LOCATION KIMROSE                 AZ

Established Series
Rev. DJB/CEM
04/2017

KIMROSE SERIES

The Kimrose series consists of very shallow or shallow to hardpan, well drained soils formed in mixed alluvium dominantly from gneiss, schist and granite. Kimrose soils are on fan piedmonts and fan remnants with slopes of 1 to 45 percent. The mean annual precipitation is about 13 inches. The mean annual air temperature is about 65 degrees F.

TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, thermic, shallow Calcic Petrocalcids

TYPICAL PEDON: Kimrose very gravelly sandy loam - rangeland (colors are for dry soil unless otherwise noted).

A--0 to 2 inches; strong brown (7.5YR 5/6) very gravelly sandy loam, dark brown (10YR 3/3) moist; weak thin platy structure; soft, very friable, nonsticky and nonplastic; common very fine and fine roots; common very fine and fine interstitial and tubular pores; 35 percent gravel; strongly effervescent, 8 percent calcium carbonate equivalent; slightly alkaline (pH 7.6); abrupt smooth boundary. (1 to 7 inches thick)

Bk1--2 to 12 inches; strong brown (7.5YR 5/6) very gravelly sandy clay loam, brown (10YR 4/3) moist; weak medium subangular blocky structure; soft, very friable, nonsticky and nonplastic; common very fine, fine and coarse roots; common very fine and fine interstitial and tubular pores; 40 percent gravel with few distinct continuous carbonate coatings; few medium irregular soft masses and common threads of calcium carbonate; violently effervescent, 15 percent calcium carbonate equivalent; slightly alkaline (pH 7.8); abrupt wavy boundary. (0 to 18 inches thick)

Bk2--12 to 20 inches; white (7.5YR 8/1) strongly cemented extremely gravelly sandy loam, white (7.5YR 8/1) moist; massive; hard, firm, nonsticky and nonplastic; few very fine and fine roots; 60 percent gravel and 10 percent cobble with few distinct continuous carbonate coatings; violently effervescent, 36 percent calcium carbonate equivalent; moderately alkaline (pH 8.4); abrupt wavy boundary. (0 to 20 inches thick)

Bkkm--20 to 60 inches; white (7.5YR 8/1) indurated petrocalcic with a thin laminar cap; extremely hard; few very fine roots in fractures.

TYPE LOCATION: Pima County, Arizona; west of the Baboquivari Mountains and south of Hiavanan Nakya on the Tohono O'odham Indian Nation; 31 degrees 56 minutes 20 seconds north latitude and 111 degrees 41 minutes 35 seconds west longitude.

RANGE IN CHARACTERISTICS:

Soil Moisture: Intermittently moist in some part of the soil moisture control section during July through September and December through February. Driest during May and June. Ustic aridic soil moisture regime.

Soil Temperature: 59 to 69 degrees F.

Rock Fragments: 35 to 80 percent gravel; some pedons contain cobbles, stones, and boulders

Reaction: Neutral to strongly alkaline

Depth to petrocalcic horizon: 7 to 20 inches

Calcium carbonate equivalent: 5 to 20 percent

Clay content: Averages 18 to 35 percent in the particle size control section

A horizon
Hue: 7.5YR, 10YR
Value: 3 to 6 dry, 2 to 5 moist
Chroma: 1 to 6 dry, 1 to 4 moist

B horizon (not present in all pedons)
Hue: 7.5YR, 10YR
Value: 3 to 8, dry or moist
Chroma: 1 to 6, dry or moist
Texture: sandy loam, sandy clay loam, loam, clay loam

Bkkm horizon
Cementation: strongly cemented to indurated

COMPETING SERIES: These are the Delnorte (TX), Missile (NM), Pedregosa (AZ), Winkel (UT), and Yurm (NV) series. Delnorte, Winkel, and Yurm are in the Typic aridic moisture regime. Winkel has bedrock at 20 to 40. Missile, Pedregosa, and Yurm have less than 18 percent clay.

GEOGRAPHIC SETTING: The Kimrose soils are on fan piedmonts and fan remnants. Slopes range from 1 to 60 percent. They form in alluvium from gneiss, schist and granite. Elevation ranges from 2,800 to 6,790 feet. The mean annual precipitation is 12 to 17 inches. The mean annual air temperature ranges from 57 to 67 degrees F. The frost-free period is about 180 to 250 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Nolam, Whitehouse, Hathaway, Caralampi, and Selevin soils. These soils are very deep and lack a petrocalcic horizon.

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

USE AND VEGETATION: Kimrose soils are used for livestock grazing and wildlife habitat. Vegetation includes bush muhly, black grama, slender janusia, fluffgrass, spidergrass, creosotebush, littleleaf paloverde and ocotillo.

DISTRIBUTION AND EXTENT: Southern Arizona and southern New Mexico. This series is of moderate extent. MLRA 41 and 42.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona

SERIES ESTABLISHED: Pima County, Arizona; Soil survey of Tohono O'odham Indian Reservation, AZ, Parts of Maricopa, Pima and Pinal Counties; 1993.

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

Ochric epipedon - the zone from 0 to 2 inches (A horizon)

Calcic horizon - the zone from 2 to 20 inches (Bk1, Bk2 horizons)

Petrocalcic horizon - the zone from 20 to 60 inches (Bkm horizon)

Classified according to Soil Taxonomy Second Edition, 1999; Keys to Soil Taxonomy, Twelfth Edition, 2014.

Updated competing series section 3/17/08, CEM

Revised for the correlation of AZ661, 2/2009, WWJ

Revised for the correlation of Graham County, AZ, Southwestern Part; March, 2011, WWJ

Revised for the correlation of White Sands Missile Range, New Mexico; October, 2014, NMS

Revised for the correlation of Carlsbad Caverns National Park, New Mexico; October, 2016, NMS

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National Cooperative Soil Survey
U.S.A.