OSD Data Refresh - 2024-11-04

OSD/A/AAGIAK.txt

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+LOCATION AAGIAK                 AK
+
+Tentative Series
+MPS
+10/2024
+
+AAGIAK SERIES
+
+Depth class: very deep
+Drainage class: somewhat poorly drained
+Parent material: loamy colluvium over gravelly loamy colluvium derived from mudstone
+Landscape: mountains
+Landform: mountain slopes
+Slopes: 5 to 18 percent
+Mean annual precipitation: about 500 mm (19.7 in)
+Mean annual air temperature: about -4 degrees C. (25 degrees F.)
+Frost-free period: 70 to 85 days
+
+TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, acid Humic Cryaquepts
+
+TYPICAL PEDON: Aagiak gravelly silt loam in a willow subalpine community on a southwest facing linear, concave backslope on a slope of 12 percent at an elevation of 460m (1509 ft)
+
+     Oe--0 to 2 cm (0 to 1 in); moderately decomposed plant material; black (10YR 2/1) broken face moist, dark gray (10YR 4/1) broken face dry; many very fine and fine roots throughout; very strongly acid (pH 4.5); abrupt smooth boundary. (1 to 8 cm, 0.5 to 3 in thick)
+
+     A1--2 to 16 cm (1 to 6 in); gravelly silt loam; very dark grayish brown (10YR 3/2) broken face moist; grayish brown (10YR 5/2) broken face dry; moderate coarse subangular blocky structure; friable, slightly hard, nonsticky, nonplastic; nonsmeary; common very fine roots throughout; few very fine dendritic tubular pores; 20 percent gravel; noneffervescent; very strongly acid (pH 4.6); clear smooth boundary. (10 to 16 cm, 4 to 6 in thick)
+
+     A2--16 to 30 cm (6 to 12in); gravelly silt loam; very dark brown (10YR 2/2) broken face moist, dark grayish brown (10YR 4/2) broken face dry; moderate coarse subangular blocky parts to weak fine granular structure; friable, slightly hard, nonsticky, nonplastic; nonsmeary; common very fine roots throughout; few very fine dendritic tubular pores; 20 percent gravel; noneffervescent; very strongly acid (pH 5.0); clear wavy boundary. (8 to 16 cm, 3 to 6 in thick)
+
+     2Cg1--30 to 100 cm (12 to 39 in); very gravelly fine sandy loam; dark grayish brown (10YR 4/2) broken face moist, light brownish gray (10YR 6/2) broken face dry; massive; friable, slightly hard, nonsticky, nonplastic; nonsmeary; very few very fine roots throughout; common very fine dendritic tubular pores; 40 percent gravel; noneffervescent; strongly acid (pH 5.1). (50 to 90 cm, 20 to 35 in thick)
+
+     2Cg2--100 to 200 cm (39 to 79 in); extremely gravelly fine sandy loam; dark grayish brown (10YR 4/2) broken face moist, light brownish gray (10YR 6/2) broken face dry; massive; friable, slightly hard, nonsticky, nonplastic; nonsmeary; common very fine irregular pores; 65 percent gravel; noneffervescent; strongly acid (pH 5.3).
+
+TYPE LOCATION: Nulato Hills - Continental Divide and Blackburn Hills Soil Survey Area, Alaska; latitude 64.4946738, longitude -160.2606248, datum WGS84, UTM north 7152740.31 and UTM east 439435.56, zone 4, datum WGS84.
+
+RANGE IN CHARACTERISTICS:
+
+Soil moisture regime: aquic
+Soil temperature regime: cryic
+Mean annual soil temperature: 0 to 3 degrees C. (32 to 37 degrees F.)
