Natural Resources
Conservation Service
Major Land Resource Area 144A
Major Land Resource Area
Accessed: 04/16/2026
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Ecological sites
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Parent material origin
Parent material kind
Soil texture
Dichotomous Key
Outline (Multiple Leads)
Soils not permanently submerged in water
Soils permanently (>21hrs/day) submerged in water - Subaqueous Soils
Soils native, not anthropogenic (Not Human Altered Human Transported [HAHT]
Soils anthroprgenic (Human Altered Human Transported [HAHT] -Urban Soils
Soils without organic layer ("O" horizon) or organic layer < 40 cm (16") in thickness –Mineral Soils
Soils with organic layer ("O" horizon) ≥ 40 cm (16") in thickness – Organic Soils
Parent material of glaciated nature; glaciolacustrine, glaciofluvial, or glacial till (not alluvium)
Parent material Alluvium; landform a floodplain
Glaciated Parent material water-deposited (glaciofluvial, glaciolacustrine)
Glaciated parent material ice-deposited (glacial till)
Glaciated meltwater fluvial deposits (glaciofluvial/outwash)
Glaciated lakewater deposits (glaciolacustrine)
Soils well-drained to excessively well drained
Soils moderately well-drained to very poorly drained
Soils somewhat excessively drained to excessively drained
Soils well drained
Soils nutrient rich; higher base saturation - Semi-rich Dry Outwash
F144AY021MA – Semi-Rich Dry Outwash
F144AY021MA – Semi-Rich Dry Outwash
Soils not nutrient rich; lower base saturation – Dry Outwash
F144AY022MA – Dry Outwash
F144AY022MA – Dry Outwash
Soils nutrient rich; higher base saturation – Semi-rich Moist Outwash
F144AY025MA – Semi-Rich Moist Outwash
F144AY025MA – Semi-Rich Moist Outwash
Soils not nutrient rich; lower base saturation
Soils without eolian mantle (loess) – Well Drained Outwash
F144AY023CT – Well Drained Outwash
F144AY023CT – Well Drained Outwash
Soils with eolian mantle (loess) – Well Drained Eolian Outwash
F144AY024NY – Well Drained Eolian Outwash
F144AY024NY – Well Drained Eolian Outwash
Soils moderately well drained
Soils poorly to very poorly drained
Soils nutrient rich; higher base saturation – Semi-rich Moist Outwash
F144AY025MA – Semi-Rich Moist Outwash
F144AY025MA – Semi-Rich Moist Outwash
Soils not nutrient rich; lower base saturation
Surface texture silty – Moist Silty Outwash
F144AY026CT – Moist Silty Outwash
F144AY026CT – Moist Silty Outwash
Surface texture sandy – Moist Sandy Outwash
F144AY027MA – Moist Sandy Outwash
F144AY027MA – Moist Sandy Outwash
Soils poorly drained
Soils Very Poorly Drained
Soils nutrient rich; higher base saturation – Semi-rich Wet Outwash
F144AY029NY – Semi-Rich Wet Outwash
F144AY029NY – Semi-Rich Wet Outwash
Soils not nutrient rich; lower base saturation – Wet Outwash
F144AY028MA – Wet Outwash
F144AY028MA – Wet Outwash
Soils nutrient rich; higher base saturation – Semi-rich Very Wet Outwash
F144AY030NY – Semi-Rich Very Wet Outwash
F144AY030NY – Semi-Rich Very Wet Outwash
Soils not nutrient rich; lower base saturation – Very Wet Outwash
F144AY031MA – Very Wet Outwash
F144AY031MA – Very Wet Outwash
Soils well drained – Well Drained Lake Plain
F144AY017NH – Well Drained Lake Plain
F144AY017NH – Well Drained Lake Plain
Soils moderately well drained to very poorly drained
Soils moderately well drained and somewhat poorly drained – Moist Lake Plain
F144AY018NY – Moist Lake Plain
F144AY018NY – Moist Lake Plain
Soils poorly or very poorly drained
Soils poorly drained – Wet Lake Plain
F144AY019NH – Wet Lake Plain
F144AY019NH – Wet Lake Plain
Soils very poorly drained – Very Wet Coastal Lake Plain
