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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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Ap
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0-16
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Dark grayish brown (10YR3/3) sandy loam; weak fine and medium subangular blocky structure; friable, slightly sticky, slightly plastic; many fine and medium roots; slightly acid (field pH 6.5); clear, slightly wavy boundary. |
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Bt1
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16-32
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Brown (7.5YR4/2) sandy loam; common medium distinct strong brown(7.5YR5/8) mottles; moderate medium and coarse subangular blocky structure; firm, slightly sticky, slightly plastic; patchy thin clay coatings on ped faces, few fine and medium roots; slightly acid (field pH 6.5); clear, smooth boundary. |
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Bt2
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32-49
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Brown (7.5YR5/2) sandy clay loam; many medium distinct yellowish brown (10YR5/6) mottles; very firm, sticky, plastic; patchy thin clay coatings on ped faces and continuous moderately thick in pores; few medium animal holes; few medium roots; slightly acid (field pH 6.5); gradual, smooth boundary. |
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Bt3
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49-81
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Brown (10YR5/3) heavy sandy clay loam; many medium and coarse prominent yellowish red (5YR5/8) mottles; strong medium and coarse subangular blocky structure; sticky, plastic; patchy thin clay coatings on ped faces and continuous thick in pores; few charcoal pieces and many fine animal holes; one medium roots; very strongly acid (field pH 4.5); gradual, smooth boundary. |
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Bt4
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81-110+
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Pale brown (10YR6/3) sandy clay; many medium yellowish red (5YR5/8) and few fine distinct reddish yellow (7.5YR6/8) mottles; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; patchy thin clay coatings on ped faces and continuous moderately thick in pores; few medium and few large roots; very strongly acid (field pH 4.5). |
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