LOCATION CRAZYCOYOTE CA

Established Series
REV: JWH/JTB/KP
07/2016

CRAZYCOYOTE SERIES

The Crazycoyote series consists of very deep, well drained soils formed in colluvium and residuum derived from sandstone and mudstone. Crazycoyote soils are on mountains. Slopes range from 15 to 75 percent. Mean annual precipitation is about 2160 millimeters and the mean annual temperature is about 13 degrees C.

TAXONOMIC CLASS: Fine-loamy, isotic, isomesic Typic Humustepts

TYPICAL PEDON: Crazycoyote loam on a southeast facing 45 percent slope under Douglas-fir, tanoak, and Pacific madrone at an elevation of 305 meters. (Colors are for dry soil unless otherwise noted.) When described on 06/01/06, the soil was moist throughout.

Oi--0 to 4 centimeters; 75 percent very dark brown (7.5YR 2.5/2) and 25 percent pinkish gray (7.5YR 6/2) slightly decomposed plant material, black (7.5YR 2.5/1) rubbed; about 75 percent fiber, 50 percent rubbed; 1 percent gravel; slightly acid (pH 6.4); abrupt smooth boundary. (0 to 5 centimeters thick)

A1--4 to 12 centimeters; dark grayish brown (10YR 4/2) loam, very dark brown (7.5YR 2.5/2) moist; strong medium granular structure; slightly hard, very friable, slightly sticky and slightly plastic; common very fine and fine roots throughout; common fine tubular pores; 10 percent gravel; moderately acid (pH 5.7); abrupt wavy boundary.

A2--12 to 39 centimeters; brown (10YR 5/3) loam, dark brown (7.5YR 3/2) moist; weak medium subangular blocky structure parting to moderate medium granular; slightly hard, very friable, slightly sticky and slightly plastic; common very fine, fine, and medium roots throughout; common fine tubular pores; 5 percent gravel; strongly acid (pH 5.2); abrupt wavy boundary. (Combined thickness of the A horizons is 30 to 50 centimeters)

Bt1--39 to 63 centimeters; light yellowish brown (10YR 6/4) loam, brown (10YR 4/3) moist; moderate medium and fine subangular blocky structure; moderately hard, friable, slightly sticky and slightly plastic; common fine roots throughout; few fine tubular pores; few faint clay films on all faces of peds; 7 percent gravel and 2 percent cobbles; strongly acid acid (pH 5.4); abrupt wavy boundary.

Bt2--63 to 90 centimeters; dark yellowish brown (10YR 4/6) very paragravelly loam, light yellowish brown (2.5Y 6/4) moist; moderate medium subangular blocky structure; hard, firm, slightly sticky and slightly plastic; common fine roots throughout; few distinct clay films on all faces of peds; 56 percent paragravel; moderately acid (pH 5.6); clear wavy boundary. (Combined thickness of the Bt horizons is 30 to 150 centimeters)

BCt--90 to 133 centimeters; light yellowish brown (2.5Y 6/4) very paragravelly loam, yellowish brown (10YR 5/6) moist; weak medium subangular blocky structure; moderately hard, friable, slightly sticky and slightly plastic; few faint clay films on all faces of peds; 52 percent paragravel; strongly acid (pH 5.3); clear wavy boundary.

C--133 to 180 centimeters; yellowish brown (10YR 5/8) paragravelly loam, brownish yellow (10YR 6/6) moist; massive; moderately hard, friable, slightly sticky and slightly plastic; 31 percent paragravel; strongly acid (pH 5.3). (0 to 50 centimeters thick)

TYPE LOCATION: Humboldt County, California; Located about 1 kilometer west of Ettersburg, CA; WGS84 Decimal degrees 40.1317778 latitude and -124.0141111 longitude; USGS Ettersburg Quadrangle; UTM zone 10 413602mE 4442877mN; NAD 83.

RANGE IN CHARACTERISTICS:

Soil Temperature: The mean annual soil temperature at 50 centimeters is 9 to 11 degrees C. (48 to 51 degrees F) and the difference between mean summer and mean winter soil temperatures is less than 6 degrees C. The soil has an isomesic soil temperature regime.

