Major Land Resource Area 057X
Northern Minnesota Gray Drift
Accessed: 12/21/2024
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i
Key Characteristics
- Soils formed in organic parent material
- None to occasional, very brief to long duration ponding
- Organic Material thickness 0-20 cm
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i
Key Characteristics
- Soils formed in organic parent material
- None to occasional, very brief to long duration ponding
- Organic material thickness 20-40 cm
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i
Key Characteristics
- Soils formed in organic parent material
- None to occasional, very brief to long duration ponding
- Organic material thickness greater than 40 cm
- Dominate pH is less than 4.5 within a depth of 130 cm
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i
Key Characteristics
- Soils formed in organic parent material
- None to occasional, very brief to long duration ponding
- Organic material thickness greater than 40 cm
- Dominate pH of 4.5 or more within a depth of 130 cm
- Forested vegetation concept
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i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site not in a floodplain
- Run-on position; footslopes, toe slopes, drainageways with gradients of 0-2%
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i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site in a floodplain- stream terraces, floodplain steps, alluvial flats, bar and channel topography; flooding occurs rarely to occasionally for brief duration
-
i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site not in a floodplain
- Run-off position; generally, short convex slopes; gradients >15%
- Loamy textured soil (loam, silt loam, silty clay loam, clay loam, sandy clay loam, sandy loam, fine sandy loam, very fine sandy loam) within a depth of 50 cm
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i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site not in a floodplain
- Run-off position; generally, short convex slopes; gradients >15%
- Sandy textured soil (sand, course sand, loamy sand, loamy course sand, fine sand, loamy fine sand) within a depth of 50 cm
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i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site not in a floodplain
- Neutral position; linear slopes with gradients of 1-15%
- Soils with dense till (root restriction) within a depth of 150 cm; both loamy and sandy textures; generally less than 35 percent rock fragments with a depth of 100 cm
-
i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site not in a floodplain
- Neutral position; linear slopes with gradients of 1-15%
- Soils without root restriction within a depth of 150 cm
- Fine textured clayey and silty soils (clay, silty clay, silty clay loam, silty loam, very fine sandy loam, loamy very fine sand) within a depth of 50 cm; underlying material generally fine or medium textured till; generally less than 5% rock fragments within a depth of 100 cm
-
i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site not in a floodplain
- Neutral position; linear slopes with gradients of 1-15%
- Soils without root restriction within a depth of 150 cm
- Loamy textured soils (loam, sandy loam, sandy clay loam, fine sandy loam) within a depth of 50 cm; underlying material generally medium textured till, sandy loam till or stratified parent materials; generally less than 35 percent rock fragments within a depth of 100 cm
-
i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site not in a floodplain
- Neutral position; linear slopes with gradients of 1-15%
- Soils without root restriction within a depth of 150 cm
- Medium textured soils (sandy loam, fine sandy loam, loam, very fine sandy loam, loamy very fine sand) within a depth of 50 cm; underlying material is coarse textured and generally has 5-35% rock fragments
-
i
Key Characteristics
- Soils formed in mineral parent material
- Forest-Influenced Upland Systems (no mollic epipedon present)
- Site not in a floodplain
- Neutral position; linear slopes with gradients of 1-15%
- Soils without root restriction within a depth of 150 cm
- Coarse textured soils (sand, coarse sand, loamy sand, loamy coarse sand, fine sand, or loamy fine sand) within a depth of 50 CM; underlying materials generally coarse textured; generally 0-35% rock fragments; includes sand capped glacial till
-
i
Key Characteristics
- Soils formed in organic parent material
- Frequently very long duration ponding
-
i
Key Characteristics
- Soils formed in organic parent material
- None to occasional, very brief to long duration ponding
- Organic material thickness greater than 40 cm
- Dominate pH of 4.5 or more within a depth of 130 cm
- Open vegetation concept (graminoid dominated)
-
i
Key Characteristics
- Soils formed in mineral parent material
- Prairie-influenced Upland Systems (mollic epipedon present)
- Soil is >20” deep - moderately deep to very deep
- Run-off position; gradients greater than 12%
-
i
Key Characteristics
- Soils formed in mineral parent material
- Prairie-influenced Upland Systems (mollic epipedon present)
- Soil is 0-20” deep - shallow soil; gravelly and very gravelly textures within a depth of 50 cm (>15% gravel)
-
i
Key Characteristics
- Soils formed in mineral parent material
- Prairie-influenced Upland Systems (mollic epipedon present)
- Soil is >20” deep - moderately deep to very deep
- Neutral position; generally linear slopes; well-drained or drier; gradients 1-12%
- Dominantly loamy and silty textures (loam, silt loam, silty clay loam, clay loam, silty clay loam, or very fine sandy loam) within a depth of 50 cm
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-
i
Key Characteristics
- Soils formed in mineral parent material
- Prairie-influenced Upland Systems (mollic epipedon present)
- Soil is >20” deep - moderately deep to very deep
- Run-in position (swale, footslope, toeslope); gradients of 0-3%
- Lower backslope and footslope position including upland swales
-
i
Key Characteristics
- Soils formed in mineral parent material
- Prairie-influenced Upland Systems (mollic epipedon present)
- Soil is >20” deep - moderately deep to very deep
- Run-in position (swale, footslope, toeslope); gradients of 0-3%
- Footslope and toeslope positions, and linear upland drainageways; flooding and ponding may occur
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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
MLRA 57 Site Key
I.
