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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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A
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0-12
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Very dark brown (10YR2/2) sand; single grain; loose, nonsticky and nonplastic; porous; many fine and few medium roots; common shell fragment; moderately alkaline (field pH 8.0); abrupt smooth boundary. |
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AC
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12-45
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Dark brown (10YR3/3) sand; single grain; loose, nonsticky and nonplastic; porous; many fine roots; common medium shell fragment; slightly acid (field pH 6.5); abrupt smooth boundary. |
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C1
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45-90
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Yellowish brown (10YR5/8) sand; single grain; loose, nonsticky and nonplastic; porous; few fine roots; common fine shell fragment; neutral (field pH 7.0); clear smooth boundary. |
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C2
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90-120
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Brown to dark brown (7.5YR4/4) sand; single grain; loose, nonsticky and nonplastic; porous; no roots; many fine shell fragment; moderately alkaline (field pH 8.0); clear smooth boundary. |
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