+Thickness of organic material: 1 to 8 cm (0.5 to 3 in)
+Thickness of umbric epipedon: 18 to 32 cm (7 to 13 in)
+Depth to reduced matrix: 17 to 40 cm (7 to 16 in)
+
+Oe horizon:
+Hue: 7.5YR or 10YR
+Value: 2 to 3 moist, 4 to 5 dry
+Chroma: 1 or 2
+Texture: moderately decomposed material
+Organic matter: 60 to 90 percent
+Reaction class: extremely acid to strongly acid (pH 3.5 to 5.4)
+
+A horizon:
+Hue: 7.5YR or 10YR
+Value: 2 to 3 moist, 4 to 5 dry
+Chroma: 1 to 3
+Texture: silt loam or its gravelly analogue
+Sand: 10 to 35 percent
+Silt: 55 to 80 percent
+Clay: 2 to 10 percent
+Rock fragments: 0 to 30 percent
+Organic matter: 2 to 8 percent
+Reaction class: extremely acid to strongly acid (pH 3.5 to 5.4)
+
+A2 horizon:
+Hue: 7.5YR or 10YR
+Value: 2 to 3 moist, 4 to 5 dry
+Chroma: 1 to 3
+Texture: silt loam, fine sandy loam or their gravelly analogues
+Sand: 10 to 45 percent
+Silt: 48 to 80 percent
+Clay: 2 to 10 percent
+Rock fragments: 0 to 30 percent
+Organic matter: 2 to 8 percent
+Reaction class: extremely acid to strongly acid (pH 3.5 to 5.4)
+
+2Cg1 horizon:
+Hue: 10YR or 2.5Y
+Value: 4 or 5 moist, 6 to 7 dry 
+Chroma: 1 or 2
+Texture: silt loam, fine sandy loam or their gravelly analogues
+Sand: 15 to 55 percent
+Silt: 33 to 80 percent
+Clay: 2 to 12 percent
+Rock fragments: 15 to 59 percent
+Organic matter: 0.4 to 3 percent
+Reaction class: extremely acid to strongly acid (pH 3.5 to 5.4)
+
+2Cg2 horizon:
+Hue: 10YR or 2.5Y
+Value: 4 or 5 moist, 6 to 7 dry 
+Chroma: 1 or 2
+Texture: silt loam, fine sandy loam or their gravelly analogues
+Sand: 15 to 60 percent
+Silt: 28 to 80 percent
+Clay: 2 to 12 percent
+Rock fragments: 35 to 75 percent
+Organic matter: 0.4 to 3 percent
+Reaction class: extremely acid to strongly acid (pH 3.5 to 5.4)
+
+COMPETING SERIES: There are no competing series.
+
+GEOGRAPHIC SETTING:
+Elevation: 350 to 550 meters (1150 to 1805 feet)
+Parent material: loamy colluvium over gravelly loamy colluvium derived from mudstone
+Landform: mountain slopes
+Slopes: 5 to 18 percent
+Mean annual precipitation: 400 to 500 mm (16 to 20 in)
+Mean annual air temperature: -6 to -2 degrees C. (21to 30 degrees F.)
+Frost free period: 70 to 85 days
+
+GEOGRAPHICALLY ASSOCIATED SOILS: These are the Apkun, Apun, Fluffle, Iyyagrik, Managaarak and Siku soils.
+Apkun soils have a lithic contact at depths between 50 to 100 cm (20 to 40 in), lack aquic conditions, have a fragmental layer starting between 35 to 84 cm (14 to 33 in), have a gelic soil temperature regime, and occur on mountainflanks, upper and center thirds
+Apun soils have permafrost, have aquic conditions starting between 0 to 25 cm (0 to 10 in), have a histic epipedon, have cryoturbation, have a coarse-loamy particle size class, have a nonacid reaction class, have a gelic soil temperature regime, and occur on terraces, footslopes, saddles, and mountainbases
+Fluffle soils have aquic conditions starting between 0 to 25 cm (0 to 10 in), have an ochric epipedon, have a cambic horizon, have a coarse-loamy particle size class, have a nonacid reaction class, and occur on flood plains
+Iyyagrik soils have a lithic contact at depths between 100 to 150 cm (40 to 60 in), lack aquic conditions, have a mollic epipedon, have a pH range of 5.5 to 7.3 in the mineral horizons, and occur on mountainflanks, upper third
+Managaarak soils have a lithic contact at depths between 100 to 150 cm (40 to 60 in), lack aquic conditions, have a fragmental layer starting between 41 to 93 cm (16 to 37 in), have an ochric epipedon, have a gelic soil temperature regime, and occur on mountainflanks, upper third
+Siku soils have aquic conditions starting between 0 to 25 cm (0 to 10 in), have a folistic epipedon, have a cambic horizon, have a gelic soil temperature regime, and occur on mountainflanks, upper, center, and lower thirds
+
+DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: 
+Drainage class: somewhat poorly drained
+Saturation during normal years: saturated between 25 and 50 cm (10 and 20 in) during the growing season
+Saturated Hydraulic Conductivity: very high in the Oe horizon, moderately high in the A1 horizon, and moderately high to high in the A2, 2Cg1, and 2Cg2 horizons
+Permeability: rapid to very rapid in the Oe horizon, moderate in the A1 horizon, and moderate to rapid in the A2, 2Cg1, and 2Cg2 horizons
+Runoff: very high
+
+USE AND VEGETATION: 
+Use: wildlife habitat, recreation, and subsistence
+Native vegetation: tealeaf willow, bluejoint, woodland horsetail, moss, yellow thimbleweed, dwarf raspberry, larkspurleaf monkshood, heartleaf saxifrage
+
+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: 27 to 102 cm (11 to 40 in)
+
+Umbric epipedon: 2 to 30 cm (1 to 12 in) (A1 and A2 horizons)
+
+Reduced matrix: 30 to 200 cm (12 to 79 in) (2Cg1 and 2Cg2 horizons)
+
+Lithologic discontinuity: 30 to 200 cm (12 to 79 in) (2Cg1 and 2Cg2 horizons)
+
+Aquic conditions: 30 to 200 cm (12 to 79 in) (2Cg1 and 2Cg2 horizons)
+
+ADDITIONAL DATA:
+
+User pedon ID: 2021AK180737
+
+National Cooperative Soil Survey
+U.S.A.

