OSD Data Refresh - 2024-10-21

OSD/A/AGINAKTUK.txt

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+LOCATION AGINAKTUK              AK
+
+Tentative Series
+SWD/MPS
+10/2024
+
+AGINAKTUK SERIES
+
+Depth class: very deep
+Drainage class: poorly drained
+Parent material: organic material over loamy alluvium derived from metamorphic and sedimentary rock
+Landscape: river valleys
+Landform: depressions on terraces
+Slopes: 0 to 15 percent
+Mean annual precipitation: about 450 mm (19 in)
+Mean annual air temperature: about -3 degrees C. (27 degrees F.)
+Frost-free period: 75 to 90 days
+
+TAXONOMIC CLASS: Loamy, mixed, euic Terric Cryohemists
+
+TYPICAL PEDON: Aginaktuk muck in a forb and shrub community on an east facing concave, linear tread on a slope of 2 percent at an elevation of 125 m (410 ft)
+
+     Oa--0 to 10 cm (0.0 to 4 in); muck; black (10YR 2/1) moist, dark gray (10YR 4/1) dry; many very fine and fine roots throughout; noneffervescent; moderately acid (pH 5.6); abrupt smooth boundary. (5 to 20 cm, 2 to 8 in thick)
+
+     Oe--10 to 47 cm (4 to 19 in); mucky peat; very dark brown (10YR 2/2) moist, dark gray (10YR 4/1) dry; many very fine and fine roots throughout; noneffervescent; moderately acid (pH 5.6); clear smooth boundary. (35 to 80 cm, 14 to 32 in thick)
+
+     Bg--47 to 85 cm (19 to 34 in); silt; dark gray (10YR 4/1) moist, gray (10YR 6/1) dry; weak medium subangular blocky parts to weak fine granular structure; friable, slightly hard, slightly sticky, slightly plastic; nonfluid; few fine roots top of horizon; common very fine tubular pores; 15 percent fine distinct irregular dark yellowish brown (10YR 4/4), moist, masses of reduced iron in matrix; noneffervescent; slightly acid (pH 6.1); clear smooth boundary. (20 to 50 cm, 8 to 20 in thick)
+
+     Cg--85 to 200 cm (34 to 79 in); gravelly silt loam; dark gray (10YR 4/1) moist, gray (10YR 6/1) dry; massive; firm, moderately hard, slightly sticky, slightly plastic; nonfluid; common very fine tubular pores; 20 percent gravel; noneffervescent; slightly acid (pH 6.4). (50 to 140 cm, 20 to 55 in thick)
+
+TYPE LOCATION: Nulato Hills - Continental Divide and Blackburn Hills Soil Survey Area, Alaska; latitude 64.2181732, longitude -160.1816314, datum WGS84, UTM north 7121858.61 and UTM east 442657.46, zone 4, datum WGS84.
+
+RANGE IN CHARACTERISTICS:
+
+Soil moisture regime: aquic
+Soil temperature regime: cryic
+Mean annual soil temperature: 1 to 3 degrees C. (34 to 37 degrees F.)
+Thickness of organic material: 40 to 100 cm (16 to 40 in)
+Thickness of sapric soil materials: 5 to 20 cm (2 to 8 in)
+Thickness of hemic soil materials:  35 to 80 cm (14 to 32 in)
+Depth to redoximorphic concentrations: 40 to 100 cm (16 to 40 in)
+Depth to reduced matrix: 40 to 100 cm (16 to 40 in)
+
+Oa and Oe horizons:
+Hue: 7.5YR or 10YR
+Value: 2 to 3 moist, 4 or 5 dry
+Chroma: 1 or 2
+Texture: muck or mucky peat
+Organic matter: 60 to 90 percent
+Reaction class: strongly acid to neutral (pH 5.1 to 7.3)
+
+Bg horizon:
+Hue: 4 or 5 moist, 6 or 7 dry
+Chroma: 1 or 2
+Texture: silt or silt loam
+Sand: 0 to 35 percent
+Silt: 50 to 97 percent
+Clay: 3 to 20 percent
+Organic matter: 0.5 to 6 percent
+Reaction class: strongly acid to slightly acid (pH 5.1 to 6.5)
+
+Cg horizon:
+Hue: 4 or 5 moist, 6 or 7 dry
+Chroma: 1 or 2
+Texture: silt, silt loam or their gravelly analogues
+Sand: 0 to 35 percent
+Silt: 50 to 95 percent
+Clay: 5 to 27 percent
+Rock fragments: 0 to 25 percent
+Organic matter: 0.4 to 3 percent
+Reaction class: moderately acid to neutral (pH 5.6 to 7.3)
+
+COMPETING SERIES: These are the Doroshin, Hewitt, Runkelscreek (AK) and Tepete (ID, WY, MT) series.
