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ͪشԹ  :  ѭ  Thanyaburi (Tan)
 
 
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Apgl
0-7
Dark Grayish brown (10YR4/2) clay; many fine prominent yellowish red(5YR5/8) mottles along root channels; weak fine subangular blocky structure; extremely hard, very firm, very sticky, very plastic; many fibrous roots; very strongly acid (field pH4.5); clear, smooth boundary.
Apg2
7-22
Dark gray to very dark gray (10YR3-4/1); clay; common fine distinct yellowish brown (10YR5/6) mottles along cracks; weak coarse blocky structure; extremely hard, very firm, very sticky, very plastic; common fine roots; extremely acid (field pH4.0-4.5); gradual, smooth boundary.
Bssg
22-40
Very dark grayish brown (10YR3/2) or dark brown (7.5YR3/2) clay; common fine distinct strong brown (7.5YR5/8) mottles; massive; very firm, very sticky, very plastic; common fine roots; patchy organic matter coatings; medium decayed roots; patchy organic matter coatings; extremely acid (field pH 4.0-4.5); clear, wavy boundary.
Bssjg
40-90
Brown (7.5YR5/2) clay; many medium and coarse distinct strong brown(7.5YR5/8) mottles; many streaks of jarosite yellow (2.5YR8/6); massive; very firm, very sticky, very plastic; many medium decayed roots; patchy organic matter coatings; extremely acid (field pH 4.0); clear, wavy boundary.
BCg
90-135
Brown (7.5YR5/2) nearly ripe clay; few fine faint brown (7.5YR4/4) and distinct strong brown (7.5YR5/6) mottles; massive; very sticky, very plastic; many medium declay roots; very strongly acid (field pH 4.5); abrupt, irregular boundary.
Cg1
135-250
Gray (5Y5/1) half ripe clay; massive; very sticly, very plastic; very strongly acid (field pH 4.5)
Cg2
250-350
Gray (5Y5/1) unripe to nearly unripe clay; few decomposed plant residues; slightly acid (field pH 6.5)