D16 WREF Megapit Soils Description
| Print Date: Feb 4 2019 | Country: |
| Description Date: Sep 26 2017 | State: Washington |
| Describer: Daniel Ufnar | County: Skamania |
| Site ID: 2017WA059001_MP | MLRA: 3 -- Olympic and Cascade Mountains |
| Site Note: | Soil Survey Area: WA760 -- Gifford Pinchot National Forest Area, Washington |
| Pedon ID: S2017WA059001_MP | Map Unit: |
| Pedon Note: | Quad Name: |
| Lab Source ID: KSSL | Std Latitude: 45.8164290 |
| Lab Pedon #: 18N0001 | Std Longitude: -121.9584660 |
| User Transect ID: | |
| Soil Name as Described/Sampled: Stabler | |
| Classification: Medial, amorphic, mesic Typic Hapludands | Latitude: |
| Soil Name as Correlated: | Longitude: |
| Classification: | Datum: WGS84 |
| Pedon Type: taxadjunct to the series | UTM Zone: |
| Pedon Purpose: research site | UTM Easting: |
| Taxon Kind: taxadjunct | UTM Northing: |
| Associated Soils: | |
| Physiographic Division: | Primary Earth Cover: Tree cover |
| Physiographic Province: | Secondary Earth Cover: Conifers |
| Physiographic Section: | Existing Vegetation: bride's bonnet, Cascade barberry, Douglas-fir, grand fir, Pacific trillium, red huckleberry, salal, sweet after death, vine maple, western hemlock |
| State Physiographic Area: | Parent Material: volcanic ash mixed with alluvium over debris flow deposits |
| Local Physiographic Area: | Bedrock Kind: |
| Geomorphic Setting: on tread of None Assigned | Bedrock Depth: |
| Upslope Shape: linear | Bedrock Hardness: |
| Cross Slope Shape: linear | Bedrock Fracture Interval: |
| Particle Size Control Section: 9 to 109 cm. | Surface Fragments: |
| Description origin: NASIS | Description database: KSSL |
| Diagnostic Features: | ochric epipedon to cm. cambic horizon 9 to 80 cm. andic soil properties 9 to 136 cm. aquic conditions 162 to 200 cm. redox concentrations 162 to 200 cm. |
| Cont. Site ID: 2017WA059001_MP | Pedon ID: S2017WA059001_MP |
| Slope (%) | Elevation (meters) | Aspect (deg) | MAAT (C) | MSAT (C) | MWAT (C) | MAP (mm) | Frost-Free Days | Drainage Class | Slope Length (meters) | Upslope Length (meters) |
| 3.0 | 381.0 | 220 | well |
Oi--0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; many medium roots and many fine roots and many coarse roots; abrupt smooth boundary. Lab sample # 18N00001
Oa--3 to 9 centimeters (1.2 to 3.5 inches); highly decomposed plant material; many very coarse roots and many medium roots and common coarse roots; abrupt smooth boundary. Lab sample # 18N00002. 1-2 mm lens of volcanic ash, assumed to be Mount St Helens 1980 eruption.
Ac--9 to 50 centimeters (3.5 to 19.7 inches); dark brown (7.5YR 3/3) broken face medial loam, pale brown (10YR 6/3) broken face, dry; 45 percent sand; 13 percent clay; moderate fine granular structure; soft, very friable, nonsticky, slightly plastic; weakly smeary; common very fine roots and few very coarse roots and common fine roots and common coarse roots; many very fine irregular and common medium irregular pores; 2 percent nonflat subangular moderately cemented 5 to 10-millimeter iron-manganese concretions and 3 percent nonflat subrounded moderately cemented 2 to 5-millimeter iron-manganese concretions; gradual wavy boundary. Lab sample # 18N00003
Bw--50 to 80 centimeters (19.7 to 31.5 inches); dark brown (7.5YR 3/4) broken face medial loam, light yellowish brown (10YR 6/4) broken face, dry; 45 percent sand; 15 percent clay; weak fine subangular blocky structure; soft, very friable, nonsticky, slightly plastic; weakly smeary; common medium roots and common fine roots and common coarse roots; common very fine tubular and few medium irregular and few medium tubular pores; gradual wavy boundary. Lab sample # 18N00004
BC--80 to 94 centimeters (31.5 to 37.0 inches); dark yellowish brown (10YR 4/4) broken face medial sandy loam, light yellowish brown (10YR 6/4) broken face, dry; 60 percent sand; 14 percent clay; weak medium subangular blocky structure; slightly hard, friable, nonsticky, slightly plastic; weakly smeary; common medium roots and few coarse roots; few very fine tubular and few fine irregular and few fine tubular pores; gradual smooth boundary. Lab sample # 18N00005
2C1--94 to 136 centimeters (37.0 to 53.5 inches); dark yellowish brown (10YR 4/4) broken face medial sandy loam, light yellowish brown (10YR 6/4) broken face, dry; 75 percent sand; 10 percent clay; massive; hard, firm, nonsticky, nonplastic; weakly smeary; few very fine roots and few medium roots; few very fine tubular pores; abrupt irregular boundary. Lab sample # 18N00006
2C2--136 to 162 centimeters (53.5 to 63.8 inches); 45 percent strong brown (7.5YR 5/6) broken face and 35 percent strong brown (7.5YR 4/6) broken face and 20 percent pinkish gray (7.5YR 6/2) broken face ashy sandy loam, 45 percent pink (7.5YR 7/4) broken face and 35 percent strong brown (7.5YR 5/8) broken face and 20 percent pinkish gray (7.5YR 7/2) broken face, dry; 75 percent sand; 7 percent clay; massive; slightly hard, friable, nonsticky, nonplastic; few very fine roots; few very fine tubular and common fine irregular pores; abrupt smooth boundary. Lab sample # 18N00007
3Ab--162 to 178 centimeters (63.8 to 70.1 inches); very dark grayish brown (10YR 3/2) broken face medial sandy loam, grayish brown (10YR 5/2) broken face, dry; 70 percent sand; 13 percent clay; massive; hard, firm, nonsticky, nonplastic; weakly smeary; few very fine roots and common fine roots; few fine irregular and common fine tubular pores; 2 percent fine prominent 7.5YR 5/6), moist, masses of oxidized iron lining pores; gradual irregular boundary. Lab sample # 18N00008
3Cg--178 to 200 centimeters (70.1 to 78.7 inches); dark grayish brown (2.5Y 4/2) broken face medial sandy loam, light yellowish brown (2.5Y 6/3) broken face, dry; 75 percent sand; 10 percent clay; massive; hard, firm, nonsticky, nonplastic; weakly smeary; few fine irregular and common fine tubular pores; 5 percent fine prominent 7.5YR 5/6), moist, masses of oxidized iron lining pores. Lab sample # 18N00009.
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