F144AY020MA – Very Wet Coastal Lake Plain
F144AY020MA – Very Wet Coastal Lake Plain
Soils well drained to excessively drained
Soils moderately well to very poorly drained
Soils somewhat excessively to excessively drained
Soils well drained
Soils shallow (< 50cm) to bedrock – Shallow Dry Till Uplands
F144AY033MA – Shallow Dry Till Uplands
F144AY033MA – Shallow Dry Till Uplands
Soils moderately deep or deep to bedrock – Dry Till Uplands
F144AY032NH – Dry Till Uplands
F144AY032NH – Dry Till Uplands
Soils nutrient rich; higher base saturation
Soils not nutrient rich; lower base saturation
Soils shallow (< 50cm) to bedrock – Shallow Semi-rich Well Drained Till Uplands
F144AY035MA – Shallow Semi-Rich Well Drained Till Uplands
F144AY035MA – Shallow Semi-Rich Well Drained Till Uplands
Soils moderately deep or deep to bedrock – Semi-rich Well Drained Till Uplands
F144AY036NY – Semi-Rich Well Drained Till Uplands
F144AY036NY – Semi-Rich Well Drained Till Uplands
Soils moderately deep to densic contact -Well Drained Dense Till Uplands
F144AY007CT – Well Drained Dense Till Uplands
F144AY007CT – Well Drained Dense Till Uplands
Soils deep to contact – Well Drained Till Uplands
F144AY034CT – Well Drained Till Uplands
F144AY034CT – Well Drained Till Uplands
Soils moderately well drained
Soils poorly to very poorly drained
Soils nutrient rich; higher base saturation – Semi-rich Moist Till Uplands
F144AY038NY – Semi-Rich Moist Till Uplands
F144AY038NY – Semi-Rich Moist Till Uplands
Soils not nutrient rich; lower base saturation
Soils moderately deep to densic contact – Moist Dense Till Uplands
F144AY037MA – Moist Dense Till Uplands
F144AY037MA – Moist Dense Till Uplands
Soils deep to contact – Moist Till Uplands
F144AY008CT – Moist Till Uplands
F144AY008CT – Moist Till Uplands
Soils poorly drained
Soils very poorly drained
Soils nutrient rich; higher base saturation – Semi-rich Wet Till Depressions
F144AY039NY – Semi-Rich Wet Till Depressions
F144AY039NY – Semi-Rich Wet Till Depressions
Soils not nutrient rich; lower base saturation – Wet Till Depressions
F144AY009CT – Wet Till Depressions
F144AY009CT – Wet Till Depressions
Soils nutrient rich; higher base saturation – Semi-rich Very Wet Till Depressions
F144AY040NY – Semi-Rich Very Wet Till Depressions
F144AY040NY – Semi-Rich Very Wet Till Depressions
Soils not nutrient rich; lower base saturation – Very Wet Till Depressions
F144AY041MA – Very Wet Till Depressions
F144AY041MA – Very Wet Till Depressions
Soils excessively drained to well drained
Soils moderately well drained to very poorly drained
Soils excessively drained – High Floodplain Levee
F144AY006CT – High Floodplain Levee
F144AY006CT – High Floodplain Levee
Soils well drained - Sandy High Floodplain
F144AY010NH – Sandy High Floodplain
F144AY010NH – Sandy High Floodplain
Soils moderately well drained – Sandy Low Floodplain
F144AY012CT – Sandy Low Floodplain
F144AY012CT – Sandy Low Floodplain
Soils poorly to very poorly drained
Soils poorly drained
Soils very poorly drained – Very Wet Low Floodplain F144AY016MA
F144AY016MA – Very Wet Low Floodplain
F144AY016MA – Very Wet Low Floodplain
Soil texture coarse-sandy – Wet Sandy Low Floodplain
F144AY014CT – Wet Sandy Low Floodplain
F144AY014CT – Wet Sandy Low Floodplain
Soil texture coarse-silty – Wet Silty Low Floodplain
F144AY015NY – Wet Silty Low Floodplain
F144AY015NY – Wet Silty Low Floodplain
Soils formed in freshwater environments
Soils formed in salt/brackish environments
Wetland mineralogy nutrient rich; euic soil reaction class – Semi-rich Organic Wetlands
F144AY042NY – Semi-Rich Organic Wetlands
