From: Subject: Official Series Description - ARBUCKLE Series Date: Wed, 7 Jul 2010 13:30:42 -0700 MIME-Version: 1.0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Location: http://ortho.ftw.nrcs.usda.gov/osd/dat/A/ARBUCKLE.html X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5931 Official Series Description - ARBUCKLE Series

LOCATION ARBUCKLE           =
CA

Established Series
RD. = GMK/LCL/RWK/MAV/WRR/SBS/KP/DWB
05/2003

ARBUCKLE SERIES

The Arbuckle series consists of very deep, = well=20 drained soils that formed in alluvial materials from mainly conglomerate = and=20 metasedimentary rocks. Arbuckle soils are on low terraces, and have = slopes of 0=20 to 75 percent. The mean annual precipitation is about 508 millimeters = (20=20 inches) and the mean annual air temperature is about 16 degrees C (61 = degrees=20 F).

TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Typic = Haploxeralfs

TYPICAL PEDON: Arbuckle sandy loam under annual grasses and = forbs,=20 when described on September 15, 1992 the soil was dry to 86 centimeters = (34=20 inches) and slightly moist below. (Colors are for dry soil unless = otherwise=20 noted).

A1--0 to 13 centimeters (0 to 4 inches); light yellowish brown = (10YR=20 6/4) sandy loam, dark yellowish brown (10YR 4/4) moist; moderate medium=20 subangular blocky parting to moderate medium granular structure; = slightly hard,=20 very friable, slightly sticky and nonplastic; many very fine roots; many = very=20 fine interstitial and few very fine tubular pores; gravel content 10 = percent;=20 slightly acid (pH 6.2); abrupt smooth boundary.=20

A2--13 to 25 centimeters (4 to 10 inches); light yellowish = brown (10YR=20 6/4) sandy loam, dark yellowish brown (10YR 4/4) moist; moderate medium = angular=20 blocky structure; slightly hard, friable, slightly sticky and slightly = plastic;=20 common very fine roots; common very fine interstitial and few very fine = tubular=20 pores; gravel content 10 percent; slightly acid (pH 6.2); clear smooth = boundary.=20

A3--25 to 43 centimeters (10 to 17 inches); light yellowish = brown=20 (10YR 6/4) sandy loam, dark yellowish brown (10YR 4/4) moist; moderate = medium=20 angular blocky structure; slightly hard, very friable, slightly sticky = and=20 slightly plastic; few very fine roots; common very fine interstitial and = few=20 very fine tubular pores; gravel content 10 percent; slightly acid (pH = 6.1);=20 clear smooth boundary.=20

Bt1--43 to 66 centimeters (17 to 26 inches); yellowish brown = (10YR=20 5/4) gravelly sandy loam, dark yellowish brown (10YR 3/4) moist; = moderate medium=20 angular blocky structure; slightly hard, very friable, slightly sticky = and=20 slightly plastic; few very fine roots; common very fine tubular pores; = common=20 thin clay films on ped faces; 25 percent gravel; slightly acid (pH 6.2); = clear=20 smooth boundary.=20

Bt2--66 to 86 centimeters (26 to 34 inches); yellowish brown = (10YR=20 5/4) gravelly sandy clay loam, dark yellowish brown (10YR 3/4) moist; = moderate=20 fine subangular blocky structure; slightly hard, friable, slightly = sticky and=20 slightly plastic; few very fine roots; common very fine tubular pores; = few thin=20 clay films on ped faces; 30 percent gravel; slightly acid (pH 6.3); = clear smooth=20 boundary.=20

Bt3--86 to 112 centimeters (34 to 44 inches); yellowish brown = (10YR=20 5/4) gravelly loam, dark yellowish brown (10YR 4/4) moist; moderate fine = subangular blocky structure; slightly hard, firm, sticky and slightly = plastic;=20 few very fine roots; common very fine tubular pores; many thin clay = films on ped=20 faces; 30 percent gravel with calcium carbonate pendants on lower side = of=20 gravels; slightly acid (pH 6.3); clear smooth boundary.

