LOCATION ALLAIRE WY
Tentative Series
ALB/DPG/DEW
05/2024
ALLAIRE SERIES
Depth class: Deep and Very deep
Drainage class: Well drained
Saturated hydraulic conductivity class: Moderately high
Parent material: Slope alluvium over residuum weathered from interbedded sedimentary rock Geomorphic location: Hillslopes
Slope range: 2 to 15 percent
Mean annual temperature: 4.5 degrees C (40 degrees F)
Mean annual precipitation: 210 millimeters (8 inches)
Taxonomic Class:
Loamy-skeletal, mixed, superactive, frigid Ustic Haplocalcids
Typical Pedon:
Allaire fine sandy loam in rangeland. (Colors are for dry soil unless otherwise noted.)
A--0 to 11 centimeters; pale brown (10YR 6/3) fine sandy loam, olive brown (2.5Y 4/3) moist; moderate medium platy structure; soft, very friable, slightly sticky, nonplastic; many very fine and fine roots throughout; few very fine tubular pores; 7 percent gravels; slightly effervescent; moderately alkaline (pH 8.2); clear smooth boundary.
Bk--11 to 23 centimeters; light yellowish brown (10YR 6/4) silt loam, light olive brown (2.5Y 5/6) moist; weak coarse subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; common very fine and fine roots throughout; few very fine tubular pores; 1 percent gravels and 12 percent channers; 30 percent calcium carbonate concretions on bottom of rock fragments; strongly effervescent; moderately alkaline (pH 8.4); clear smooth boundary.
Bkn--23 to 40 centimeters; light yellowish brown (2.5Y 6/4) very channery silty clay loam, light olive brown (2.5Y 5/4) moist; moderate medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; common very fine and fine roots throughout; few very fine tubular pores; 55 percent channers; 10 percent calcium carbonate concretions on bottom of rock fragments; strongly effervescent; strongly alkaline (pH 8.8); clear smooth boundary.
BCk--40 to 83 centimeters; pale yellow (5Y 7/3) very channery silt loam, olive (5Y 5/4) moist; weak fine subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; common very fine and fine roots throughout; few very fine tubular pores; 45 percent channers; 2 percent calcium carbonate concretions on bottom of rock fragments; slightly effervescent; moderately alkaline (pH 8.2); gradual smooth boundary.
C--83 to 136 centimeters; pale yellow (5Y 7/3) extremely channery silt loam, olive (5Y 5/4) moist; single grain; loose, slightly sticky, slightly plastic; 65 percent channers; slightly effervescent; moderately alkaline (pH 8.0); abrupt smooth boundary.
Cr--136 centimeters; bedrock, paralithic
Type Location:
Sweetwater County, WY
USGS Quadrangle: Chrisman Ranch
Latitude: 41.764981
Longitude: -109.532134
Datum: WGS84
Coordinates source: Hand-held GPS
Range in Characteristics:
Depth to calcic horizon--8 to 21 centimeters
Depth to paralithic contact--105 to 160 centimeters
Particle-size control section (weighted averages):
Clay content--13 to 23 percent
Sand content--17 to 38 percent
Total rock fragments--42 to 60 percent
A horizon(s):
Hue--10YR, 2.5Y, or 5Y
Value--6 dry; 3 or 4 moist
Chroma--3 or 4
Texture (less than 2 mm fraction)--Fine sandy loam or loam
Clay content--10 to 17 percent
Rock fragments--0 to 15 percent; 0 to 15 percent channers, 0 to 15 percent gravels
Calcium carbonate equivalent--3 to 5 percent
Reaction--pH 7.8 to 8.4
Thickness--6 to 11 centimeters
Bk horizon(s):
Hue--10YR, 2.5Y, or 5Y
Value--6 or 7 dry; 4 or 5 moist
Chroma--3 to 6 dry or moist