+Doroshin soils lack sapric soil material, lack a Bg horizon, and have a clay content range of less than 3 percent
+Hewitt soils have up to 35 percent clay in the mineral substratum and have a mean annual air temperature of -1 to 4 degrees C (30 to 40 degrees F)
+Runkelscreek soils have ponding, have mineral substratum textures of loam and very fine sandy loam
+Tepete soils have up to 35 percent clay in the mineral substratum and have a mean annual air temperature of 1 to 6 degrees C (33.8 to 42.8 degrees F)
+
+GEOGRAPHIC SETTING:
+Elevation: 50 to 600 meters (164 to 1970 feet)
+Parent material: organic material over loamy alluvium derived from metamorphic and sedimentary rock
+Landform: depressions on terraces
+Slopes: 0 to 15 percent
+Mean annual precipitation: 400 to 600 mm (16 to 24 in)
+Mean annual air temperature: -5 to -1 degrees C. (23 to 30 degrees F.)
+Frost free period: 75 to 90 days
+
+GEOGRAPHICALLY ASSOCIATED SOILS: These are the Alliksuk, Asriavik, Kiuriruk, Napaaktuk, Niilgik, Ottercreek, Sprucecreek soils. 
+Alliksuk soils have a thin organic surface, have an ochric epipedon, have cambic horizon, have cryoturbation, and occur on similar landforms on terraces
+Asriavik soils have a folistic epipedon, have a cambic horizon, have a loamy-skeletal over sandy or sandy-skeletal particle size class, occur on terrace treads
+Kiuriruk have permafrost, have a histic epipedon, have a gelic soil temperature regime, and occur on terrace treads
+Napaaktuk soils have aquic conditions starting between 50 to 100cm (20 to 39 in), have a reduced matrix starting between 50 to 100 cm (20 to 39 in), have a thin organic surface, have a mollic epipedon, and occur on flood plains
+Niilgik soils have permafrost, have a histic epipedon, have gelic materials including cryoturbation, have a gelic soil temperature regime, and occur on foot slopes and mountainbases
+Ottercreek soils have a reduced matrix within 25 cm (10 in), have a thin organic surface, have an ochric epipedon, and occur on mountainbases and mountainflanks, lower third
+Sprucecreek soils have a folistic epipedon, have a cambic horizon, have a sandy particle size class, and occur on terrace treads
+
+DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: 
+Drainage class: poorly drained
+Saturated Hydraulic Conductivity: high in the Oa and Oe horizons, moderately high to high in the Bg and Cg horizons
+Permeability: moderate to moderately rapid in the Oa and Oe horizons, moderate in the Bg and Cg horizons
+Runoff: negligible to very high
+
+USE AND VEGETATION: 
+Use: wildlife habitat, recreation, and subsistence
+Native vegetation: field horsetail, shrubby cinquefoil, tealeaf willow, lapland reedgrass, dwarf birch, bluejoint, moss, bog blueberry, white spruce, Canadian burnet
+
+DISTRIBUTION AND EXTENT: MLRA 240, Nulato Hills-Southern Seward Peninsula Highlands. The series is of small extent.
+
+SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Wasilla, Alaska
+
+SERIES ESTABLISHED: Nulato Hills - Continental Divide and Blackburn Hills Soil Survey, Alaska, 2024.
