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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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Oe
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0-30
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Dark brown (10YR3/3) unrubbed and rubbed, fibric materials and loam about 60% fiber; mostly consisting of undecomposed fine roots; massive; slightly sticky, nonplastic; react with a- dipyridyl but not with bentizine; sodium pyrophosphate test paper is light brown (7.5YR6/4); very strongly acid (field pH 5.0). |
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Oi
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30-85
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Dark brown (10YR3/2) unrubbed, dark reddish brown (5YR3/2) rubbed, fibric materials about 80% fiber; woody fragments of less than 1 cm consist about 50% and can be rubbed; massive; nonsticky, nonplastic; not react with a-dipyridyl and bentizine; sodium pyrophosphate test paper is pinkish white (7.5YR8/2); very strongly acid (field pH 5.0). |
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Cg1
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85-110
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Mixed gray (5Y5/1) and dark brown (10YR3/3) clay, unrubbed (muddy), estimated 15% fibric materials and wood fragments; massive; sticky, plastic; strongly react with a-dipyridyl but not bentizine; very strongly acid (field pH 5.0). |
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Cg2
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110-170
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Greenish gray (5GY5/1) clay, unrubbed (muddy); massive; sticky, plastic; strongly react with a- dipyridyl but not bentizine; strongly acid (field pH 5.5). |
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