F144AY042NY – Semi-Rich Organic Wetlands
Wetland mineralogy nutrient poor; dysic soil reaction class – Acid Organic Wetlands … F144AY043MA
F144AY043MA – Acidic Organic Wetlands
F144AY043MA – Acidic Organic Wetlands
Tidally flooded daily – Tidal Low Marsh
R144AY002CT – Tidal Salt High Marsh mesic very frequently flooded
R144AY002CT – Tidal Salt High Marsh mesic very frequently flooded
Tidally flooded twice a month – Tidal High Marsh
R144AY001CT – Tidal Salt Low Marsh mesic very frequently flooded
R144AY001CT – Tidal Salt Low Marsh mesic very frequently flooded
HAHT material dredged
HAHT material not dredged; either methanogenic, combustic, spolic, or pauciartifactic, or artifactic
Soils excessively to moderately well drained - Dredgic Material
Soils somewhat poorly to poorly drained - Wet Dredgic Material
HAHT material methanogenic (landfill soils) – Landfills
HAHT material not methanogenic; either combustic, spolic, pauciartifactic & artifactic
HAHT material combustic (coal combustion)
HAHT material not combustic; either spolic or pauciartifactic & artifactic
Soils somewhat excessively drained to moderately well drained – Ashy
Soils somewhat poorly to poorly drained – Wet Ashy
Soils spolic (clean fill, <10% artifacts) - Clean Fill
Soils pauciartifactic & artifactic (>10% artifacts, mostly construction debris) – Artifactic
Soils formed in freshwater
Soils formed in salt and/or brackish water
Soils formed in submerged mineral deposits - Subaqueous Freshwater Mineral Deposits
R144AY045RI – Subaqueous Freshwater Mineral Deposits
R144AY045RI – Subaqueous Freshwater Mineral Deposits
Soils formed in submerged organic deposits - Subaqueous Freshwater Organic Deposits
R144AY046RI – Subaqueous Freshwater Organic Deposits
R144AY046RI – Subaqueous Freshwater Organic Deposits
Soils formed in submerged glacial deposits - Subaqueous Haline Glacial Deposits
R144AY049RI – Subaqueous Haline Slopes
R144AY049RI – Subaqueous Haline Slopes
Soils formed in marine or estuarine deposits
Soils formed in low energy environments (lagoon & bay bottoms, stream valleys, coves) - Subaqueous Haline Low Energy Basins
R144AY048RI – Subaqueous Haline Low Energy Basins
R144AY048RI – Subaqueous Haline Low Energy Basins
Soils formed in high energy environments
Landform a washover fan slope - Subaqueous Haline Slopes
R144AY049RI – Subaqueous Haline Slopes
R144AY049RI – Subaqueous Haline Slopes
Landform a washover fan flat or flood tidal delta flat - Subaqueous Haline Flats
R144AY050RI – Subaqueous Haline Flats
R144AY050RI – Subaqueous Haline Flats
Soils permanently (>21hrs/day) submerged in water
Soils not permanently submerged in water
Soils formed in freshwater
Soils formed in salt and/or brackish water
Soils formed in submerged organic deposits
R144AY046RI – Subaqueous Freshwater Organic Deposits
R144AY046RI – Subaqueous Freshwater Organic Deposits
Soils formed in submerged mineral deposits
R144AY045RI – Subaqueous Freshwater Mineral Deposits
R144AY045RI – Subaqueous Freshwater Mineral Deposits
Soils formed in submerged glacial deposits
R144AY047RI – Subaqueous Haline Glacial Deposits
R144AY047RI – Subaqueous Haline Glacial Deposits
Soils formed in marine or estuarine deposits
Soils formed in low energy environments (lagoon & bay bottoms, stream valleys, coves)
R144AY048RI – Subaqueous Haline Low Energy Basins
R144AY048RI – Subaqueous Haline Low Energy Basins
Soils formed in high energy environments
Landform a washover fan flat or flood tidal delta flat
R144AY050RI – Subaqueous Haline Flats
R144AY050RI – Subaqueous Haline Flats
Landform a washover fan slope