BC--112 to 173 centimeters (44 to 68 inches); yellowish brown = (10YR=20 5/4) very gravelly sandy clay loam, dark yellowish brown (10YR 4/4) = moist;=20 massive; loose, loose, non sticky and non plastic; many very fine = interstitial=20 pores; 50 percent gravel with calcium carbonate pendants on lower side = of=20 gravels; slightly acid (pH 6.5).

TYPE LOCATION: Colusa County, California; about 6 miles west = of=20 Arbuckle CA; 2100 feet west and 1200 feet north of the SE corner of = section 35=20 T.13 N, R.3 W, MDB&M; 39 degrees, 00 minutes, 55 seconds north = latitude and=20 122 degrees, 09 minutes, 32 seconds west longitude;.USGS Cortina Creek = CA=20 Quadrangle.

RANGE IN CHARACTERISTICS:

Soil Temperature - The mean annual soil temperature is 16 to 18 = degrees C (60=20 to 65 degrees F) and the soil temperature is above 8 degrees C (47 = degrees F)=20 all year.

Soil Moisture - The soil between the depths of 20 to 66 centimeters = (8 to 26=20 inches) is dry in all parts from May 15 to October 31 and moist in some = or all=20 parts from November 1 to May 15.

Organic matter - Assumed to be less than 1 percent from data from = similar=20 soils on similar geomorphic positions.

Solum thickness: more than 100 centimeters (40 inches)

Control section - upper 51 centimeters (20 inches) of the Bt horizon; = Clay=20 content weighted average 18 to 32 percent, gravel content weighted = average 3 to=20 35 percent.

The A horizon - Hue: 10YR
Value dry: 5,6
Value moist: = 3,4,2
Chroma=20 dry: 2,3,4
Chroma moist: 2,3,4,1
Additional Hue 7.5YR
Value = dry: 5,6=20
Value moist: 4,5,6
Chroma dry: 3,4
Chroma moist: = 4
Texture: sandy=20 loam, fine sandy loam, loam or their gravelly equivalents
Coarse = fragments: 3=20 to 35 percent
Reaction: slightly acid to neutral

The Bt horizon - Hue: 10YR
Value dry: 5,6,7
Value moist: = 3,4
Chroma=20 dry: 3,4
Chroma moist: 3,4,2

Additional Hue 7.5YR
Value dry: 5,6,7
Value moist: = 3,4,5
Chroma dry:=20 4,6
Chroma moist:3,4

Texture: loam, sandy loam, sandy clay loam, clay loam and gravelly=20 equivalents.
Coarse fragments: 3 to 35 percent gravel
Clay = content: 18 to=20 32 percent with less than 20 percent coarse and very coarse = sand
Reaction:=20 slightly acid to slightly alkaline

The BC horizon - Hue: 10YR; 7.5YR
Value dry: 5,6, 7
Value = moist: 5,4,3=20
Chroma dry: 4,3
Chroma moist: 4,3
Texture: stratified, = ranging from=20 sandy clay loam to very gravelly loamy sand
Reaction is moderately = acid to=20 slightly alkaline.
Coarse fragments: 45 to 80 percent gravel

COMPETING SERIES: These are Accele= rator,=20 Blasing= ame,=20 Boga, = Borden,= Bressa,= Crevis= creek,=20 Esparto, Fallbroo= k, Loemston= e, Montpe= llier,=20 Nodhill, Pomo, Ramona,= Sesame,= Snelling<= /A>, Tivy, Wasioja and Wyman = series.=20 Accelerator is over 100 centimeters (40 inches) to paralithic contact, = has pHs=20 below 7.8, and is non-effervescent. Blasingame has pHs below 7.8, are=20 non-effervescent and have 5YR hues. Boga soils have a 2Cd horizon and=20 redoximorphic features in the lower Bt and 2Cd horizons. Borden is over = 100=20 centimeters (40 inches) to paralithic contact, has pHs below 7.8, is = slightly=20 effervescent and has slopes of less than 5 percent. Bressa has pHs below = 7.8, is=20 not effervescent in the surface, has hues to 5YR. and has slopes steeper = than 30=20 percent. Creviscreek is moderately well drained and has pHs below 7.3. = Esparto=20 has a lithic contact below 100 centimeters (40 inches), has pHs below = 7.3 is=20 non-effervescent and has slopes below 5 percent. Fallbrook has a = paralithic=20 contact below 102 centimeters (40 inches) and has 5YR hues in the = subsoil.=20 Loemstone soils have a paralithic contact at 100 to 150 centimeters (40 = to 60=20 inches). Montpellier, Ramona and Wyman are deeper than 1520 centimeters = (60=20 inches), have pHs below 7.3 and are non-effervescent with 5YR hues in = the B=20 horizon. Nodhill has dense unconsolidated sediments at 50 to 100 = centimeters (20=20 to 40 inches) and a Btk horizon which is violently effervescent. Pomo = has a=20 lithic contact below 50 centimeters (40 inches), pHs below 7.2 and is=20 non-effervescent, with slopes as steep as 50 percent. Seasame has = weathered=20 parent rock (Granite), pHs below 7.3 and is non-effervescent, with = slopes=20 steeper than 30 percent. Snelling is deeper than 150 centimeters (60 = inches),=20 has pHs below 7.8, is non-effervescent, and has coarser surface textures = with=20 less than 20 percent clay content. Tivy is deeper than 150 centimeters = (60=20 inches), has pHs below 7.3 and is non-effervescent, with chromas below = 3.=20 Wasioja is deeper than 150 centimeters (60 inches), is non-effervescent = and has=20 less than 20 percent clay in parts of the A horizon.

