Does water flow into and over/through the site?
- Yes - Does it have flooding frequency?
- Yes - Loamy Floodplain
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Ecological site keys
Major Land Resource Area 55C
I.
Run-off Landscape Position (Upland, normally convex short slopes)
A.
Dig a hole to 20 inches & is there a root restricting layer within 10 inches of soil surface?
2
No - Is there a root restricting layer within 10-20 inches of soil surface
i.
No - Does the soil effervesce with acid (10% HCL) at or near (within 6 inches) of the surface
b.
No - See "Normal Landscape Site"
ii.
Yes - What is the root restricting layer?
b.
Bedrock (siltstone, shale, mudstone, sandstone, etc.)
1)
Soil effervesces with acid (10% HCL) within 6 inches of the soil surface.
... R055CY024SD – Shallow Limy
2)
The soil does not effervesce with acid within 6 inches of the soil surface and the soil texture is in the Clayey family particle size.
... R055CY017SD – Shallow Clay
II.
Normal Landscape Position (Upland, slopes normally linear, except sandy/sands sites can have complex slopes)
A.
Dig a hole to 20 inches & is there a claypan (columnar structure) within 16 inches of the surface?
1
Yes - See "Other Landscape Position"
2
No - What is the surface and subsoil texture? Clay, Silty Clay (>55% clay) Surface with clayey subsoil
ii.
No - What is the surface and subsoil texture? Clay, Silty Clay (40-55% clay) or Loamy Surface with clayey subsoil.
b.
No - What is the surface and subsoil texture? Loam, Silt Loam, Silty Clay Loam, Clay Loam, Sandy Clay Loam, Very Fine Sandy Loam
2)
No -What is the surface and subsoil texture? Sandy Loam, Fine Sandy Loam, Loamy Very Fine Sand
b)
No - What is the surface and subsoil texture? Sand, Loamy Sand, Loamy Fine Sand
III.
Run-in Landscape Position (Floodplain, Drainageways, etc., except depressions)
A.
Observe the soil profile to a depth of 60 inches. Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 0-2 feet of the surface and the site dominated by hydrophytes?
1
Yes - Are there visible salts (including sodium & gypsum) within 16 inches of the surface?
2
No - Is there evidence of a permanent water table (water table that persists longer than the wettest part of the growing season typically until the month of August) within 2 to 5 feet of the surface?
i.
Does the soil effervesce with acid (10% HCL) at or near (within 6 inches) the surface?
b.
Are there visible salts (including sodium & gypsum) within 16 inches of the surface?
ii.
No - Does water flow into and over/through the site?
a.
No - "See Other Landscape Position"
b.
Yes - Does it have flooding frequency?
2)
No-- What is the soil texture?
a)
Loam, Silt Loam, Silty Clay Loam, Clay Loam, Sandy Clay Loam, Very Fine Sandy Loam-- Loamy Overflow
... R055CY020SD – Loamy Overflow
b)
Clay, Silty Clay (40-55% clay) or Loamy Surface with clayey subsoil-- Clayey Overflow
... R055CY021SD – Clayey Overflow
IV.
Other Landscape Position (Basin, Depression, Run-off and/or Run-in)
A.
Does the soil have a claypan (columnar structure) within 16 inches of the surface?
1
Yes - Is it a closed depression?
i.
No - Is there a claypan (columnar structure) within 4 inches of the surface?
2
No - Is the area in a basin or closed depression with no outlet
i.
No - Rethink your position and start again
ii.
Yes - Does the site pond water for 4 to 8 weeks in the spring or after heavy rain and have a high organic matter content?
b.
No - Does the site pond water until early summer and have a high organic matter content?
2)
No - Does the site pond water year round in most years and have high organic matter content?
b)
No - All other closed depressions or basins that pond water briefly after snowmelt or heavy rain or abnormally wet years.
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