OSD/A/ALLIKSUK.txt

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+LOCATION ALLIKSUK               AK
+
+Tentative Series
+SWD/CBB
+10/2024
+
+ALLIKSUK SERIES
+
+Depth class: very deep
+Drainage class: well drained
+Parent material: loamy alluvium derived from metamorphic and sedimentary rock
+Landscape: river valleys
+Landform: terraces
+Slopes: 0 to 8 percent
+Mean annual precipitation: about 450 mm (17.72 in)
+Mean annual air temperature: about -4 degrees C. (25 degrees F.)
+Frost-free period: 70 to 90 days
+
+TAXONOMIC CLASS: Coarse-loamy, mixed, superactive Fluventic Haplocryepts
+
+TYPICAL PEDON: Alliksuk silt loam in a white spruce woodland on an east facing linear, linear terrace tread on a slope of 2 percent at an elevation of 122 m (400 ft)
+
+     Oe--0 to 4 cm (0 to 2 in); moderately decomposed plant material, 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; strongly acid (pH 5.4); abrupt smooth boundary. (2 to 5 cm, 1 to 2 in thick)
+
+     Bw--4 to 32 cm (2 to 13 in); silt loam, very dark grayish brown (2.5Y 3/2) broken face moist, grayish brown (2.5Y 5/2) broken face dry; weak medium subangular blocky structure; very friable, soft, nonsticky, nonplastic; nonsmeary; few very fine, fine, and coarse roots throughout; very fine and fine irregular pores; 2 % of SOM; 1.16 % of SOC; slightly acid (pH 6.2); clear smooth boundary. (20 to 60 cm, 8 to 24 in thick)
+
+     Bjj--32 to 85 cm (13 to 34 in); sandy loam, 90 percent very dark grayish brown (2.5Y 3/2) broken face and 10 percent black (10YR 2/1) broken face moist, 90 percent grayish brown (2.5Y 5/2) broken face and 10 percent dark gray (10YR 4/1) broken face dry; weak medium subangular blocky structure; friable, slightly hard, nonsticky, nonplastic; nonsmeary; few very fine roots top of horizon; very fine irregular pores; 5 percent gravel; 3 % of SOM; 1.74 % of SOC; slightly acid (pH 6.3); clear smooth boundary. (20 to 65 cm, 8 to 26 in thick)
+
+     C--85 to 200 cm (34 to 79 in); gravelly sandy loam, very dark grayish brown (2.5Y 3/2) broken face moist, grayish brown (2.5Y 5/2) broken face dry; structureless massive; slightly hard, friable, nonsticky, nonplastic; nonsmeary; very fine irregular pores; 10 percent medium, prominent, irregular brown (7.5R 4/4), moist, masses of oxidized iron in matrix; 20 percent gravel; 1.96 % of SOM; 1.13 % of SOC; slightly acid (pH 6.4). (70 to 158 cm, 28 to 62 in thick)
+
+TYPE LOCATION: Nulato Hills - Continental Divide and Blackburn Hills Soil Survey Area, Alaska; latitude 64 degrees 13 minutes 5.18 seconds north, longitude 160 degrees 10 minutes 42.85 seconds west, datum WGS84, UTM north 7121848.50 and UTM east 442805.85, zone 4W, datum WGS84.
+
+RANGE IN CHARACTERISTICS:
+
+Soil moisture regime: udic
+Soil temperature regime: cryic
+Mean annual soil temperature: 0 to 3 degrees C. (32 to 37 degrees F.)
