LOCATION DOESPRING               NV

Established Series
Rev: LJL/TM/ET
04/2015

DOESPRING SERIES

The Doespring series consists of shallow to a cemented pan, well drained soils that formed in alluvium derived from limestone. The Doespring soils are on backslopes of rock pediments. Slope ranges from 15 to 50 percent. The mean annual precipitation is about 360 millimeters (14 inches) and the mean annual air temperature is about 7 degrees C. (45 degrees F.).

TAXONOMIC CLASS: Loamy-skeletal, carbonatic, mesic, shallow Petrocalcic Calciustolls

TYPICAL PEDON: Doespring very gravelly loam - forest and wildlife habitat. Colors are for dry soil unless otherwise noted. The soil surface is covered by approximately 70 percent gravel, 5 percent cobbles, 1 percent stones with 20 percent discontinuous duff layer.

A--0 to 5 centimeters (0 to 2 inches); dark grayish brown (10YR 4/2) very gravelly loam, very dark grayish brown (10YR 3/2) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky and nonplastic; many very fine and few fine roots; many very fine and few fine tubular pores; hydrophobic for 40 seconds to water; 35 percent gravel, 3 percent cobbles, 1 percent stones; strongly effervescent (45 percent calcium carbonate equivalent in the fine earth fraction); moderately alkaline (pH 8.2); abrupt smooth boundary. (3 to 8 centimeters thick)

ABk--5 to 18 centimeters (2 to 7 inches); dark grayish brown (10YR 4/2) very gravelly loam, very dark grayish brown (10YR 3/2) moist; strong coarse subangular blocky structure; moderately hard, friable, slightly sticky and nonplastic; many very fine and few fine to coarse roots; common very fine and few fine tubular pores; many fine moderately cemented calcium carbonate concentrations, white (10YR 8/1) sharp boundary on bottom of rock fragments; hydrophobic for 6 seconds to water; 50 percent gravel, 2 percent cobbles; violently effervescent (45 percent calcium carbonate equivalent in the fine earth fraction); moderately alkaline (pH 8.2); abrupt wavy boundary. (13 to 25 centimeters thick)

Bk--18 to 46 centimeters (7 to 18 inches); grayish brown (10YR 5/2) very gravelly sandy loam, dark grayish brown (10YR 4/2) moist; weak fine subangular blocky structure; slightly hard, very friable, slightly sticky and nonplastic; many very fine and common fine to coarse roots; many very fine and few fine tubular pores; many fine moderately cemented calcium carbonate concentrations, white (10YR 8/1) sharp boundary on bottom of rock fragments; 55 percent gravel, 3 percent cobbles, 1 percent stones; violently effervescent (50 percent calcium carbonate equivalent in the fine earth fraction); moderately alkaline (pH 8.2); very abrupt wavy boundary.(13 to 30 centimeters thick)

Bkqm--46 to 66 centimeters (18 to 26 inches); white (10YR 8/1) moderately cemented pan, light gray (10YR 7/2) moist; massive; very hard, extremely firm, brittle; petrocalcic horizon; thin (less than 1 millimeter) laminar cap of calcium carbonate and silica; violently effervescent. (15 to 50 centimeters thick)

R--66 centimeters (26 inches); light gray (10YR 7/2) moderately cemented to strongly cemented fanglomerate bedrock, gray (10YR 5/1) moist.

TYPE LOCATION: Clark County, Nevada; 2.4 kilometers (14 miles) south and 2.4 kilometers (1.5 miles) east of Indian Springs, NV, 0.6 miles northeast of Highway 156, Lee Canyon area; 707 meters (2,320 feet) south and 693 meters (2,275 feet) east of the northwest corner of sec. 24, T.18 S., R. 56 E.; USGS Charleston Peak, NV 7.5 minute topographic quadrangle; 36 degrees, 22 minutes, 8.7 seconds North latitude and 115 degrees, 38 minutes, 28.1 seconds West longitude; UTM 11s, 621900e, 4025744n; NAD83.

RANGE IN CHARACTERISTICS:
Soil moisture: Usually dry, moist in late winter and early spring and intermittently moist in the upper part following summer thunderstorms. The soils have an aridic soil moisture regime that borders on ustic.

Soil temperature: 8 to 11 degrees C. (47 to 52 degrees F.).

