LOCATION LANIP                   NV

Established Series
Rev. KH/LJL/ET
09/2015

LANIP SERIES

The Lanip series consists of very deep, well drained soils that formed in mixed alluvium. The Lanip soils are on fan remnants. Slope ranges from 2 to 8 percent. The mean annual precipitation is about 6 inches and the mean annual air temperature is about 60 degrees F.

TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Typic Calciargids

TYPICAL PEDON: Lanip very gravelly sandy loam, rangeland and wildlife habitat. (Colors are for dry soil unless otherwise noted.) The soil surface is partially covered by approximately 50 percent pebbles.

A1--0 to 1 inch; pale brown (10YR 6/3) very gravelly sandy loam, brown (10YR 4/3) moist; weak thick platy structure; soft, very friable, slightly sticky and slightly plastic; common very fine roots; common very fine tubular pores; 50 percent pebbles; moderately alkaline (pH 8.2); clear smooth boundary. (1 to 2 inches thick)

A2--1 to 6 inches; light yellowish brown (10YR 6/4) gravelly sandy loam, dark yellowish brown (10YR 4/4) moist; weak medium subangular blocky structure; soft, very friable, slightly sticky and slightly plastic; common very fine and fine, and few medium roots; common very fine tubular pores; 15 percent pebbles; moderately alkaline (pH 8.2); clear wavy boundary. (1 to 6 inches thick)

Bk--6 to 15 inches; light yellowish brown (10YR 6/4) gravelly loam, dark yellowish brown (10YR 4/4) moist; moderate coarse subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and fine, and few medium roots; many very fine, few fine and medium tubular pores; many fine calcium carbonate coats on underside of rock fragments; 20 percent pebbles; noneffervescent to slightly effervescent; moderately alkaline (pH 8.2); clear wavy boundary. (8 to 22 inches thick)

Btk--15 to 39 inches; brown (7.5YR 5/4) clay loam, brown (7.5YR 4/4) moist; strong fine and medium prismatic structure; hard, friable, moderately sticky and moderately plastic; few very fine and fine roots; common very fine tubular pores; many distinct clay films on faces of peds and lining pores; many fine filaments and seams of calcium carbonate; many fine calcium carbonate coats on underside of rock fragments; 5 percent pebbles; slightly effervescent (11 percent calcium carbonate equivalent in the fine earth fraction); strongly alkaline (pH 8.6); clear wavy boundary. (12 to 26 inches thick)

Bkq1--39 to 48 inches; light yellowish brown (10YR 6/4) gravelly sandy loam, dark yellowish brown (10YR 4/4) moist; moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and few fine roots; common very fine tubular pores; many medium irregularly shaped masses and concretions of calcium carbonate; many medium calcium carbonate and silica coats on the underside of rock fragments; 17 percent pebbles; violently effervescent (11 percent calcium carbonate equivalent in the fine earth fraction); strongly alkaline (pH 8.6); clear wavy boundary. (8 to 10 inches thick)

2Bkq2--48 to 60 inches; light yellowish brown (10YR 6/4) very gravelly sandy loam, dark yellowish brown (10YR 4/4) moist; moderate medium subangular blocky structure; slightly hard, very friable, slightly sticky and slightly plastic; few fine roots; few very fine tubular pores; many medium irregularly shaped masses and concretions of calcium carbonate; many medium calcium carbonate and silica coats on the underside of rock fragments; 50 percent pebbles; violently effervescent (13 percent calcium carbonate equivalent in the fine earth fraction); strongly alkaline (pH 8.6).

TYPE LOCATION: Clark County, Nevada; approximately 4.5 miles west on State Highway 164 (Joshua Tree Highway) and 500 feet north of the highway from Searchlight, Nevada in the north end of Piute Valley; about 705 feet north and 1,290 feet west of the southeast corner of section 24, T. 28 S., R. 62 E.; USGS Searchlight, NV 7.5 minute topographic quadrangle; 35 degrees, 29 minutes, 21 seconds north latitude and 114 degrees, 59 minutes, 40 seconds west longitude; UTM 11, 681926e, 3929140n; NAD 83.

RANGE IN CHARACTERISTICS:

Soil moisture - Usually dry, moist in some part for short periods during winter and early spring and for 10 to 20 days cumulative between July to October following convection storms.
Soil temperature - 59 to 65 degrees F.
Depth to base of argillic horizon - 22 to 56 inches.
Depth to secondary calcium carbonate - 2 to 8 inches.
Depth to calcic horizon 22 to 56 inches.

