Page 138 - E-BOOK English

Soil classification

WRB: Albic Podzols
Soil taxonomy: Sandy, siliceous, superactive, ortstein, isohyperthermic Typic Haplorthods

Soil series: Ban Thon series (Bh)

Profile description

 0-18 cm (A) Dark gray (10YR 4/1) loamy sand;
single grain; loose; nonsticky, nonplastic;
plentiful fine roots, few medium and coarse

roots; extremely acid (field pH 4.0); diffuse
smooth boundary.

 18-51 cm (E1) Gray to light gray (10YR 6-7/1)

sand; single grain; loose; nonsticky,
nonplastic; many fine interstitial pores;

common fine roots; strongly acid (field pH
5.5); diffuse, smooth boundary.

 51-76/80 cm (E2) White (10YR 8/1) sand; single

grain; loose; nonsticky, nonplastic; many fine
interstitial pores; few fine roots; slightly acid

(field pH 6.5); clear, smooth boundary.

 76/80-106 cm (Bh1) Black (10YR 2/1) and dark brown (7.5YR 3/4) loamy sand; massive;
firm, nonsticky, nonplastic; common fine interstitial pores; very few fine roots; very
strongly acid (field pH 4.5); diffuse, smooth boundary.

 106-136 cm (Bh2) Very dark gray (10YR 3/1) and dark brown (7.5YR 3-4/4) loamy sand; massive;
friable, nonsticky, nonplastic; common fine interstitial pores; no roots; very strongly acid (field
pH 4.5).

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