Depth to base of mollic epipedon: 25 to 50 centimeters (10 to 20 inches).
Depth to calcic horizon: 3 to 8 centimeters (1 to 3 inches).
Depth to petrocalcic horizon: 25 to 50 centimeters (10 to 20 inches).
Depth to bedrock: 50 to 100 centimeters (20 to 40 inches).


Control section
Clay content: 7 to 15 percent.
Rock fragments: 35 to 60 percent, mainly gravel with 0 to 10 percent cobbles and stones.

A horizon:
Value: 3 through 5 dry, 2 or 3 moist.
Chroma: 2 or 3 dry, 1 or 2 moist.
Organic matter: 1 to 3 percent.
Structure: Weak or moderate, medium or coarse.
Consistence: Soft through moderately hard dry, nonplastic or slightly plastic.
Calcium carbonate equivalent of the fine earth: 30 to 50 percent.

ABk horizon:
Value: 3 or 4 dry, 2 or 3 moist.
Chroma: 2 or 3 dry.
Texture: Sandy loam or loam.
Organic matter: 1 to 3 percent.
Structure: Moderate or strong, medium through very coarse.
Consistence: Slightly hard or moderately hard dry, nonplastic or slightly plastic.
Calcium carbonate equivalent of the fine earth: 30 to 50 percent.

Bk horizon:
Value: 4 or 5 dry, 2 through 4 moist.
Chroma: 2 or 3 dry and moist.
Texture: Sandy loam or loam.
Organic matter: 1 to 2 percent.
Structure: Weak or moderate, fine through coarse.
Consistence: Nonplastic or slightly plastic.
Calcium carbonate equivalent of the fine earth: 40 to 60 percent.

Bkqm horizon:
Value: 5 through 8 moist.
Chroma: 1 through 3 dry and moist.
Petrocalcic: Very weakly to moderately cemented pan.

COMPETING SERIES: These are the Leecanyon, Penalto and Penasco series. Leecanyon soils do not have bedrock within 150 centimeters (60 inches). Penalto and Penasco soils have a mean annual soil temperature of 13 to 15 degrees C. (55 to 59 degrees F.), indurated pans and do not have bedrock within 150 centimeters (60 inches).

GEOGRAPHIC SETTING: Doespring soils are on backslopes of rock pediments. Slope ranges from 15 to 50 percent. These soils formed in alluvium derived from limestone. Elevation is 2,015 to 2,535 meters (6,600 to 8,300 feet). The climate is sub-humid continental, cool, with moist winters and occasional summer thundershowers. Mean annual precipitation is 300 to 400 millimeters (12 to 16 inches). The mean annual temperature is 6 to 9 degrees C. (43 to 48 degrees F.) and the frost-free period is 90 to 130 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Buckspring, Seralin and Purob soils. The Buckspring and Purob soils are very gravelly loams, Seralin soils are extremely gravelly loams. Buckspring and Seralin soils occur on mountainsides and are shallow to bedrock. Purob soils occur on fan remnants at lower elevations with blackbrush vegetation.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; very high runoff; moderate permeability; moderately high saturated hydraulic conductivity over very slow permeability in the cemented pan.

USE AND VEGETATION: These soils are used for forest and wildlife habitat. The present vegetation is mainly singleleaf pinyon, Utah juniper, curlleaf mountain mahogany, black sagebrush, desert ceanothus and muttongrass.

DISTRIBUTION AND EXTENT: Mojave Desert of southern Nevada; MLRA 30. These soils are not extensive.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: PHOENIX, ARIZONA

SERIES ESTABLISHED: Clark County Area, Nevada, 2006. The name is coined from the local Deer Creek Spring area on the eastern flank of the Spring Mountains.

REMARKS: Diagnostic horizons and features recognized in this pedon are:

Mollic epipedon - 0 to 46 centimeters (0 to 18 inches) (A, ABk and Bk horizons).
Calcic horizon - 5 to 46 centimeters (2 to 18 inches) (ABk and Bk horizons).
Petrocalcic horizon - 46 to 66 centimeters (18 to 26 inches) (Bkqm horizon).
Depth to bedrock - 66 centimeters (26 inches) (R layer).
Particle-size control section - 25 to 46 centimeters (10 to 18 inches) (Part of the Bk horizon).

Responsibility for this series was transferred from Davis to Phoenix 4/2015. The last revision to the series was 3/2011. ET

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National Cooperative Soil Survey
U.S.A.