Moab NEON (MOAB) Soil Descriptions

Pedon Descriptions

Pit‐level observations and field measurements reported using the standard NRCS format. They contain volume estimates for coarse fragments > 20 mm where applicable.

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Site Level Plot Summary

A narrative summary that places the sampled soil pedons in the broader context of soils and geomorphology for the entire NEON site.

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soil profile

D13 MOAB megapit soil profile 0-200 cm

soil profile

D13 MOAB megapit soil profile 0-34 cm

soil profile

D13 MOAB megapit soil profile 25-67 cm

soil profile

D13 MOAB megapit soil profile 59-89 cm

soil profile

D13 MOAB megapit soil profile 76-121 cm

soil profile

D13 MOAB megapit soil profile 108-162 cm

soil profile

D13 MOAB megapit soil profile 145-200 cm

Megapit Pedon Description

Print Date Jul 22 2015
Description Date Feb 24 2014
Describer Keith Crossland
Site ID S2014UT037001
Pedon ID S2014UT037001
Lab Source ID KSSL
Lab Pedon # 14N0343
Pedon Purpose laboratory sampling site
Taxon Kind family
Physiographic Province Colorado Plateau
Geomorphic Setting on tread of structural bench
on tread of plateau
Upslope Shape convex
Cross Slope Shape convex
Particle Size Control Section 25 to 100 cm.
Description origin NASIS
State Utah
County San Juan
MLRA 35 -- Colorado Plateau
Soil Survey Area UT633 -- Canyonlands Area, Utah - Parts of Grand and San Juan Counties
Latitude 38 degrees 15 minutes 5.03 seconds north
Longitude 109 degrees 23 minutes 19.48 seconds west
Datum WGS84
UTM Zone 12
UTM Easting 640981 meters
UTM Northing 4234936 meters
Primary Earth Cover Grass/herbaceous cover
Secondary Earth Cover Grassland rangeland
Existing Vegetation blue grama, fourwing saltbush, purple threeawn
Bedrock Kind sandstone
Description database KSSL
Diagnostic Features calcic horizon 31 to 116 cm.
Slope (%) 4.0
Elevation (meters) 1,805.0
Aspect (deg) 40
MAAT (C) 32.0
MAP (mm) 280
Frost-Free Days 130
Drainage Class well
Horizon Details

A--0 to 6 centimeters (0.0 to 2.4 inches); yellowish red (5YR 5/6) very fine sandy loam, reddish brown (5YR 4/4), moist; 8 percent clay; moderate thick platy structure; noneffervescent, by HCl, 1 normal; neutral, pH 7.0, pH indicator solutions; clear smooth boundary. Lab sample # 14N01781

Bw--6 to 31 centimeters (2.4 to 12.2 inches); red (2.5YR 4/6) very fine sandy loam, yellowish red (5YR 4/6), moist; 14 percent clay; strong medium subangular blocky structure; noneffervescent, by HCl, 1 normal; neutral, pH 7.0, pH indicator solutions; gradual smooth boundary. Lab sample # 14N01782

Bk1--31 to 47 centimeters (12.2 to 18.5 inches); yellowish red (5YR 5/6) loam, yellowish red (5YR 5/8), moist; 16 percent clay; strong medium subangular blocky structure; 5 percent irregular carbonate masses in matrix; 2 percent nonflat subrounded sedimentary rock fragments; strong effervescence, by HCl, 1 normal; strongly alkaline, pH 8.6, pH indicator solutions; gradual smooth boundary. Lab sample # 14N01783

Bk2--47 to 62 centimeters (18.5 to 24.4 inches); pink (5YR 7/4) fine sandy loam, reddish yellow (5YR 7/6), moist; 13 percent clay; moderate medium subangular blocky structure; 15 percent distinct carbonate coats on bottom of rock fragments; 10 percent irregular carbonate masses in matrix; 10 percent nonflat subrounded sedimentary rock fragments; violent effervescence, by HCl, 1 normal; moderately alkaline, pH 8.4, pH indicator solutions; clear smooth boundary. Lab sample # 14N01784

Bk3--62 to 82 centimeters (24.4 to 32.3 inches); reddish yellow (5YR 6/6) sandy loam, yellowish red (5YR 5/8), moist; 13 percent clay; moderate medium subangular blocky structure; 30 percent distinct carbonate coats on bottom of rock fragments; 20 percent irregular carbonate masses in matrix; 15 percent nonflat subrounded sedimentary rock fragments; strong effervescence, by HCl, 1 normal; strongly alkaline, pH 8.6, pH indicator solutions; clear smooth boundary. Lab sample # 14N01785

Ck--82 to 116 centimeters (32.3 to 45.7 inches); reddish yellow (5YR 6/6) fine sandy loam, yellowish red (5YR 4/6), moist; 12 percent clay; structureless massive; 20 percent distinct carbonate coats on bottom of rock fragments; 10 percent irregular carbonate masses in matrix; 30 percent nonflat subrounded sedimentary rock fragments; strong effervescence, by HCl, 1 normal; moderately alkaline, pH 8.4, pH indicator solutions; clear smooth boundary. Lab sample # 14N01786

C1--116 to 160 centimeters (45.7 to 63.0 inches); reddish yellow (5YR 6/6) sandy loam, yellowish red (5YR 5/6), moist; 5 percent clay; structureless massive; carbonate, finely disseminated throughout; 40 percent nonflat subrounded sedimentary rock fragments; slight effervescence, by HCl, 1 normal; moderately alkaline, pH 8.0, pH indicator solutions; abrupt smooth boundary. Lab sample # 14N01787

C2--160 to 200 centimeters (63.0 to 78.7 inches); light red (2.5YR 6/6) very fine sandy loam, yellowish red (5YR 4/6), moist; 7 percent clay; structureless massive; carbonate, finely disseminated throughout; 0 percent unspecified fragments; strong effervescence, by HCl, 1 normal; slightly alkaline, pH 7.8, pH indicator solutions. Lab sample # 14N01788

Credits: This megapit soil pedon description was generously created by USDA Natural Resource Conservation Service staff, with particular thanks to Larry West, Jon Hempel, and numerous field staff.