+Thickness of organic material: 2 to 5 cm (1 to 2 in)
+Thickness of ochric epipedon: 22 to 65 cm (9 to 14 in)
+Thickness of cambic horizon: 64 to 195 cm (25 to 77 in)
+Depth to redoximorphic concentrations: 42 to 130 cm (16 to 51 in)
+Depth to cryoturbation: 22 to 65 cm (9 to 14 in)
+
+Oe horizon:
+Hue: 10YR or 7.5YR
+Value: 2 to 3 moist, 4 to 5 dry
+Chroma: 1 to 2
+Texture: moderately decomposed plant material
+Organic matter: 60 to 90 percent
+Reaction class: extremely acid to moderately acid (pH 3.5 to 6.0)
+
+Bw horizon:
+Hue: 2.5Y or 10YR
+Value: 3 to 4 moist, 5 to 6 dry
+Chroma: 1 to 3
+Texture: silt loam
+Sand: 20 to 48 percent
+Silt: 50 to 78 percent
+Clay: 2 to 8 percent
+Organic matter: 1 to 4 percent
+Reaction class: strongly acid to slightly acid (pH 5.1 to 6.5)
+
+Bjj horizon:
+Hue: 2.5Y or 10YR
+Value: 2 to 4 moist, 4 to 6 dry
+Chroma: 1 to 3
+Texture: sandy loam or silt loam
+Sand: 20 to 60 percent
+Silt: 32 to 78 percent
+Clay: 2 to 8 percent
+Rock fragments: 0 to 14 percent
+Gravels: 0 to 14 percent
+Organic matter: 1 to 4 percent
+Reaction class: moderately acid to slightly acid (pH 5.6 to 6.5)
+
+C horizon:
+Hue: 2.5Y, 5Y, or 10YR
+Value: 2 to 5
+Chroma: 2 to 4
+Texture: sandy loam, silt loam, or their gravelly analogues
+Sand: 20 to 60 percent
+Silt: 32 to 78 percent
+Clay: 2 to 8 percent
+Rock fragments: 0 to 30 percent
+Gravels: 0 to 30 percent
+Organic matter: 0.4 to 3 percent
+Reaction class: moderately acid to slightly acid (pH 5.6 to 6.5)
+
+COMPETING SERIES: There are no competing series.
+
+GEOGRAPHIC SETTING:
+Elevation: 50 to 380 meters (165 to 1,245 feet)
+Parent material: loamy alluvium derived from metamorphic and sedimentary rock
+Landform: terraces
+Slopes: 0 to 8 percent
+Mean annual precipitation: 400 to 500 mm (16 to 20 in)
+Mean annual air temperature: -6 to -1 degrees C. (21 to 30 degrees F.)
+Frost free period: 70 to 90 days
+
+GEOGRAPHICALLY ASSOCIATED SOILS: These are the Kiuriruk and Asriavik soils.
+Kiuriruk soils a histic epipedon and permafrost within 100 cm (40 in) and occur on similar landforms on poorly drained treads.
+Asriavik soils have a folistic epipedon and loamy-skeletal over sandy or sandy-skeletal particle size class and occur on similar landforms on treads.
+
+DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
+Drainage class: well drained
+Saturated Hydraulic Conductivity: very high in the Oe horizon, moderately high in the Bw horizon, and moderately high to high in the Bjj and C horizons
+Permeability: rapid to very rapid in the Oe horizon, moderate in the Bw horizon, and moderate to rapid in the Bjj and C horizons
+Runoff: low
+
+USE AND VEGETATION:
+Use: wildlife habitat, recreation, and subsistence
+Native vegetation: dwarf birch, bog blueberry, polytrichum moss, splendid feather moss, marsh Labrador tea, white spruce, lingonberry, greygreen reindeer lichen, star reindeer lichen, reindeer lichen, bluejoint, black crowberry, tealeaf willow, cloudberry, and beauverd spirea.
+
+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: 29 to 104 cm (11 to 41 in)
+
+Ochric epipedon: 0 to 32 cm (0 to 13 in) (Oe and Bw horizons)
+
+Cambic horizon: 4 to 85 cm (2 to 33 in) (Bw and Bjj horizons)
+
+Redoximorphic concentrations: 85 to 200 cm (33 to 79 in) (C horizon)
+
+Cryoturbation: 32 to 85 cm (13 to 33 in) (Bjj horizon)
+
+ADDITIONAL DATA:
+
+User pedon ID: 2021AK180857
+
+National Cooperative Soil Survey
+U.S.A.