Texture (less than 2 mm fraction)--Silt loam or loam
Clay content--17 to 25 percent
Rock fragments: 1 to 20 percent; 1 to 20 percent gravels, 0 to 45 percent parachanners
Calcium carbonate equivalent--5 to 25 percent
Reaction--pH 8.0 to 8.5
Thickness--12 to 47 centimeters
Bkn horizon(s) (if present):
Hue--10YR, 2.5Y, or 5Y
Value--6 or 7 dry; 4 or 5 moist
Chrom--3 or 4 dry or moist
Texture (less than 2 mm fraction)--Silty clay loam, clay loam, silt loam, or loam
Clay content--23 to 30 percent
Rock fragments--35 to 55 percent channers
Calcium carbonate equivalent--15 to 25 percent
Sodium absorption ratio--6 to 12
Reaction--pH 8.6 to 9.0
Thickness--0 to 20 centimeters
BCk horizon(s) (when present):
Hue--10YR, 2.5Y, or 5Y
Value--6 to 7 dry; 4 or 5 moist
Chrom--3 or 4 dry or moist
Texture (less than 2 mm fraction)--Silt loam or loam
Clay content--11 to 21 percent
Rock fragments--40 to 60 percent gravels
Calcium carbonate equivalent--3 to 5 percent
Reaction--pH 8.0 to 8.6
Thickness--0 to 50 centimeters
C horizon(s):
Hue--10YR, 2.5Y, or 5Y
Value--6 or 7 dry; 4 to 6 moist
Chroma-- 3 or 4 dry or moist
Texture (less than 2 mm fraction)--Silt loam or loam
Clay content--13 to 23 percent
Rock fragments--55 to 70 percent; 55 to 70 percent channers, 55 to 70 percent gravels
Calcium carbonate equivalent--3 to 5 percent
Reaction--pH 7.8 to 8.5
Thickness--20 to 53 centimeters
Competing Series:
Bronell (CO) - has 45 percent or more fine sand or coarser throughout the control section
Brownsto (WY) - has 35 percent or more fine sand or coarser throughout the control section
Browtine (WY) - has 40 percent or more fine sand or coarser throughout the control section
Bruja (WY) - is moderately deep to paralithic contact
Bruman (UT) - is formed in alluvium derived mainly from basic and intermediate igneous rocks
Buckloaf (WY) - is moderately deep to lithic contact
Vermillion (CO) - is moderately deep to lithic contact
Geographic Setting:
Parent material--slope alluvium over residuum derived from interbedded sedimentary rock Landform--hillslopes
Slope--2 to 8 percent
Mean annual air temperature--2.5 to 7 degrees C (37 to 45 degrees F)
Mean annual precipitation--180 to 230 millimeters (7 to 9 inches)
Frost-free period--50 to 100 days
Elevation--1,980 to 2,070 meters (6,500 to 6,790 feet)
Climate--long, cold winters; cool, moist springs; short, warm summers
Geographically Associated Soils:
None listed.
Drainage and Saturated Hydraulic Conductivity:
Drainage class: Well drained
Saturated Hydraulic Conductivity: 1.5 to 5 m/sec
Use and Vegetation:
Allaire soils are primarily used for rangeland. The potential native vegetation is Indian ricegrass, Wyoming big sagebrush, thickspike wheatgrass, bottlebrush squirreltail, and needle and thread.
Distribution and Extent:
Allaire soils are of small extent in southwestern Wyoming; MLRA 34A.
Soil Survey Region (SSR) Responsible:
Bozeman, Montana
Series Proposed:
Sweetwater County, WY 2021. Allaire series is a coined phrase.
Remarks:
Typical Pedon Taxonomic Features:
Ochric epipedon--0 to 11 centimeters (A horizon)
Calcic horizon--11 to 40 centimeters (Bk and Bkn horizons)
Secondary calcium carbonate accumulation--11 to 83 centimeters (Bk, Bkn, and BCk horizons)
Depth to paralithic contact--136 centimeters
Particle-size control section--25 to 100 centimeters
Taxonomic Version: Keys to Soil Taxonomy, 13th edition (2022)
National Cooperative Soil Survey
U.S.A.