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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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Apg
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0-20
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Very dark gray (10YR3/1) clay; many medium distinct strong brown(7.5YR5/6) and yellowish red (5YR5/8) mottles; moderate medium and coarse subangular blocky (depth 0-10 cm) and coarse angular blocky structure; extremely hard, firm, very sticky very plastic; many very fine roots; moderately acid (field pH 6.0); clear, smooth boundary. |
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Bssg1
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20-56
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Mixed very dark gray (10YR3/1) and dark gray (10YR4/1) clay; many fine and medium faint dark reddish brown (10YR4/4) mottles; moderate coarse prismatic breaking to coarse angular blocky structure; firm, very sticky, very plastic; common very fine roots; many slickensides and pressure faces; common charcoal fragments; organic clay coated on crack surfaces; neutral (field pH 7.0); gradual, smooth boundary. |
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Bssg2
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56-110
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Dark gray (10YR4/1) clay; many fine faint dark yellowish brown (10YR4/4) and common fine faint dark grayish brown (10YR4/2) mottles; moderate coarse prismatic breaking to angular blocky structure; firm, very sticky, very plastic; many slickensides and pressure faces; common pieces of charcoal; neutral (field pH 7.0); clear, smooth boundary. |
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Bssg3
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110-135
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Very dark gray (10YR3/1) clay; many medium and coarse faint dark gray(10YR4/1) and common fine distinct yellowish brown (10YR5/6) mottles; weak coarse prismatic breaking to coarse angular blocky structure; firm, very sticky, very plastic; many slickensides and pressure faces; many black soft Fe&Mn concentrations; moderately acid (field pH 6.0); clear, wavy boundary. |
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Bssg4
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135-160+
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Mixed very dark gray (10YR3/1) and gray (10YR6/1) clay; many fine and medium prominent red (2.5YR4/8) and few fine distinct strong brown(7.5YR5/6) mottles; weak coarse prismatic breaking to coarse angular blocky structure; firm, very sticky, very plastic; many slickensides and pressure faces; very strongly acid (field pH 5.0) |
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