Sombric Horizon - Soil Geography of the USA: A Diagnostic-Horizon Approach - page 238

A/B 34-47 2.5YR 3/4 4.6 1.39 53.2

Bo1 47-110 2.5YR 3/6 4.7 0.56 63.0

Bso1 110-133 2.5YR 3/4, 3/6 4.9 0.53 58.2

Bso2 133-165 2.5YR 3/4 4.9 0.60 58.8

Bo2 165-190 2.5YR 3/6 4.7 0.49 55.4

2Bo 190 -
b Pedon 27: profile 177, Congo

Sys ( 1972 )

A 0-18 10YR 2/1 5.7 2.10 36.8

AB 18-28 5YR 3/1.5 5.5 0.95 37.2

BA 28-56 5YR 3/4 5.4 0.51 31.3

Btso1 56-68 5YR 3/3 5.1 0.63 43.6

Btso2 68-130 - 5.1 0.53 56.8

BC 130-175 2.5YR 4/6 5.1 - 53.5

C 175-250 - 4.6 - 42.0

b Pedon 28: profile 178, Congo

Sys ( 1972 )

A 0-18 10YR 3/1 5.0 2.17 56.6

AB 18-30 5YR 3/2 4.9 1.11 58.9

Bo 30-61 5YR 3/3 4.8 1.02 57.1

Bso1 61-82 5YR 3/2.5 4.7 0.97 58.9

Bso2 82-150 5YR 3/2 4.8 1.78 64.0

BC 150-190 5YR 3/4 4.5 - 62.5

Pedon 29: profile 196, Congo Sys ( 1972 )

Ap 0-27 10YR 2/2 5.7 1.57 31.2

AB 27-41 10YR 2/2 5.3 0.82 36

BA 41-60 5YR 4/4 5.5 0.54 35.4

Bw 60-100 5YR 4/4 5.8 0.30 34.5

Bso 100-140 5YR 3/3, 3/2 5.8 - 43.5

Pedon 30: profile 197, Congo Sys ( 1972 )

Ap 0-19 5YR 3/2 5.5 2.13 53.6

(continued)