R144AY049RI – Subaqueous Haline Slopes
R144AY049RI – Subaqueous Haline Slopes
Soils with organic layer ("O" horizon) ≥ 16" in thickness
Soils without organic layer ("O" horizon) or organic layer < 16" in thickness
Soils formed in freshwater environments
Soils formed in salt/brackish environments
Wetland mineralogy nutrient poor; Dysic soil reaction class
F144AY043MA – Acidic Organic Wetlands
F144AY043MA – Acidic Organic Wetlands
Wetland mineralogy nutrient rich; Euic soil reaction class
F144AY042NY – Semi-Rich Organic Wetlands
F144AY042NY – Semi-Rich Organic Wetlands
Tidally flooded daily
R144AY001CT – Tidal Salt Low Marsh mesic very frequently flooded
R144AY001CT – Tidal Salt Low Marsh mesic very frequently flooded
Tidally flooded twice a month
R144AY002CT – Tidal Salt High Marsh mesic very frequently flooded
R144AY002CT – Tidal Salt High Marsh mesic very frequently flooded
Parent material alluvium; landform a floodplain
Parent material glacial till, glaciofluvial, or glaciolacustrine; landform not a floodplain
Soil depth < 20" to Bedrock
Soils execessively drained
F144AY006CT – High Floodplain Levee
F144AY006CT – High Floodplain Levee
Soils well, moderately well, somewhat poorly, poorly or very poorly drained
Soils hydric; drainage class somewhat poorly, poorly or very poorly drained
Soils not hydric; drainage class well, moderately well
Soils very poorly drained
F144AY016MA – Very Wet Low Floodplain
F144AY016MA – Very Wet Low Floodplain
Soils somewhat poorly or poorly drained
Soils well drained
Soils moderately well drained
Soil texture coarse-silty
Soil texture coarse-loamy
F144AY010NH – Sandy High Floodplain
F144AY010NH – Sandy High Floodplain
Soil texture coarse-silty
Soil texture coarse-loamy
F144AY012CT – Sandy Low Floodplain
F144AY012CT – Sandy Low Floodplain
Parent material glaciolacustrine
Parent material glacial till or glaciofluvial
Soils well drained
F144AY017NH – Well Drained Lake Plain
F144AY017NH – Well Drained Lake Plain
Soils moderately well, somewhat poorly, poorly or very poorly drained.
Soils moderately well and somewhat poorly drained
F144AY018NY – Moist Lake Plain
F144AY018NY – Moist Lake Plain
Soils poorly or very poorly drained
Soils poorly drained
F144AY019NH – Wet Lake Plain
F144AY019NH – Wet Lake Plain
Soils very poorly drained
F144AY020MA – Very Wet Coastal Lake Plain
F144AY020MA – Very Wet Coastal Lake Plain
Soils extremely to moderately acid
F144AY022MA – Dry Outwash
F144AY022MA – Dry Outwash
Soils moderately acid to moderately alkaline
F144AY021MA – Semi-Rich Dry Outwash
F144AY021MA – Semi-Rich Dry Outwash
Bedrock lithology limestone
Bedrock lithology granite, gneiss, or schist
Long term average mean annual precipitation
- No filter
- 100 – 120cm (39 – 47in)
- 120 – 140cm (47 – 55in)
—
cm
Long term average frost free days
- No filter
- 110 – 130days
- 130 – 150days
- 150 – 170days
- 170 – 190days
- 190 – 210days
—
days
- No filter
- 0 – 200m (0 – 700ft)
- 200 – 400m (700 – 1300ft)
- 400 – 600m (1300 – 2000ft)
- 600 – 800m (2000 – 2600ft)
- 800 – 1000m (2600 – 3300ft)
- 1000 – 1200m (3300 – 3900ft)
—
m
- 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%
- 60 – 70%
- 70 – 80%
—
%
- No filter
- Alluvial fan
- Alluvial flat
- Back-barrier flat
- Bay bottom
- Beach
- Beach ridge
- Bench
- Bog
- Coastal plain
- Cove
- Delta
- Depression
- Drainageway
- Drumlin
- Drumlinoid ridge
- Esker
- Flat
- Flood plain
- Flood-tidal delta
- Flood-tidal delta flat
- Flood-tidal delta slope
- Ground moraine
- Headland
- Hill
- Hillslope
- Interdrumlin
- Kame
- Knoll
- Lagoon
- Lake plain
- Lake terrace
- Lakebed
- Lakebed (relict)
