Harvard Forest & Quabbin Watershed NEON (HARV) Soil Descriptions

Oi--0 to 4 centimeters (0.0 to 1.6 inches); very dark brown (7.5YR 2.5/2) slightly decomposed plant material; many very fine roots throughout and many medium roots throughout and many fine roots throughout; strongly acid, pH 5.2, Bromcresol green; abrupt smooth boundary. Lab sample # 12N03205

A--4 to 9 centimeters (1.6 to 3.5 inches); very dark brown (10YR 2/2) highly organic fine sandy loam; weak fine granular, and weak medium granular structure; very friable; many very fine roots throughout and many medium roots throughout and many fine roots throughout and many coarse roots throughout; 5 percent nonflat subangular 2 to 75-millimeter unspecified fragments and 5 percent nonflat subangular 75 to 250-millimeter unspecified fragments; strongly acid, pH 5.4, Bromcresol green; clear wavy boundary. Lab sample # 12N03206

Ap--9 to 17 centimeters (3.5 to 6.7 inches); dark brown (10YR 3/3) gravelly fine sandy loam; weak fine subangular blocky, and weak medium subangular blocky structure; very friable; many very fine roots throughout and many medium roots throughout and many fine roots throughout and many coarse roots throughout; 5 percent nonflat subangular 75 to 250-millimeter unspecified fragments and 12 percent nonflat subangular 2 to 75-millimeter unspecified fragments; strongly acid, pH 5.4, Bromcresol green; clear wavy boundary. Lab sample # 12N03207

B/E--17 to 32 centimeters (6.7 to 12.6 inches); 90 percent brownish yellow (10YR 6/8) and 10 percent yellowish brown (10YR 5/6) fine sandy loam; weak fine subangular blocky, and weak medium subangular blocky structure; friable; many medium roots throughout and common fine roots throughout and few coarse roots throughout; few medium tubular and few fine dendritic tubular and few fine tubular pores; 5 percent nonflat subangular 75 to 250-millimeter unspecified fragments and 7 percent nonflat subangular 2 to 75-millimeter unspecified fragments; strongly acid, pH 5.4, Bromcresol green; gradual wavy boundary. Lab sample # 12N03208

Bw1--32 to 53 centimeters (12.6 to 20.9 inches); yellowish brown (10YR 5/6) fine sandy loam; weak coarse subangular blocky structure; friable; common medium roots throughout and common fine roots throughout and few coarse roots throughout; few medium tubular and few fine dendritic tubular and few fine tubular and few coarse tubular pores; 5 percent nonflat subangular 2 to 75-millimeter unspecified fragments and 7 percent nonflat subangular 75 to 250-millimeter unspecified fragments; strongly acid, pH 5.3, Bromcresol green; gradual wavy boundary. Lab sample # 12N03209

Bw2--53 to 82 centimeters (20.9 to 32.3 inches); dark yellowish brown (10YR 4/6) fine sandy loam; weak coarse subangular blocky structure; friable; few medium roots throughout and few fine roots throughout and few coarse roots throughout; few fine dendritic tubular and few fine tubular pores; 5 percent nonflat subangular 2 to 75-millimeter unspecified fragments and 7 percent nonflat subangular 75 to 250-millimeter unspecified fragments; strongly acid, pH 5.3, Bromcresol green; clear smooth boundary. Lab sample # 12N03210

2BC--82 to 96 centimeters (32.3 to 37.8 inches); dark yellowish brown (10YR 4/4) loamy sand; single grain; loose; few very fine roots throughout and few fine roots throughout; 5 percent nonflat subangular 75 to 250-millimeter unspecified fragments and 5 percent nonflat subangular 2 to 75-millimeter unspecified fragments; strongly acid, pH 5.3, Bromcresol green; clear smooth boundary. Lab sample # 12N03211

2C--96 to 113 centimeters (37.8 to 44.5 inches); 75 percent light olive brown (2.5Y 5/3) and 25 percent yellowish brown (10YR 5/6) sand; single grain; loose; very few medium roots throughout and very few fine roots throughout; 5 percent coarse prominent 5YR 4/6), moist, masses of oxidized iron; 12 percent nonflat subangular 2 to 75-millimeter unspecified fragments; moderately acid, pH 5.7, Chlorophenol red; abrupt smooth boundary. Lab sample # 12N03212

2Cd1--113 to 133 centimeters (44.5 to 52.4 inches); olive brown (2.5Y 4/3) gravelly coarse sandy loam; massive; firm; 3 percent nonflat subangular 75 to 250-millimeter unspecified fragments and 25 percent nonflat subangular 2 to 75-millimeter unspecified fragments; moderately acid, pH 5.7, Chlorophenol red; abrupt wavy boundary. Lab sample # 12N03213

2Cd2--133 to 160 centimeters (52.4 to 63.0 inches); 60 percent strong brown (7.5YR 4/6) and 40 percent brown (10YR 4/3) very gravelly coarse sand; massive; firm; 5 percent nonflat subangular 250 to 600-millimeter unspecified fragments and 10 percent nonflat subangular 75 to 250-millimeter unspecified fragments and 40 percent nonflat subangular 2 to 75-millimeter unspecified fragments; moderately acid, pH 5.7, Chlorophenol red. Lab sample # 12N03214.