Soil Moisture: The soil moisture control section is dry in some or all parts for 90 or more cumulative days in normal years and it is moist in some part for more than 180 cumulative days or for 90 or more consecutive days per year. The soil has an ustic soil moisture regime.

Particle size control section weighted average:
Clay content: 20 to 27 percent
Rock fragments: 0 to 34 percent
Pararock fragments: 0 to 34
Reaction: strongly to moderately acid

A horizon:
Hue: 10YR
Value: 4 or 5 dry, 2 or 3 moist
Chroma: 2 or 3 dry or moist
Clay content: 16 to 27 percent
Rock fragments: 0 to 34 percent strongly cemented sandstone and mudstone
Pararock fragments: 0 to 34 percent moderately cemented sandtstone and mudstone

Bt horizons:
Hue: 7.5YR to 2.5Y
Value: 4 to 6 dry, 3 to 5 moist
Chroma: 3 to 6 dry or moist
Texture of fine earth: loam, sandy loam, sandy clay loam, clay loam
Clay content: 18 to 30 percent
Rock fragments: 0 to 34 percent strongly cemented sandstone and mudstone, 0 to 5 percent cobbles
Pararock fragments: 0 to 59 percent moderately cemented sandtstone and mudstone

C horizon (when present):
Hue: 7.5YR or 10YR
Value: 5 to 7 dry, 4 or 5 moist
Chroma: 4 to 6 dry or moist
Texture of fine earth: loam or sandy loam
Clay content: 10 to 27 percent
Rock fragments: 0 to 59 percent strongly cemented sandstone and mudstone, 0 to 5 percent cobbles
Pararock fragments: 15 to 59 percent moderately cemented sandtstone and mudstone

COMPETING SERIES: There are no competing series in this family.

GEOGRAPHIC SETTING: Crazycoyote soils are on linear to slightly concave and convex positions on ridges and mountain slopes. Slopes are 15 to 75 percent. Elevations range from 200 to 900 meters. These soils formed in colluvium and residuum derived from sandstone and mudstone. The climate is subhumid with cool, foggy summers and cool, wet winters. Mean annual precipitation is 1500 to 3050 millimeters and the mean annual temperature is 10 to 12 degrees C. The frost-free period is about 240 to 280 days.

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Caperidge (T), Canoecreek (T), and Sproulish (T) soils. Canoecreek and Sproulish soils lack an umbric epipedon. Caperidge and Canoecreek soils contain more than 35 percent coarse fragments in the particle-size control section. Caperidge soils are on convex positions on shoulders and summits. Canoecreek soils are on convex to slightly concave positions on shoulders and backslopes and Sproulish soils are on similar positions as Crazycoyote.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY: Well drained; high runoff; moderately high saturated hydraulic conductivity.

USE AND VEGETATION: This soil is used mainly for timber production, wildlife habitat, and watershed. Natural vegetation is Douglas-fir, tanoak, Pacific madrone, canyon live oak, and California huckleberry.

DISTRIBUTION AND EXTENT: Coastal Redwood Belt; MLRA 4B. The series is moderately extensive.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California

SERIES ESTABLISHED: Humboldt County, South Part, California, 2010 The name is coined.

REMARKS: Diagnostic horizons and features recognized in this pedon are:
1. Umbric epipedon: The zone from 4 to 39 centimeters. (A1 and A2 horizons)
2. Cambic horizon: The zone from 39 to 133 centimeters. (Bt1, Bt2, and BCt horizons)
3. Particle-size control section: The zone from 29 to 104 centimeters. (A2, Bt1, Bt2, and BCt horizons)
4. Isotic feature: 15 bar water/clay is 0.6 or more and the NaF pH is greater than 9.5 in more than 50 percent of the thickness.

ADDITIONAL DATA: NSSL Pedon 07N0349, Humboldt County, CA.
NASIS User Pedon ID: 06CA601630

Keys to Soil Taxonomy, 12th edition

National Cooperative Soil Survey
U.S.A.