- Mainland cove
- Marine terrace
- Marsh
- Moraine
- Mountain
- Natural levee
- Outwash delta
- Outwash fan
- Outwash plain
- Outwash terrace
- Plain
- Ridge
- Salt marsh
- Shoal
- Stream terrace
- Submerged mainland beach
- Swale
- Swamp
- Terminal moraine
- Terrace
- Tidal marsh
- Till plain
- Upland slope
- Valley
- Valley train
- Washover fan
- Washover-fan flat
- Washover-fan slope
- No filter
- Basalt
- Conglomerate, unspecified
- Dolomite (dolostone)
- Gneiss
- Granite
- Granite and gneiss
- Igneous and metamorphic
- Igneous and sedimentary
- Igneous, metamorphic and sedimentary
- Limestone and dolomite
- Limestone and sandstone
- Limestone, sandstone and shale
- Limestone, unspecified
- Metamorphic and sedimentary
- Metamorphic, unspecified
- Phyllite
- Quartzite
- Sandstone and shale
- Sandstone and siltstone
- Sandstone, unspecified
- Schist, mica
- Schist, unspecified
- Sedimentary, unspecified
- Shale and siltstone
- Shale, unspecified
- Siltstone, unspecified
- Slate
- No filter
- Alluvium
- Colluvium
- Coprogenic material
- Diamicton
- Eolian deposits
- Estuarine deposits
- Fluviomarine deposits
- Glaciofluvial deposits
- Glaciolacustrine deposits
- Glaciomarine deposits
- Lacustrine deposits
- Loess
- Marine deposits
- Organic, herbaceous material
- Organic, unspecified
- Outwash
- Till, ablation
- Till, basal
- Till, unspecified
Soil surface texture
- No filter
- Coarse sand
- Fine sand
- Fine sandy loam
- Loam
- Loamy coarse sand
- Loamy fine sand
- Loamy sand
- Loamy very fine sand
- Sand
- Silty clay loam
- Silt loam
- Sandy loam
- Very fine sandy loam
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Ecological site keys
144A PES Key
1a.
Soils not permanently submerged in water
2a.
Soils native, not anthropogenic (Not Human Altered Human Transported [HAHT]
3a.
Soils without organic layer ("O" horizon) or organic layer < 40 cm (16") in thickness –Mineral Soils
4a.
Parent material of glaciated nature; glaciolacustrine, glaciofluvial, or glacial till (not alluvium)
5a.
Glaciated Parent material water-deposited (glaciofluvial, glaciolacustrine)
6a.
Glaciated meltwater fluvial deposits (glaciofluvial/outwash)
7a.
Soils well-drained to excessively well drained
8a.
Soils somewhat excessively drained to excessively drained
9a.
Soils nutrient rich; higher base saturation - Semi-rich Dry Outwash
... F144AY021MA – Semi-Rich Dry Outwash
8b.
Soils well drained
10a.
Soils nutrient rich; higher base saturation – Semi-rich Moist Outwash
... F144AY025MA – Semi-Rich Moist Outwash
10b.
Soils not nutrient rich; lower base saturation
11a.
Soils without eolian mantle (loess) – Well Drained Outwash
... F144AY023CT – Well Drained Outwash
11b.
Soils with eolian mantle (loess) – Well Drained Eolian Outwash
... F144AY024NY – Well Drained Eolian Outwash
7b.
Soils moderately well-drained to very poorly drained
12a.
Soils moderately well drained
13a.
Soils nutrient rich; higher base saturation – Semi-rich Moist Outwash
... F144AY025MA – Semi-Rich Moist Outwash
13b.
Soils not nutrient rich; lower base saturation
12b.
Soils poorly to very poorly drained
15a.
Soils poorly drained
16a.
Soils nutrient rich; higher base saturation – Semi-rich Wet Outwash
... F144AY029NY – Semi-Rich Wet Outwash
15b.
Soils Very Poorly Drained
17a.
Soils nutrient rich; higher base saturation – Semi-rich Very Wet Outwash
... F144AY030NY – Semi-Rich Very Wet Outwash
17b.
Soils not nutrient rich; lower base saturation – Very Wet Outwash
... F144AY031MA – Very Wet Outwash
6b.
Glaciated lakewater deposits (glaciolacustrine)
18b.
Soils moderately well drained to very poorly drained
19a.
