Treehaven NEON (TREE) Soil Descriptions

Oa--0 to 2 centimeters (0.0 to 0.8 inches); very dark gray (7.5YR 3/1) highly decomposed plant material; moderate very fine granular structure; very friable; very fine roots and fine roots; very strongly acid, pH 4.9, Hellige-Truog; abrupt broken boundary. Lab sample # 15N03505. 40 percent O horizon - patchy 75 percent charcoal

A/E--2 to 17 centimeters (0.8 to 6.7 inches); dark brown (7.5YR 3/2) sandy loam; moderate fine granular structure; friable; very fine roots and fine roots and coarse roots; 10 percent nonflat subrounded indurated 2 to 72-millimeter mixed rock fragments; strongly acid, pH 5.4, Hellige-Truog; clear wavy boundary. Lab sample # 15N03506. A/E is mixed by earthworms

Bs--17 to 33 centimeters (6.7 to 13.0 inches); brown (7.5YR 4/4) sandy loam; weak medium subangular blocky structure; friable; very fine roots and fine roots and coarse roots; 10 percent nonflat subrounded indurated 2 to 72-millimeter mixed rock fragments; strongly acid, pH 5.5, Hellige-Truog; clear wavy boundary. Lab sample # 15N03507. ~ 5 percent A horizon material mixed by earthwormns

E--33 to 52 centimeters (13.0 to 20.5 inches); brown (7.5YR 4/3) sandy loam; weak medium subangular blocky structure; friable; very fine roots and medium roots and fine roots; 12 percent nonflat subrounded indurated 2 to 72-millimeter mixed rock fragments; strongly acid, pH 5.5, Hellige-Truog; gradual wavy boundary. Lab sample # 15N03508

E/B--52 to 66 centimeters (20.5 to 26.0 inches); brown (7.5YR 4/3) and reddish brown (5YR 4/4) gravelly sandy loam; weak medium prismatic parts to moderate medium subangular blocky structure; firm; very fine roots and fine roots; 30 percent faint 5YR 3/4), moist, clay films on all faces of peds; 22 percent nonflat subrounded indurated 2 to 72-millimeter mixed rock fragments; strongly acid, pH 5.4, Hellige-Truog; abrupt irregular boundary. Lab sample # 15N03509

2E and Bt--66 to 107 centimeters (26.0 to 42.1 inches); 80 percent brown (7.5YR 4/3) and 20 percent reddish brown (5YR 4/4) sand, loamy sand; structureless single grain; loose; and 10 percent faint 5YR 3/4), moist, clay bridges between sand grains; 1 percent fine faint 5YR 4/6), moist, masses of oxidized iron; 7 percent nonflat subrounded indurated 2 to 72-millimeter mixed rock fragments; moderately acid, pH 5.6, Hellige-Truog; gradual smooth boundary. Lab sample # 15N03510. 4 lamellae 4-30 mm thick 10 percent cos (stratification)

2BC--107 to 168 centimeters (42.1 to 66.1 inches); brown (7.5YR 5/4) stratified coarse sand to sand; structureless single grain; loose; 1 percent medium distinct 2.5YR 4/6), moist, masses of oxidized iron; 14 percent nonflat subrounded indurated 2 to 72-millimeter mixed rock fragments; moderately acid, pH 5.7, Hellige-Truog; abrupt wavy boundary. Lab sample # 15N03511

3Cd1--168 to 176 centimeters (66.1 to 69.3 inches); yellowish red (5YR 4/6) gravelly sandy loam; structureless massive; very friable; very fine roots and fine roots and coarse roots; 5 percent medium distinct 7.5YR 4/6), moist, masses of oxidized iron; 26 percent nonflat subrounded indurated 2 to 72-millimeter mixed rock fragments; strongly acid, pH 5.1, Hellige-Truog; abrupt wavy boundary. Lab sample # 15N03512

3Cd2--176 to 200 centimeters (69.3 to 78.7 inches); reddish brown (5YR 4/3) gravelly loamy sand; massive parts to weak extremely coarse platy; very friable; 25 percent coarse distinct 2.5YR 4/6), moist, masses of oxidized iron and 25 percent coarse prominent 7.5YR 5/1), moist, masses of reduced iron; 26 percent nonflat subrounded indurated 2 to 72-millimeter mixed rock fragments; strongly acid, pH 5.5, Hellige-Truog. Lab sample # 15N03513.