PEDON DESCRIPTION

Print Date: 11/24/2009Country: United States
Description Date: 08/06/2003State: Oregon
Describer: Dorr, JimCounty: Klamath
Site ID: 03-JFD-04MLRA: 3 -- Olympic and Cascade Mountains
Site Note: Anniespring SNOTEL SiteSoil Survey Area: OR682 -- Crater Lake National Park, Oregon
Pedon ID: 03OR035016Map Unit: 4 -- Castlecrest gravelly ashy sandy loam, 2 to 10 percent slopes
Pedon Note: Sampled for analysis at NSSC. Sample Numbers: S03OR-035-005-001, 1 to 17 cm, A horizon S03OR-035-005-002, 17 to 80 cm, Bw horizon S03OR-035-005-003, 80 to 140 cm, BC horizon; field assigned pedon number: D03-054PQuad Name: Union Peak, Oregon
Lab Source ID: SSLLocation Description: about 15 miles west and 20 miles north of Chiloquin
Lab Pedon #: 04N0390Legal Description:
Soil Name as Described/Sampled: CastlecrestLatitude: 42 degrees 52 minutes 13.00 seconds north
Soil Name as Correlated: Longitude: 122 degrees 9 minutes 51.00 seconds west
Classification: Ashy, amorphic Typic VitricryandsDatum: NAD27
Pedon Type: within range of seriesUTM Zone: 10
Pedon Purpose: full pedon descriptionUTM Easting: 568277 meters
Taxon Kind: seriesUTM Northing: 4746532 meters
Associated Soils:
Physiographic Division: Primary Earth Cover: Tree cover
Physiographic Province: Secondary Earth Cover:
Physiographic Section: Existing Vegetation:
State Physiographic Area: Parent Material: ash flow derived from pumice and/or ash flow derived from andesite
Local Physiographic Area: Bedrock Kind:
Geomorphic Setting: None AssignedBedrock Depth:
Upslope Shape: linearBedrock Hardness:
Cross Slope Shape: linearBedrock Fracture Interval:
Particle Size Control Section: 1 to 101 cm.Surface Fragments:
Description origin: NASISDescription database: NSSL
Diagnostic Features: ochric epipedon 0 to 17 cm.
andic soil properties 1 to 80 cm.



Cont. Site ID: 03-JFD-04Pedon ID: 03OR035016

Slope (%)Elevation (meters)Aspect (deg)MAAT (C)MSAT (C)MWAT (C)MAP (mm)Frost-Free DaysDrainage ClassSlope Length (meters)Upslope Length (meters)
2.01,835.01293.3

1,11835somewhat excessively


Oi--0 to 1 centimeters; slightly decomposed plant material; 3 percent nonflat subrounded moderately cemented 2- to 75-millimeter pumice fragments; forest litter of slightly decomposed needles, twigs and cones; abrupt smooth boundary.

A--1 to 17 centimeters; very dark grayish brown (10YR 3/2) broken face ashy sandy loam, dark grayish brown (10YR 4/2) broken face, dry; weak coarse subangular blocky parting to weak fine subangular blocky structure; very friable, soft, nonsticky, nonplastic; low excavation difficulty; few fine roots throughout and few medium roots throughout and few coarse roots throughout and many very fine roots throughout; many very fine low-continuity interstitial pores; 3 percent nonflat subrounded moderately cemented 2- to 75-millimeter pumice fragments; slightly acid, pH 6.2, Bromthymol blue; clear smooth boundary. Lab sample # 04N02282

Bw--17 to 80 centimeters; very dark grayish brown (10YR 3/2) broken face ashy loamy fine sand, brown (10YR 5/3) broken face, dry; massive; very friable, soft, nonsticky, nonplastic; low excavation difficulty; very few fine roots throughout and very few medium roots throughout and few very fine roots throughout; few fine low-continuity tubular and many very fine low-continuity interstitial pores; 1 percent nonflat subrounded moderately cemented 2- to 75-millimeter pumice fragments; slightly acid, pH 6.4, Bromthymol blue; clear wavy boundary. Lab sample # 04N02283

BC--80 to 180 centimeters; very dark grayish brown (10YR 3/2) broken face ashy sand, brown (10YR 5/3) broken face, dry; massive; very friable, slightly hard, nonsticky, nonplastic; low excavation difficulty; very few fine roots throughout and very few very fine roots throughout; few very fine low-continuity tubular and many very fine low-continuity interstitial pores; 1 percent nonflat subrounded moderately cemented 2- to 75-millimeter pumice fragments; 1 percent krotovinas (volume percent); slightly acid, pH 6.4, Bromthymol blue; krotovinas consist of open burrows 4 to 12 centimeters in diameter; diffuse smooth boundary. Lab sample # 04N02284

C--180 to 250 centimeters; dark brown (7.5YR 3/2) broken face ashy loamy sand, brown (10YR 4/3) broken face, dry; massive; very friable, soft, nonsticky, nonplastic; low excavation difficulty; many very fine low-continuity interstitial pores; 1 percent nonflat subrounded moderately cemented 2- to 75-millimeter pumice fragments; slightly acid, pH 6.4, Bromthymol blue.