Control section - Percent clay: 20 to 35 percent.
Rock fragments: Averages 5 to 20 percent.

A horizons - Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 3 or 4.

Bk horizon - Value: 5 or 6 dry, 3 or 4 moist.
Chroma: 3 or 4.
Texture: Sandy loam or loam.
Clay content: 5 to 15 percent.
Rock fragments: 15 to 25 percent.
Effervescence: Noneffervescent through violently effervescent.
Reaction: Moderately alkaline or strongly alkaline.
Calcium carbonate equivalent in the fine earth fraction: 1 to 5 percent.

Btk horizon - Value 5 or 6 dry.
Texture: Sandy clay loam or clay loam.
Clay content: 20 to 35 percent.
Rock fragments: 5 to 30 percent.
Reaction: Moderately alkaline or strongly alkaline.
Calcium carbonate equivalent in the fine earth fraction: 5 to 15 percent.

Bkq horizons Hue: 7.5 YR or 10YR.
Value: 5 or 6 dry.
Chroma: 3 and 4.
Clay content: 4 to 15 percent.
Texture: Loamy sand to sandy loam.
Rock fragments: 15 to 50 percent.
Structure: Subangular blocky or massive.
Reaction: Moderately alkaline or strongly alkaline.
Calcium carbonate equivalent in the fine earth fraction: 5 to 15 percent.

COMPETING SERIES: These are the Blackmagic (CA), Brenda (NM), Cornville (AZ), Dona Ana (NM), Elizario (NM), Hap (NM), Jagerson (AZ), Kidwell (NV), Madurez (NM), Mcnew (NM), Mohave (AZ), Nutt (NM), Poachie (AZ), and Tres Hermanos (NM) series. Brenda, Cornville, Dona Ana, Elizario, Hap, Madurez, Mcnew, Mohave, Nutt, Poachie, and Tres Hermanos soils have significant peaks of summer moisture that affect the moisture control section and are not consistent with the moisture distribution of the Mojave Desert. Blackmagic soils have Btky horizons and Btk2 horizons with 30 to 55 percent rock fragments. Jagerson soils are 14 to 24 inches to the base of the argillic horizon and do not have Bk horizons above the argillic. Kidwell soils have non-calcareous argillic horizons and do not have Bk horizons above the argillic.

GEOGRAPHIC SETTING: Lanip soils are on fan remnants. These soils are formed in mixed alluvium. Slope ranges from 2 to 8 percent. Elevations are 2,400 to 4,200 feet. The climate is hot and arid with warm, moist winters and hot, dry summers. The mean annual precipitation is 5 to 7 inches; mean annual air temperature is 57 to 63 degrees F., and the frost-free season is 180 to 240 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Arizo, Filaree, Kidwell, Nickel, Orwash and Tenwell series. Arizo soils have sandy-skeletal particle-size control section and lack an argillic horizon. Filaree soils have coarse-loamy particle-size control section and lack an argillic horizon. Kidwell soils have a calcic horizon. Nickel soils lack an argillic horizon, have a calcic horizon and a loamy-skeletal particle-size control section. Orwash soils have a sandy particle-size control section. Tenwell soils have a moderately deep duripan.

DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderately slow permeability.

USE AND VEGETATION: These soils are used for rangeland and wildlife habitat. The present vegetation is mainly big galleta, bush muhly, Indian ricegrass, creosotebush, ephedra and winterfat.

DISTRIBUTION AND EXTENT: Mojave Desert of southern Nevada. MLRA 30. These soils are moderately extensive.

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

SERIES ESTABLISHED: Clark County Area, Nevada, 2006. Proposed in Clark County, Nevada, 1993. The name is coined.

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

Ochric epipedon - 0 to 6 inches (A1 and A2 horizons).
Argillic horizon - 15 to 39 inches (Btk horizon).
Calcic horizon 39 to 60 inches (Bkq1 and 2Bkq2 horizons).
Particle-size control section - 15 to 35 inches (upper part of the Btk horizon).

Responsibility for this series was transferred from Davis to Phoenix 9/2015. The last revision to the series was 9/2006. ET

---

National Cooperative Soil Survey
U.S.A.