+
+REMARKS: Diagnostic features and horizons recognized in this profile include:
+
+Particle-size control section: 0 to 130 cm (0 to 51 in)
+
+Surface tier: zone from 0 to 30 cm (0 to 12 in)
+
+Subsurface tier: zone from 30 to 90 cm (12 to 35 in)
+
+Bottom tier: zone from 90 to 130 cm (35 to 51 in)
+
+Thickness of organic soil materials: 47 cm (19 in) (Oa and Oe horizons)
+
+Sapric soil materials: 0 to 10 cm (0 to 4 in) (Oa horizon)
+
+Hemic soil materials: 10 to 47 cm (4 to 19 in) (Oe horizon)
+
+Redoximorphic concentrations: 47 to 85 cm (19 to 33 in) (Bg horizon)
+
+Reduced matrix: 47 to 200 cm (19 to 79 in) (Bg and Cg horizons)
+
+Aquic conditions: 0 to 200 cm (0 to 79 in) (Oa, Oe, Bg, Cg horizons)
+
+ADDITIONAL DATA:
+
+User pedon ID: 2021AK180856
+
+National Cooperative Soil Survey
+U.S.A.

OSD/A/AGITCHUK.txt

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+LOCATION AGITCHUK               AK
+
+Tentative Series
+MPS
+10/2024
+
+AGITCHUK SERIES
+
+Depth class: very deep
+Drainage class: poorly drained
+Parent material: mossy organic material over loamy slope alluvium derived from metamorphic and sedimentary rock
+Landscape: hills
+Landform: hillslopes
+Slopes: 1 to 30 percent
+Mean annual precipitation: about 400 mm (16 in)
+Mean annual air temperature: about -4 degrees C. (24 degrees F.)
+Frost-free period: 70 to 90 days
+
+TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, acid, subgelic Histic Gelaquepts
+
+TYPICAL PEDON: Agitchuk peat in a black spruce with moss and shrub understory community on a south facing linear, linear toeslope on a slope of 6 percent at an elevation of 151m (495 ft)
+
+     Oi1--0 to 7 cm (0.0 to 3 in); peat; very dark brown (10YR 2/2) broken face moist, dark grayish brown (10YR 4/2) broken face dry; many very fine and fine roots throughout; ultra acid (pH 3.4); clear smooth boundary
+
+     Oi2--7 to 16 cm (3 to 6 in); peat; brownish yellow (10YR 6/6) broken face moist, yellow (10YR 8/6) broken face dry; many very fine and fine and common medium roots throughout; extremely acid (pH 3.8); abrupt smooth boundary. (combined thickness is 16 to 24 cm, 6 to 9 in thick)
+
+     Oa--16 to 21 cm (6 to 8 in); muck; black (10YR 2/1) broken face moist, dark gray (10YR 4/1) broken face dry; many very fine and fine and common medium roots throughout; extremely acid (pH 4.1); abrupt smooth boundary. (4 to 15 cm, 2 to 6 in thick)
+
+     Bg--21 to 49 cm (8 to 19 in); silt loam; dark grayish brown (10YR 4/2) broken face moist, light brownish gray (10YR 6/2) broken face dry; moderate very thin platy structure; friable, slightly hard, nonsticky, nonplastic; nonsmeary; moderately few very fine and fine roots throughout; common very fine dendritic tubular pores; 25 percent medium distinct irregular reddish brown (5YR 4/3), moist, masses of oxidized iron in matrix; noneffervescent; very strongly acid (pH 4.8); clear smooth boundary. (15 to 35 cm, 6 to 14 in thick)
+
+     Cg1--49 to 68 cm (19 to 27 in); silt loam; 85 percent dark grayish brown (10YR 4/2) broken face and 15 percent yellowish brown (10YR 5/4) broken face moist, 85 percent light brownish gray (10YR 6/2) broken face and 15 percent very pale brown (10YR 7/4) broken face dry; massive; friable, slightly hard, nonsticky, nonplastic; nonsmeary; common very fine roots throughout; many very fine dendritic tubular pores; 10 percent very fine prominent irregular brownish yellow (10YR 6/8), moist, masses of oxidized iron in matrix; 5 percent gravel; noneffervescent; very strongly acid (pH 5.0); abrupt wavy boundary. (15 to 30 cm, 6 to 12 in thick)
