LOCATION LOSINDIOS NMEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, frigid Typic Haplustalfs
TYPICAL PEDON: Losindios sandy loam, on a northeast facing, planar, 5 percent slope in ponderosa pine woodland at an elevation of 7250 feet. (Colors are for dry soil unless otherwise noted.) When described on August 1, 1995 the soil was moist from 2 to 54 inches.
Oi--0 to 1 inch; needle litter
A--1 to 2 inches; brown (10YR 4/3) sandy loam, very dark gray (10YR 3/1) moist; weak fine granular structure; soft, very friable, nonsticky and nonplastic; common very fine roots; slightly acid (pH 6.1); clear smooth boundary. (1 to 4 inches thick)
Bt1--2 to 9 inches; brown (10YR 5/3) sandy clay loam, brown (10YR 4/3) moist; moderate medium and fine subangular blocky structure; hard, firm, slightly sticky and slightly plastic; few very fine and fine roots, many very fine tubular pores; common distinct clay films on faces of ped ; neutral (pH 6.6); clear smooth boundary. (6 to 12 inches thick)
Bt2--9 to 18 inches; light yellowish brown (10YR 6/4) sandy clay loam, yellowish brown (10YR 5/4) moist; moderate medium subangular blocky structure; hard, firm, slightly sticky and slightly plastic; few very fine and fine, common, medium and coarse roots; common very fine tubular pores; common distinct clay films on faces of ped ; neutral (pH 6.8); clear smooth boundary. (9 to 20 inches thick)
Bt3--18 to 37 inches; light yellowish brown (10YR 6/4) sandy clay loam, yellowish brown (10YR 5/4) moist; moderate medium subangular blocky structure; hard, friable, slightly sticky and slightly plastic; few very fine and fine, common, medium and coarse roots; common very fine tubular pores; few faint clay films on faces of ped; neutral (pH 7.2); clear smooth boundary. (6 to 28 inches)
C1--37 to 54 inches; light yellowish brown (10YR 6/4) sandy loam, yellowish brown (10YR 5/4) moist; massive; hard, friable, nonsticky and nonplastic; few very fine and fine, common medium and coarse roots; common very fine tubular pores; neutral (pH 7.2); clear smooth boundary.
C2--54 to 82 inches; light yellowish brown (10YR 6/4) sandy loam, yellowish brown (10YR 5/4) moist; massive; hard, friable, nonsticky and nonplastic; few very fine tubular pores; neutral (pH 7.0).
TYPE LOCATION: Rio Arriba County, New Mexico; about 7.7 miles southwest of El Vado Reservoir; located about 1200 feet south and 1000 feet west of the NE corner of sec. 2, T. 27 N., R. 1 W.; Los Indios Canyon USGS quad; lat. 36 degrees 35 minutes 07 seconds N. and long. 106 degrees 53 minutes 57 seconds W., NAD 27.
RANGE IN CHARACTERISTICS: (Depths given are measured from the mineral soil surface)
Soil moisture: The soil moisture control section is affected by precipitation that is evenly distributed throughout the year with the exception of a significant peak during July and August, and a significant decrease from April through June. June is the driest month. (Typic Ustic moisture regime.)
Mean annual soil temperature: 42 to 45 degrees F
Mean summer soil temperature: 51 to 54 degrees F
Particle-size control section (weighted average):
Clay content: 20 to 35 percent
Sand content: 50 to 65 percent
Rock fragments:
Content: 0 to 10 percent
Size: gravel
Kind: subangular to rounded arkosic sandstone
A horizon:
Value: 2 to 4, dry or moist
Chroma: 1 to 3, dry or moist
Clay content: 10 to 20 percent
Rock fragments:
Content: 0 to 10 percent
Size: gravel
Kind: subangular to rounded arkosic sandstone
Reaction: slightly acid to neutral
Bt horizon:
Hue: 7.5YR or 10YR
Value: 4 to 6, dry or moist
Chroma: 3 to 4, dry or moist
Clay content: 18 to 35 percent
Sand content: 50 to 65 percent
Rock fragments:
Content: 0 to 10 percent
Size: gravel
Kind: subangular to rounded arkosic sandstone
Reaction: slightly acid to neutral
C horizon: (not in all pedons)
Value: 4 to 6, dry or moist
Chroma: 4 to 6, dry or moist
Texture: sandy loam, sandy clay loam
Clay content: 10 to 24 percent
Rock fragments:
Content: 0 to 10 percent
Size: gravel
Kind: subangular to rounded arkosic sandstone
Reaction: moderately acid to neutral
COMPETING SERIES: These are the Alderon, Allens Park, Bayerton, Belltower, Elbeth, Elbuck, Elmark, Hoyt, Jemco, Kunz, Lumpgulch, Northrim, Plome, Rule, Shoemaker, Sweetweed, and Tunitcha series.
Alderon, Allens Park, Bayerton, Belltower, Elmark, Jemco, Lumpgulch, Shoemaker, Tunitcha soils all have bedrock within 60 inches.
Elbeth soils have albic horizons.
Elbuck soils have greater than 15 percent rock fragments throughout.
Hoyt soils have rock fragments derived from igneous rock.
Kunz soils have less than 50 percent sand in the argillic horizon, and have a moisture regime that borders the xeric intergrades.
Northrim soils have less than 50 percent sand in the argillic horizon.
Plome and Rule soils have hue of 5YR or 10R in the argillic horizon.
Sweetweed soils have rock fragments derived from volcanic mudflow breccia.
GEOGRAPHIC SETTING:
Parent material: alluvium derived from arkosic sandstone and shale
Landform: toeslopes and valleys
Slopes: 1 to 15 percent
Elevation: 7,000 to 7,800 feet
Mean annual temperature: 42 to 45 degrees F
Mean annual precipitation: 16 to 20 inches
Precipitation pattern: Precipitation falls mostly during the months of November through March and July through October. June is the driest month. Total snowfall averages about 4 to 5 feet with snowmelt lasting into April.
Frost-free period: 80 to 100 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Jaythree, Jicarilla, and Ishkoten soils. The Jaythree soils have mollic epipedons and are on similar positions. The Jicarilla soils have mollic epipedons and seasonal water tables and are on lower valley slopes. The Ishkoten soils are moderately deep and are on backslopes.
DRAINAGE AND PERMEABILITY: Well drained, medium runoff, moderate permeability.
USE AND VEGETATION: The major uses are commercial timber and wildlife habitat. The native plant community is ponderosa pine, Gambel's oak, mountain muhly, Arizona fescue.
DISTRIBUTION AND EXTENT: Rio Arriba County, New Mexico ; MLRA 48A; small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Bozeman, Montana
SERIES ESTABLISHED: Rio Arriba County, New Mexico, Jicarilla Apache Area, Parts of Rio Arriba and Sandoval Counties Soil Survey, 2000. The name Losindios is taken from a local canyon.
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 2 to 22 inches. (Bt1, Bt2, Bt3 horizons)
Ochric epipedon: The zone from 1 to 2 inches. (A horizon)
Argillic horizon: The zone from 2 to 37 inches. (Bt1, Bt2, Bt3 horizons)
Other features: the profile is noncalcareous to a depth of 60 inches or more
The assignment of the cation-exchange activity class is supported by lab sample number S92NM-039-005, Lincoln National Laboratory.
Taxonomic Version: Second Edition, 1999