IDENTIFIERS
Current Taxon Name (Soil Name):
Lorack
OSD
Series Extent
User Site ID:
S1977CA057003
User Pedon ID:
77CA057003
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
78P0069
NCSS Pedon Lab Data NASIS Record ID -
45079
Print Date:
11/21/2024
LOCATION
Location In Web Soil Survey
AOI is roughly a square mile and pedon is marked in the center.
Location in SoilWeb
Location in Google Maps
Std. Latitude:
39.3998871
Std. Longitude:
-120.6676941
Datum:
WGS84
Township:
18N
Range:
12E
Section:
30
PLSS Details:
SE 1/4
Location Description:
Nevada County, California.
State:
California
County:
CA057—Nevada
MLRA:
22A—Sierra Nevada and Tehachapi Mountains
PEDON
Current Taxonomic Class:
Loamy-skeletal, isotic, frigid Andic Haplohumults
Current Taxon Kind:
series
Pedon Type:
OSD pedon
Pedon Purpose:
full pedon description
Pedon Record Orgin:
Converted from SSL-CMS data
Pedon #:
3
Correlated Information:
Soil Name -
Lorack
Classificaton Date -
2/1/2010
Sampled As Information:
Soil Name -
Lorack
Taxonomic Class -
Loamy-skeletal, mixed, frigid Ultic Haploxeralf
Taxon Kind -
series
Classificaton Date -
9/1/1977
Soil Taxonomic Edition -
eighth edition
Moisture Class -
xeric
Dynamic Soil Properties:
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Drainage Class:
well
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
9/1/1977 (actual site observation date)
Surface Cover Properties:
Site Obs. Cover Kind 1 -
tree cover
Site Obs. Cover Kind 2 -
hardwoods
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Site Erosion Accelerated:
water erosion
Setting and Climate
Slope
Slope Length USLE
Upslope Length
Elev.
Corr. Elev
Aspect
MAP
REAP
FFD
MAAT
MSAT
MWAT
MAST
MSST
MWST
MFFP
PE Index
Climate Station ID
Climate Station Name
Climate Station Type
%
m
degrees
mm
mm
C
mm
5
—
—
1828
—
270
—
—
—
—
—
—
—
—
—
—
—
—
—
—
O1—0 to 3 centimeters (0.0 to 1.2 inches); undecomposed organic matter; fragments. Lab sample # 78P00358
A1—3 to 10 centimeters (1.2 to 3.9 inches); dark brown (7.5YR 3/4) interior, dark brown (7.5YR 3/2) interior, moist; fine sandy loam; 10 percent silt; weak fine and medium granular structure; soft, very friable, nonsticky, nonplastic; 2.5 very fine roots; 5.5 very fine and fine interstitial pores; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary. Lab sample # 78P00359. common very fine roots
A3—10 to 23 centimeters (3.9 to 9.1 inches); strong brown (7.5YR 5/6) interior, dark brown (7.5YR 3/4) interior, moist; fine sandy loam; 10 percent silt; weak very fine and fine subangular blocky structure; soft, very friable, nonsticky, slightly plastic; 5.5 very fine and fine roots and 2.5 medium and coarse roots; 5.5 very fine and fine interstitial and 0.5 very fine tubular pores; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; slightly acid, pH 6.3, hellige-truog; clear wavy boundary. Lab sample # 78P00360. many very fine and fine roots; common medium and coarse roots
B1—23 to 52 centimeters (9.1 to 20.5 inches); strong brown (7.5YR 5/6) interior, strong brown (7.5YR 4/6) interior, moist; loam; 20 percent silt; weak very fine and fine subangular blocky structure; soft, very friable, nonsticky, slightly plastic; 5.5 very fine and fine roots and 2.5 medium and coarse roots; 2.5 very fine and fine tubular and 5.5 very fine and fine interstitial pores; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # 78P00361. many very fine and fine roots; common medium and coarse roots
B21—52 to 83 centimeters (20.5 to 32.7 inches); yellowish brown (10YR 5/8) interior, strong brown (7.5YR 5/6) interior, moist; loam; 30 percent silt; weak fine and medium subangular blocky structure; soft, very friable, nonsticky, slightly plastic; 5.5 very fine and fine roots and 2.5 medium and coarse roots; 5.5 very fine and fine interstitial and 2.5 fine tubular pores; black stains on nodules; 10 percent by volume 250-425-600 millimeter mixed fragments and 10 percent by volume 75-162-250 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # 78P00362. many very fine and fine roots; common medium and coarse roots
B22—83 to 118 centimeters (32.7 to 46.5 inches); yellowish brown (10YR 5/8) interior, strong brown (7.5YR 5/8) interior, moist; loam; 45 percent silt; weak medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; 2.5 very fine and fine roots and 2.5 medium and coarse roots; 2.5 very fine and fine tubular and 5.5 very fine and fine interstitial pores; black stains on nodules; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 30 percent by volume 2-39-75 millimeter mixed fragments; strongly acid, pH 5.5, hellige-truog; clear irregular boundary. Lab sample # 78P00363. Clay films on pores and root channels.; common very fine and fine roots; common medium and coarse roots
B3t—118 to 145 centimeters (46.5 to 57.1 inches); strong brown (7.5YR 5/8) interior, strong brown (7.5YR 4/6) interior, moist; clay loam; 20 percent silt; moderate fine and medium subangular blocky structure; slightly hard, friable, nonsticky, slightly plastic; 2.5 fine and medium roots; 5.5 very fine and fine interstitial and 0.5 fine tubular pores; pressure faces on nodules and 55 percent slickensides (pedogenic) on faces of peds; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 15 percent by volume 2-39-75 millimeter mixed fragments; very strongly acid, pH 5.0, hellige-truog; abrupt wavy boundary. Lab sample # 78P00364. many intersecting slickensides surface features on faces of peds; common fine and medium roots
C1si—145 to 193 centimeters (57.1 to 76.0 inches); 10YR 7/ (10YR 7/), interior, strong brown (7.5YR 5/8) interior, moist; sandy loam; 70 percent silt; 11 percent strong brown (7.5YR 4/6) fine distinct mottles; massive; very hard, very firm, nonsticky, nonplastic; 2.5 fine and medium roots in cracks; black stains on nodules; 10 percent by volume 75-162-250 millimeter mixed fragments and 10 percent by volume 250-425-600 millimeter mixed fragments and 15 percent by volume 2-39-75 millimeter mixed fragments; extremely acid, pH 4.3, hellige-truog. Lab sample # 78P00365. Cracks are 15 to 30 cm apart. Did not slake.; common fine and medium roots in cracks; common fine distinct 7.5YR46 mottles