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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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A
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0-7/15
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Very dark brown (10YR2/2) loam; moderate fine and medium subangular blocky structure; friable, nonsticky, nonplastic; many fine and common medium roots; few fragments of 1.5-3 cm in diameter; slightly acid (field pH 6.5); clear, wavy boundary. |
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BA
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7/15-22
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Dark reddish brown (5YR5/3) clay loam; moderate fine and medium subangular blocky structure; firm, slightly sticky, slightly plastic; fine and medium roots; some inclusion of the A material brought down by biological activities; slightly acid (field pH 6.5); clear, smooth boundary. |
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Bt1
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22-50
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Dark reddish brown (2.5YR3/4) clay; moderate fine and medium subangular blocky structure; firm, slightly sticky, slightly plastic; patchy thin clay coatings on ped faces; common fine and medium roots; slightly acid (field pH 6.5); gradual, smooth boundary. |
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Bt2
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50-79
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Dark red (2.5YR3/6) clay; moderate medium breaking to fine subangular blocky structure; firm, slightly sticky, slightly plastic; patchy thin clay coatings on ped faces and continuous moderately thick in pores; common very fine and fine roots; some inclusion of the material brought down by biological activities; few weathering rock fragments of about 0-5 cm in diameter; medium acid (field pH 6.0); diffuse, smooth boundary. |
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Bt2
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79-115+
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Red (2.5YR4/8) clay; moderate fine and medium breaking to fine subangular blocky structure; firm, slightly sticky, slightly plastic; patchy thin clay coatings on aggregate faces and continuous moderately thick in pores; few fine roots; weathering rock fragments of about 3-10 cm in diameter; medium acid (field pH 6.0). |
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