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ͪشԹ  :  ѧоا  Wang Saphung (Ws)
 
 
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Ap
0-12
Dark brown (7.5YR3/2) loam; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; few fine and medium interstitial pores, few fine tubular pores; common fine and medium charcoal pieces; slightly acid (field pH 6.5); clear, smooth boundary.
Bt1
12-33
Brown to reddish brown (7.5YR-5YR4/4) loam; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; common fine and few medium interstitial pores, common fine tubular pores; thin broken clay coatings on ped faces and moderately thick continuous clay coatings in pores; few large termite holes; few fine and medium roots; common fine and few medium subrounded iron nodules; strongly acid (field pH 5.5); gradual, smooth boundary.
Bt2
33-55
Dark yellowish brown (10YR3/4) clay with many fine faint strong brown mottles; mottles; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; common fine interstitial pores, few fine tubular pores; thin broken clay coatings on ped faces, moderately thick continuous clay coatings in pores; few fine, medium and coarse roots; few fine and medium subrounded iron nodules; strongly acid (field pH 5.5); clear, smooth boundary.
BC
55-80
Dark brown to brown (10YR4/3) very gravelly clay with many medium distinct strong brown and red mottles; weak coarse subangular blocky and massive; firm, sticky, plastic; many fine and medium interstitial pores; coarse fraction consists of pseudo-laterite; derived from shale and phyllite and subrounded phyllite, shale and quartz fragments; slightly acid (field pH 6.5).