Sombric Horizon - Soil Geography of the USA: A Diagnostic-Horizon Approach - page 237

Table 21.1 (continued)
Horizon a Org. C (%) Clay (%) CEC (cmol(+)/kg) Base sat. (%) Al c Depth (cm) Munsell color (moist) pH References

BA 42-60 5YR 3/2 4.7 2.22 66.8

Bso1 60-85 5YR 3/1 4.8 1.74 66.6

Bso2 85-124 5YR 2/2 4.8 1.56 67.5

Bso3 124-160 5YR 3/3 4.8 - 65.1

Bo1 160-196 5YR 3/4 4.8 - 62.3

Bo2 196-220 2.5YR 3/4 4.9 - 57.1

b Pedon 24: profile 153, Congo

Sys ( 1972 )

A1 0-25 10YR 2/2 4.9 7.64 77.8

A2 25-43 - 4.9 6.36 78.9

A3 43-55 10YR 3/2 4.7 4.79 79.5

AB 55-75 10YR 3/3 4.7 2.96 78.3

Bt 75-100 10YR 4/3 4.6 2.13 75.2

Bso1 100-130 10YR 3/2 4.6 2.94 78.1

Bso2 130-155 10YR 2/2 4.5 1.87 74.5

BC 155-180 10YR 3/3 4.7 1.09 73.1

C 180-240 10YR 4/4 4.7 0.65 64.4

b Pedon 25: profile 169, Congo

Sys ( 1972 )

A 0-16 5YR 3/1 5.5 5.96 61.6

AB 16-46 5YR 3/2 5.1 2.01 57.9

BA 46-67 2.5YR 4/6 5.1 1.19 59.9

Bo1 67-94 2.5YR 3/6 5.1 0.89 59.9

Bso 94-150 2.5YR 4/4 5.0 1.08 61.2

Bo2 150-200 2.5YR 3/6 5.0 0.68 59.0

b Pedon 26: profile 176, Congo

Sys ( 1972 )

A1 0-24 5YR 3/2 5.1 3.86 54.0

A2 24-34 5YR 3/3 4.5 2.02 52.3