Soils formed in organic parent material
B.
None to occasional, very brief to long duration ponding
iii.
Organic material thickness greater than 40 cm
2
Dominate pH of 4.5 or more within a depth of 130 cm
II.
Soils formed in mineral parent material
A.
Prairie-influenced Upland Systems (mollic epipedon present)
i.
Soil is 0-20” deep - shallow soil; gravelly and very gravelly textures within a depth of 50 cm (>15% gravel)
... R057XY008MN – Shallow Gravelly Prairie
ii.
Soil is >20” deep - moderately deep to very deep
2
Neutral position; generally linear slopes; well-drained or drier; gradients 1-12%
a.
Dominantly loamy and silty textures (loam, silt loam, silty clay loam, clay loam, silty clay loam, or very fine sandy loam) within a depth of 50 cm
... R057XY010MN – Loamy Prairie
b.
Dominantly medium textures (sandy loam, fine sandy loam, or loamy very fine sand) within a depth of 50 cm
...
3
Run-in position (swale, footslope, toeslope); gradients of 0-3%
b.
Footslope and toeslope positions, and linear upland drainageways; flooding and ponding may occur
... R057XY014MN – Linear Meadow
B.
Forest-Influenced Upland Systems (no mollic epipedon present)
i.
Site in a floodplain- stream terraces, floodplain steps, alluvial flats, bar and channel topography; flooding occurs rarely to occasionally for brief duration
... F057XY016MN – Flood Plain Forest
ii.
Site not in a floodplain
1
Run-on position; footslopes, toe slopes, drainageways with gradients of 0-2%
... F057XY015MN – Wet Mixed Forest
2
Run-off position; generally, short convex slopes; gradients >15%
a.
Loamy textured soil (loam, silt loam, silty clay loam, clay loam, sandy clay loam, sandy loam, fine sandy loam, very fine sandy loam) within a depth of 50 cm
... F057XY017MN – Steep Loamy Upland Forest
b.
Sandy textured soil (sand, course sand, loamy sand, loamy course sand, fine sand, loamy fine sand) within a depth of 50 cm
... F057XY018MN – Steep Sandy Upland Forest
3
Neutral position; linear slopes with gradients of 1-15%
a.
Soils with dense till (root restriction) within a depth of 150 cm; both loamy and sandy textures; generally less than 35 percent rock fragments with a depth of 100 cm
... F057XY019MN – Dense Till Upland Hardwood Forest
b.
Soils without root restriction within a depth of 150 cm
1
Fine textured clayey and silty soils (clay, silty clay, silty clay loam, silty loam, very fine sandy loam, loamy very fine sand) within a depth of 50 cm; underlying material generally fine or medium textured till; generally less than 5% rock fragments within a depth of 100 cm
... F057XY020MN – Fine Upland Moist Hardwood Forest
2
Loamy textured soils (loam, sandy loam, sandy clay loam, fine sandy loam) within a depth of 50 cm; underlying material generally medium textured till, sandy loam till or stratified parent materials; generally less than 35 percent rock fragments within a depth of 100 cm
... F057XY021MN – Loamy Upland Moist Hardwood Forest
3
Medium textured soils (sandy loam, fine sandy loam, loam, very fine sandy loam, loamy very fine sand) within a depth of 50 cm; underlying material is coarse textured and generally has 5-35% rock fragments
... F057XY022MN – Sandy Upland Moist Mixed Forest
4
Coarse textured soils (sand, coarse sand, loamy sand, loamy coarse sand, fine sand, or loamy fine sand) within a depth of 50 CM; underlying materials generally coarse textured; generally 0-35% rock fragments; includes sand capped glacial till
... F057XY023MN – Dry Sandy Upland Coniferous Forest
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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.
