IDENTIFIERS

Current Taxon Name (Soil Name): Coppercreek

OSD

Series Extent

User Site ID: S1984CA605REDW004

User Pedon ID: S10CA023019

Vegetation Plot ID: S1984CA605REDW004

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 10N0690

NCSS Pedon Lab Data NASIS Record ID - 58616

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: 41.2193861

Std. Longitude: -124.0316889

Datum: WGS84

Township: 10N

Range: 1E

Section: 35

PLSS Details: northeast quarter, northwest quarter

Location Description: Redwood National Park, Humboldt County, California; located approximately 2.4 kilometers on road A-8 from the junction with L-line, walk 15 meters north, up the hill, to the bankcut.

Map Unit: 536—Coppercreek-Ahpah-Lackscreek complex, 30 to 50 percent slopes

State: California

County: CA023—Humboldt

MLRA: 4—California Coastal Redwood Belt

Non-MLRA Soil Survey Area: CA605—Humboldt and Del Norte Area, California

7.5 Minute USGS Quad: 41124-B1—Rodgers Peak, California

PEDON

Describers Name: Jim Popenoe

Current Taxonomic Class: Fine-loamy, mixed, semiactive, isomesic Typic Palehumults

Current Taxon Kind: series

Pedon Type: representative pedon for component

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Pedon #: 19

Correlated Information:

Soil Name - Coppercreek

PSC - 49 to 99 cm.

Classificaton Date - 4/12/2010

Soil Taxonomic Edition - eighth edition

Moisture Class - udic

Moisture Subclass - udic

Sampled As Information:

Soil Name - Coppercreek

Classificaton Date - 3/19/1984

Dynamic Soil Properties:

Erosion Class - 0

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: colluvium derived from schist

Landscape: mountains

Landform: mountain slope

Geomorphic Component Mountains: mountainflank, center third

Hill Slope Profile: backslope

Slope Complexity: complex

Slope Shape Across: linear

Slope Shape Down: linear

Runoff: high

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: schist, unspecified

Geology: Redwood Creek Schist member of the Franciscan Formation formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 3/19/1984 (actual site observation date)

Air Photo ID: 5-20

Surface Water Kind: none observed

Plant Association Name: Redwood-Douglas fir Forest

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - intermixed conifers and hardwoods

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
BLSP LIDE3 VAOV2 TSHE SESE3 PSME ALRU2 RHMA3 VISE3 POMU	Blechnum spicant Lithocarpus densiflorus Vaccinium ovatum Tsuga heterophylla Sequoia sempervirens Pseudotsuga menziesii Alnus rubra Rhododendron macrophyllum Viola sempervirens Polystichum munitum	deer fern tanoak California huckleberry western hemlock redwood Douglas-fir red alder Pacific rhododendron evergreen violet western swordfern	— — — — — — — — — —	— — — — — — — — — —	— — — — — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon	0—40 49—113	—28— —64—

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
68	—	—	314	—	210	2150	—	270	11	14	9	—	—	—	—	—	—	—	—

Oi—0 to 12 centimeters (0.0 to 4.7 inches); slightly decomposed plant material; 4.0 very fine roots and 4.0 fine roots; fragments; noneffervescent.; moist when described; observed in cut

A—12 to 25 centimeters (4.7 to 9.8 inches); dark yellowish brown (10YR 4/4) broken face, very pale brown (10YR 7/4) broken face, dry; gravelly loam; 25 percent clay; weak fine granular structure; slightly hard, very friable, slightly sticky, slightly plastic; moderate permeability; 10.0 very fine roots and 0.5 medium roots and 10.0 fine roots; 10.0 very fine irregular and 0.5 medium tubular and 4.0 fine tubular and 10.0 fine irregular pores; 27 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; strongly acid, pH 5.5; clear wavy boundary.; moist when described; observed in cut

AB—25 to 40 centimeters (9.8 to 15.7 inches); dark yellowish brown (10YR 4/4) broken face, very pale brown (10YR 7/4) broken face, dry; gravelly clay loam; 27 percent clay; weak fine granular, and weak coarse subangular blocky parts to weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderate permeability; 10.0 very fine roots and 4.0 medium roots and 10.0 fine roots and 0.5 coarse roots; 4.0 very fine tubular and 4.0 very fine irregular and 4.0 medium tubular and 4.0 fine tubular and 4.0 fine irregular pores; 27 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; strongly acid, pH 5.5; clear wavy boundary. Lab sample # 10N03160; moist when described; observed in cut

BAt—40 to 57 centimeters (15.7 to 22.4 inches); yellowish brown (10YR 5/6) broken face, brownish yellow (10YR 6/6) broken face, dry; gravelly clay loam; 30 percent clay; weak coarse subangular blocky parts to weak medium subangular blocky structure; hard, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 4.0 very fine tubular and 0.5 medium tubular and 4.0 fine tubular pores; 18 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; strongly acid, pH 5.5; gradual wavy boundary. Lab sample # 10N03161; moist when described; observed in cut

Bt1—57 to 80 centimeters (22.4 to 31.5 inches); strong brown (7.5YR 5/8) broken face, reddish yellow (7.5YR 6/6) broken face, dry; gravelly clay loam; 30 percent clay; weak coarse subangular blocky structure; soft, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 4.0 very fine tubular and 0.5 medium tubular and 4.0 fine tubular pores; 7 percent faint on surfaces along pores and 8 percent faint between sand grains; 21 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; moderately acid, pH 6.0; gradual wavy boundary. Lab sample # 10N03162; moist when described; observed in cut

Bt2—80 to 113 centimeters (31.5 to 44.5 inches); yellowish brown (10YR 5/8) broken face, very pale brown (10YR 7/4) broken face, dry; gravelly clay loam; 27 percent clay; weak coarse subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 4.0 very fine roots and 4.0 medium roots and 4.0 fine roots and 0.5 coarse roots; 0.5 very fine tubular and 0.5 medium tubular and 0.5 fine tubular pores; 15 percent faint clay films between sand grains; 32 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; moderately acid, pH 6.0; gradual wavy boundary.; moist when described; observed in cut

BC—113 to 146 centimeters (44.5 to 57.5 inches); light yellowish brown (10YR 6/4) broken face, pale yellow (2.5Y 7/4) broken face, dry; gravelly clay loam; 27 percent clay; structureless massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots and 0.5 coarse roots; 0.5 very fine tubular and 0.5 fine tubular pores; 25 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; moderately acid, pH 6.0; gradual wavy boundary.; moist when described; observed in cut

C—146 to 184 centimeters (57.5 to 72.4 inches); light brownish gray (2.5Y 6/2) broken face, light gray (2.5Y 7/2) broken face, dry; gravelly loam; 26 percent clay; structureless massive; slightly hard, friable, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots and 0.5 coarse roots; 0.5 very fine tubular and 0.5 medium tubular and 0.5 fine tubular pores; 27 percent by volume 2-38-75 millimeter schist, unspecified fragments; noneffervescent; moderately acid, pH 6.0.; moist when described; observed in cut