Soils moderately well drained and somewhat poorly drained – Moist Lake Plain
... F144AY018NY – Moist Lake Plain
19b.
Soils poorly or very poorly drained
20b.
Soils very poorly drained – Very Wet Coastal Lake Plain
... F144AY020MA – Very Wet Coastal Lake Plain
5b.
Glaciated parent material ice-deposited (glacial till)
21a.
Soils well drained to excessively drained
22a.
Soils somewhat excessively to excessively drained
23a.
Soils shallow (< 50cm) to bedrock – Shallow Dry Till Uplands
... F144AY033MA – Shallow Dry Till Uplands
22b.
Soils well drained
24a.
Soils nutrient rich; higher base saturation
25a.
Soils shallow (< 50cm) to bedrock – Shallow Semi-rich Well Drained Till Uplands
... F144AY035MA – Shallow Semi-Rich Well Drained Till Uplands
25b.
Soils moderately deep or deep to bedrock – Semi-rich Well Drained Till Uplands
... F144AY036NY – Semi-Rich Well Drained Till Uplands
24b.
Soils not nutrient rich; lower base saturation
26a.
Soils moderately deep to densic contact -Well Drained Dense Till Uplands
... F144AY007CT – Well Drained Dense Till Uplands
21b.
Soils moderately well to very poorly drained
27a.
Soils moderately well drained
28a.
Soils nutrient rich; higher base saturation – Semi-rich Moist Till Uplands
... F144AY038NY – Semi-Rich Moist Till Uplands
28b.
Soils not nutrient rich; lower base saturation
29a.
Soils moderately deep to densic contact – Moist Dense Till Uplands
... F144AY037MA – Moist Dense Till Uplands
27b.
Soils poorly to very poorly drained
30a.
Soils poorly drained
31a.
Soils nutrient rich; higher base saturation – Semi-rich Wet Till Depressions
... F144AY039NY – Semi-Rich Wet Till Depressions
31b.
Soils not nutrient rich; lower base saturation – Wet Till Depressions
... F144AY009CT – Wet Till Depressions
30b.
Soils very poorly drained
32a.
Soils nutrient rich; higher base saturation – Semi-rich Very Wet Till Depressions
... F144AY040NY – Semi-Rich Very Wet Till Depressions
32b.
Soils not nutrient rich; lower base saturation – Very Wet Till Depressions
... F144AY041MA – Very Wet Till Depressions
4b.
Parent material Alluvium; landform a floodplain
33a.
Soils excessively drained to well drained
33b.
Soils moderately well drained to very poorly drained
35b.
Soils poorly to very poorly drained
36a.
Soils poorly drained
37a.
Soil texture coarse-sandy – Wet Sandy Low Floodplain
... F144AY014CT – Wet Sandy Low Floodplain
37b.
Soil texture coarse-silty – Wet Silty Low Floodplain
... F144AY015NY – Wet Silty Low Floodplain
36b.
Soils very poorly drained – Very Wet Low Floodplain F144AY016MA
... F144AY016MA – Very Wet Low Floodplain
3Bb.
Soils with organic layer ("O" horizon) ≥ 40 cm (16") in thickness – Organic Soils
38a.
Soils formed in freshwater environments
39a.
Wetland mineralogy nutrient rich; euic soil reaction class – Semi-rich Organic Wetlands
... F144AY042NY – Semi-Rich Organic Wetlands
39b.
Wetland mineralogy nutrient poor; dysic soil reaction class – Acid Organic Wetlands … F144AY043MA
... F144AY043MA – Acidic Organic Wetlands
38b.
Soils formed in salt/brackish environments
40a.
Tidally flooded daily – Tidal Low Marsh
... R144AY002CT – Tidal Salt High Marsh mesic very frequently flooded
40b.
Tidally flooded twice a month – Tidal High Marsh
... R144AY001CT – Tidal Salt Low Marsh mesic very frequently flooded
2b.
Soils anthroprgenic (Human Altered Human Transported [HAHT] -Urban Soils
41a.
HAHT material dredged
42a.
Soils excessively to moderately well drained - Dredgic Material
42b.
Soils somewhat poorly to poorly drained - Wet Dredgic Material
41b.
HAHT material not dredged; either methanogenic, combustic, spolic, or pauciartifactic, or artifactic
43a.