+
+     Cg/Ajj--68 to 120 cm (27 to 47 in); silt loam; 60 percent dark grayish brown (10YR 4/2) broken face and 40 percent very dark gray (10YR 3/1) broken face moist, 60 percent light brownish gray (10YR 6/2) broken face and 40 percent gray (10YR 5/1) broken face dry; massive, and weak fine granular structure; friable, slightly hard, slightly sticky, slightly plastic; nonsmeary; few very fine dendritic tubular pores; 10 percent fine distinct irregular brown (7.5YR 4/4), moist, masses of oxidized iron in matrix; 4 percent gravel; noneffervescent; strongly acid (pH 5.1); clear smooth boundary. (15 to 75 cm, 6 to 30 in thick)
+
+     Cg2--120 to 200 cm (47 to 79 in); silt loam; gray (10YR 5/1) broken face moist, light gray (10YR 7/1) broken face dry; massive; friable, slightly hard, nonsticky, slightly plastic; nonsmeary; few very fine dendritic tubular pores; 10 percent fine prominent irregular brown (7.5YR 4/4), moist, masses of oxidized iron in matrix; 10 percent gravel; noneffervescent; strongly acid (pH 5.2)
+
+TYPE LOCATION: Nulato Hills - Continental Divide and Blackburn Hills Soil Survey Area, Alaska; latitude 64.2530833, longitude -160.1630277, datum WGS84, UTM north 7125731.73 and UTM east 443631.27, zone 4, datum WGS84.
+
+RANGE IN CHARACTERISTICS:
+
+Soil moisture regime: aquic
+Soil temperature regime: gelic
+Mean annual soil temperature: -1 to 0 degrees C. (30 to 32 degrees F.)
+Thickness of histic epipedon: 20 to 40 cm (8 to 16 in)
+Thickness of cambic horizon: 15 to 35 cm (6 to 14 in)
+Depth to redoximorphic concentrations: 18 to 39 cm (7 to 15 in)
+Depth to reduced matrix: 18 to 39 cm (7 to 15 in)
+
+Oi and Oa horizons:
+Hue: 5YR, 7.5YR, or 10YR
+Value: 2 to 6 moist, 4 to 8 dry
+Chroma:1 to 8
+Texture: peat and muck
+Organic matter: 60 to 90 percent
+Reaction class: ultra acid to extremely acid (pH 3 to 4.4)
+
+Bg horizon:
+Hue: 10YR, 2.5Y, or 5Y
+Value: 4 or 5 moist, 6 or 7 moist
+Chroma: 1 or 2
+Texture: silt loam, or sandy loam
+Sand: 10 to 70 percent
+Silt: 18 to 80 percent
+Clay: 2 to 12 percent
+Organic matter: 0.5 to 4 percent
+Reaction class: very strongly acid to strongly acid (pH 4.5 to 5.4)
+
+Cg horizons:
+Hue: 10YR, 2.5Y, or 5Y
+Value: 4 or 5 moist, 6 or 7 moist
+Chroma: 1 or 2
+Texture: silt, or silt loam
+Sand: 10 to 45 percent
+Silt: 50 to 88 percent
+Clay: 2 to 10 percent
+Rock fragments: 0 to 14 percent
+Organic matter: 0.5 to 3 percent
+Reaction class: very strongly acid to strongly acid (pH 4.5 to 5.4)
+
+Cg/Ajj horizon:
+Hue: 10YR, 2.5Y, or 5Y
+Value: 3 to 5 moist, 5 to 7 dry
+Chroma: 1 or 2
+Texture: silt, or silt loam
+Sand: 10 to 45 percent
+Silt: 50 to 88 percent
+Clay: 2 to 10 percent
+Rock fragments: 0 to 10 percent
+Organic matter: 0.5 to 6 percent
+Reaction class: very strongly acid to strongly acid (pH 4.5 to 5.4)
+
+COMPETING SERIES: none
+
+GEOGRAPHIC SETTING:
+Elevation: 50 to 375 meters (164 to 1230 feet)
+Parent material: mossy organic material over loamy slope alluvium derived from metamorphic and sedimentary rock
+Landform: hillslopes
+Slopes: 1 to 30 percent
+Mean annual precipitation: 300 to 500 mm (12 to 20 in)
+Mean annual air temperature: -6 to -1 degrees C. (21.2 to 30.2 degrees F.)
