LOCATION CONDRONE NMInactive Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Ustic Haplargids
TYPICAL PEDON: Condrone sand--rangeland. (Colors are for dry soil unless otherwise stated.)
A--0 to 2 inches; brown (7.5YR 5/4) crushed, sand, dark brown (7.5YR 3/4) crushed, moist; 3 percent clay; single grain; nonsticky, nonplastic; noneffervescent, by HCl, 1 normal; neutral, pH 7.0, Phenol red; abrupt smooth boundary. (1 to 4 inches thick)
2Bt1--2 to 11 inches; reddish brown (5YR 5/4) crushed, sandy loam, dark reddish brown (5YR 3/4) crushed, moist; 14 percent clay; moderate fine subangular blocky structure; slightly sticky, slightly plastic; carbonate coats on rock fragments and 20 percent discontinuous distinct clay films on all faces of peds; 10 percent subangular 0.1- to 3-inch fragments; noneffervescent, by HCl, 1 normal; neutral, pH 7.0, Phenol red; clear smooth boundary.
2Bt2--11 to 19 inches; reddish brown (2.5YR 4/4) crushed, sandy clay loam, dark reddish brown (2.5YR 3/4) crushed, moist; 24 percent clay; moderate fine subangular blocky structure; moderately sticky, moderately plastic; carbonate coats on rock fragments and 35 percent discontinuous distinct clay films on all faces of peds; 12 percent subangular 0.1- to 3-inch fragments; noneffervescent, by HCl, 1 normal; neutral, pH 7.0, Phenol red; clear smooth boundary.
2Bt3--19 to 30 inches; reddish brown (2.5YR 5/4) crushed, sandy clay loam, dark reddish brown (2.5YR 3/4) crushed, moist; 24 percent clay; moderate fine subangular blocky structure; moderately sticky, moderately plastic; carbonate coats on rock fragments and 20 percent discontinuous distinct clay films on all faces of peds; 10 percent subangular 0.1- to 3-inch fragments; noneffervescent, by HCl, 1 normal; neutral, pH 7.2, Phenol red; clear smooth boundary.
3Bt4--30 to 80 inches; yellowish red (5YR 4/6) crushed, very gravelly sandy clay loam, dark reddish brown (5YR 3/4) crushed, moist; 27 percent clay; moderate fine subangular blocky structure; moderately sticky, moderately plastic; carbonate coats on rock fragments and 50 percent discontinuous prominent clay films on all faces of peds; 50 percent subangular 0.1-to 3-inch fragments; strongly effervescent, by HCl, 1 normal; slightly alkaline, pH 7.6, Phenol red.
TYPE LOCATION: Dona Ana County, New Mexico; approximately 6.8 miles south and 3.1 miles east of White Sands; 2,300 feet east and 500 feet north of the southwest corner of sec. 22, T. 23 S., R. 5 E.. USGS Davies Tank topographic quadrangle; latitude 32 degrees 17 minutes 12.55 seconds north and longitude 106 degrees 25 minutes 12.45 seconds west. UTM zone 13, 366273E, 3572924N; NAD 27.
RANGE IN CHARACTERISTICS:
Soil moisture: An Ustic aridic moisture regime. The moisture control section is usually dry in all parts less than three-fourths of the time that the soil temperature exceeds 41 degrees F.
Mean annual soil temperature: 61 to 65 degrees F.
Depth to argillic horizon: 1 to 4 inches
Particle-size control section (weighted average):
Clay content: 18 to 27 percent
Coarse fragment content: 5 to 15 percent
A horizon:
Hue: 5YR or 7.5YR
Value: 5 or 6 dry, 3 or 4 moist
Chroma: 3 to 5, dry or moist
Bt horizon:
Hue: 2.5YR or 5YR
Value: 4 or 5 dry, 3 or 4 moist
Chroma: 4 to 6 dry, 4 or 5 moist
Texture: sandy loam or sandy clay loam
Texture modifier: gravelly or very gravelly
Coarse fragments: mixed igneous fragments; 5 to 55 percent gravel size fragments
COMPETING SERIES: These are the
Baboquivari (AZ),
Courtland (AZ), Triomass (TX), and
Walkon (NM) series.
The Baboquivari and Courtland soils The Baboquivari soils are noneffervescent throughout the profile and have mean annual soil temperature of 65 to 69 degrees. The Courtland soil contain 5 to 15 percent calcium carbonates, And receive greater than 12 inches precipitation and greater than 13 percent of the total precipitation during the months of January, February, and March.
The Triomass soils have moderately alkaline Btk horizons.
The Walkon soils are moderately deep to bedrock.
GEOGRAPHIC SETTING:
Parent material: eolian sands over alluvium from mixed igneous rocks
Landform: inset fans on the fan piedmont
Slope: 2 to 5 percent
Mean annual temperature: 60 to 64 degrees
Mean annual precipitation: 10 to 12 inches
Precipitation pattern: precipitation falls mostly during the months of July through September. The driest months are March and April. Precipitation during the months of January, February, and March is less than 13 percent of the total.
Frost-free period: 170 to 210 days
Elevation: 4,200 to 5,300 feet
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Agustin and
Reyab series.
The Agustin soils are coarse-loamy and are on similar positions.
The Reyab soils are fine-silty and are on similar positions.
DRAINAGE AND PERMEABILITY: Well drained. Permeability is moderate. Runoff is low.
USE AND VEGETATION: Used for livestock grazing. Vegetation is of the desert grassland type consisting of black grama, hairy grama, bush muhly, and threeawn.
DISTRIBUTION AND EXTENT: Southern New Mexico; LRR D, MLRA 42. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Otero County, (Ft. Bliss) New Mexico; 2001.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 2 to 22 inches. (2Bt1, 2Bt2, and 3Bt3 horizons)
Ochric epipedon: The zone from 0 to 7 inches. (A and 2Bt1 horizons mixed to 7 inches).
Argillic horizon: The zone from 2 to 80 inches. (2Bt1, 2Bt2, 2Bt3, and 2Bt4 horizons)