GEOGRAPHIC SETTING: Arbuckle soils are at elevations of 27 to = 610=20 meters ( 90 to 2,000 feet) and have slopes of 0 to 75 percent, on low = terraces.=20 The sediments are gravelly alluvium. They are high in quartz and chert = and have=20 come mainly from conglomerate and metasedimentary rocks. The climate is = dry=20 subhumid mesothermal with hot dry summers and cool moist winters. Mean = annual=20 precipitation is 25 to 89 centimeters (10 to 35 inches). Mean annual = temperature=20 is 14 to 18 degrees C (57 to 64 degrees F.), average January temperature = about 7=20 degrees C (45 degrees F.), and average July temperature about 28 degrees = C (83=20 degrees F.) Frost-free season ranges from 152 to 280 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Esparto soils=20 and the Garretso= n, Haire, = Hillgate<= /A>, Tehama,= Wyo, Yolo and = Zamora = soils.=20 Garretson and Yolo soils lack Bt horizons. Haire and Hillgate soils have = Bt=20 horizons with more than 35 percent clay. Tehama soils have fine-silty = textural=20 control sections with 11 to 15 percent fine sand and coarser. Wyo and = Zamora=20 soils have Bt horizons with moist values of less than 4.

DRAINAGE AND PERMEABILITY: Well drained; negligible to high = runoff;=20 moderately slow to slow permeability.

USE AND VEGETATION: Used for dryland and irrigated orchards, = irrigated=20 row and field crops, dryfarmed grain, and for range. Natural vegetation = is=20 annual grasses and forbs, either alone or as an understory with blue = oaks in=20 stands ranging from open to dense.

DISTRIBUTION AND EXTENT: Along the west side of the Sacramento = Valley=20 and the intermountain valleys of the Coast Range and valleys of Southern = California. The series is extensive. MLRA 17 (and 14).

MLRA OFFICE RESPONSIBLE: Davis, California

SERIES ESTABLISHED: Woodland Area, California, 1909.

REMARKS:

Ochric epipedon: A1, A2, A3 horizons

Argillic horizon: 43 to 112 centimeters (17 to 44 inches): Bt1, Bt2, = Bt3 with=20 a weighted average clay content of 46 to 81 centimeters (18 to 32 = inches) in the=20 upper 51 centimeters (20 inches) of the argillic horizon.

Edit log: 04/2003 Proposed edits for use in Butte County. Range in=20 Characteristics; in the A horizon added value moist 2 and chroma moist = 1; in the=20 Bt chroma moist 2, and in additional hue value moist 5; to the BC = horizon added=20 range for coarse fragments 45 to 80 percent gravel.=20

Found on remnant terraces and formed from alluvium from Stony Creek, = the Red=20 Bluff and Laguna formations. Is used immediately east of the Sacramento = River=20 and borders the Butte basin to the east.

ADDITIONAL DATA: Numerous pedons analyzed by UC-Davis. NSSL = pedon=20 S73CA-079-002

National Cooperative Soil Survey
U.S.A.