+Frost free period: 70 to 90 days
+
+GEOGRAPHICALLY ASSOCIATED SOILS: These are the Amigak, Fluffle, Imak, Kilguk, Nappaktuk, Shovelcreek, Sikuruk, and Stovecreek soils.
+Amigak soils have a fine-loamy particle size class, have a clay range in the substratum from 16 to 35 percent, and occur on backslopes and footslopes
+Fluffle soils have an ochric epipedon, have a cryic soil temperature regime, have a nonacid reaction class, lack cryoturbation, have frequent, long flooding, and occur on flood plains
+ Imak soils have permafrost, have an isotic mineralogy class, have a surface organic layer greater than 40 cm thick, and occur on footslopes, backslopes and shoulders
+Kilguk soils have permafrost, have a folistic epipedon, lack a cambic horizon, have a coarse-silty particle size class, have a nonacid reaction class, and occur on thermokarst stream terraces
+Nappaktuk soils have aquic conditions starting between 50 to 100 cm (20 to 39 in), have a mollic epipedon, have a cryic soil temperature regime, have an aniso class, lack cryoturbation, have occasional, brief flooding, and occur on flood plains
+Shovelcreek soils have an ochric epipedon, have a sandy-skeletal particle size class, have a cryic soil temperature regime, lack aquic conditions, lack a cambic horizon, lack cryoturbation, and occur on flood plains and bars on flood plains
+Sikuruk soils have permafrost, have a thicker organic surface, lack a cambic horizon, and occur on saddles, summits, shoulders and mountainflanks, center third
+Stovecreek soils have an umbric epipedon, lack a cambic horizon, lack cryoturbation, have a cryic soil temperature regime, have an isotic mineralogy class, and occur on similar landforms on footslopes and toeslopes of drainageways
+
+DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: 
+Drainage class: poorly drained
+Saturation during normal years--saturated between 0 and 25 cm (0 and 10 in) during the growing season
+Saturated Hydraulic Conductivity: High in the Oi and Oa horizons, moderately high to high in the Bg, Cg, and Cg/Ajj horizons
+Permeability: moderate to moderately rapid in the Oi and Oa horizons, moderate to rapid in the Bg horizon, moderate in the Cg and Cg/Ajj horizons
+Runoff: negligible
+
+USE AND VEGETATION: 
+Use: wildlife habitat, recreation, and subsistence
+Native vegetation: sphagnum, cloudberry, Schreber's big red stem moss, bog blueberry, marsh Labrador tea, black spruce, dwarf birch, small cranberry, moss, Bigelow's sedge
+
+DISTRIBUTION AND EXTENT: MLRA 240, Nulato Hills-Southern Seward Peninsula Highlands. The series is of moderate extent.
+
+SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Wasilla, Alaska
+
+SERIES ESTABLISHED: Nulato Hills - Continental Divide and Blackburn Hills Soil Survey, Alaska, 2024.
+
+REMARKS: Diagnostic features and horizons recognized in this profile include:
+
+Particle-size control section: 46 to 121 cm (18 to 48 in)
+
+Histic epipedon: 0 to 21cm (0 to 8 in) (Oi and Oa horizons)
+
+Cambic horizon: 21 to 49 cm (8 to 19 in) (Bg horizon)
+
+Redoximorphic concentrations: 21 to 200 cm (8 to 79 in) (Bg, Cg, and Cg/Ajj horizons)
+
+Reduced matrix: 21 to 200 cm (8 to 79 in) (Bg, Cg, and Cg/Ajj horizons)
+
+Cryoturbation: 68 to 120 cm (27 to 47 in) (Cg/Ajj horizon)
+
+Aquic conditions: 0 to 200 cm (0 to 79 in) (Oi, Oa, Bg, Cg, and Cg/Ajj horizons)
+
+ADDITIONAL DATA:
+
+User pedon ID: 2021AK180731
+
+National Cooperative Soil Survey
+U.S.A.