HAHT material methanogenic (landfill soils) – Landfills
43b
HAHT material not methanogenic; either combustic, spolic, pauciartifactic & artifactic
44a.
HAHT material combustic (coal combustion)
45a.
Soils somewhat excessively drained to moderately well drained – Ashy
45b.
Soils somewhat poorly to poorly drained – Wet Ashy
44b.
HAHT material not combustic; either spolic or pauciartifactic & artifactic
46a.
Soils spolic (clean fill, <10% artifacts) - Clean Fill
46b.
Soils pauciartifactic & artifactic (>10% artifacts, mostly construction debris) – Artifactic
1b.
Soils permanently (>21hrs/day) submerged in water - Subaqueous Soils
47a.
Soils formed in freshwater
48a.
Soils formed in submerged mineral deposits - Subaqueous Freshwater Mineral Deposits
... R144AY045RI – Subaqueous Freshwater Mineral Deposits
48b.
Soils formed in submerged organic deposits - Subaqueous Freshwater Organic Deposits
... R144AY046RI – Subaqueous Freshwater Organic Deposits
47b.
Soils formed in salt and/or brackish water
49a.
Soils formed in submerged glacial deposits - Subaqueous Haline Glacial Deposits
... R144AY049RI – Subaqueous Haline Slopes
49b.
Soils formed in marine or estuarine deposits
50a.
Soils formed in low energy environments (lagoon & bay bottoms, stream valleys, coves) - Subaqueous Haline Low Energy Basins
... R144AY048RI – Subaqueous Haline Low Energy Basins
50b.
Soils formed in high energy environments
51a.
Landform a washover fan slope - Subaqueous Haline Slopes
... R144AY049RI – Subaqueous Haline Slopes
51b.
Landform a washover fan flat or flood tidal delta flat - Subaqueous Haline Flats
... R144AY050RI – Subaqueous Haline Flats
-
key2 . Key 2 is a strict dichotomous key w/ paired couplets. 7 HAHT PES were added as reserves to be developed in EDIT (NBarrett)
MLRA 144A Outline
I.
Soils permanently (>21hrs/day) submerged in water
A.
Soils formed in freshwater
1
Soils formed in submerged organic deposits
... R144AY046RI – Subaqueous Freshwater Organic Deposits
2
Soils formed in submerged mineral deposits
... R144AY045RI – Subaqueous Freshwater Mineral Deposits
B.
Soils formed in salt and/or brackish water
2
Soils formed in marine or estuarine deposits
i.
Soils formed in low energy environments (lagoon & bay bottoms, stream valleys, coves)
... R144AY048RI – Subaqueous Haline Low Energy Basins
ii.
Soils formed in high energy environments
II.
Soils not permanently submerged in water
A.
Soils with organic layer ("O" horizon) ≥ 16" in thickness
1
Soils formed in freshwater environments
i.
Wetland mineralogy nutrient poor; Dysic soil reaction class
... F144AY043MA – Acidic Organic Wetlands
ii.
Wetland mineralogy nutrient rich; Euic soil reaction class
... F144AY042NY – Semi-Rich Organic Wetlands
2
Soils formed in salt/brackish environments
ii.
Tidally flooded twice a month
... R144AY002CT – Tidal Salt High Marsh mesic very frequently flooded
B.
Soils without organic layer ("O" horizon) or organic layer < 16" in thickness
1
Parent material alluvium; landform a floodplain
ii.
Soils well, moderately well, somewhat poorly, poorly or very poorly drained
a.
Soils hydric; drainage class somewhat poorly, poorly or very poorly drained
2)
Soils somewhat poorly or poorly drained
b.
Soils not hydric; drainage class well, moderately well
1)
Soils well drained
a)
Soil texture coarse-silty
2)
Soils moderately well drained
a)
Soil texture coarse-silty
2
Parent material glacial till, glaciofluvial, or glaciolacustrine; landform not a floodplain
i.
Parent material glaciolacustrine
b.
Soils moderately well, somewhat poorly, poorly or very poorly drained.
2)
Soils poorly or very poorly drained
ii.
Parent material glacial till or glaciofluvial
3
Soil depth < 20" to Bedrock
i.
Bedrock lithology limestone
ii.
Bedrock lithology granite, gneiss, or schist
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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