ª×èͪÑé¹´Ô¹ |
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A
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0-20
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Dark brown (10YR3/3) loamy sand; weak fine subangular structure breaking to single grain; very friable, nonsticky and nonplastic; many fine interstitial pores; many fine roots; moderately acid (field pH 6.0); clear smooth boundary. |
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AC
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20-29
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Yellowish brown (10YR5/4) loamy sand; weak fine subangular blocky structure breaking to single grain; very friable, nonsticky and nonplastic; common fine interstitial and few fine tubular pores; common fine roots; slightly acid (field pH 6.5); gradual smooth boundary. |
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C1
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29-57
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Brownish yellow (10YR6/6) loamy sand; weak fine subangular blocky structure breaking to single grain; very friable, nonsticky and nonplastic; many fine interstitial pores; few fine roots; slightly acid (field pH 6.5); gradual smooth boundary. |
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C2
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57-106
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Brownish yellow (10YR6/8) loamy sand; weak fine subangular blocky structure breaking to single grain; very friable, nonsticky and nonplastic; many fine interstitial and tubular pores; few fine roots; slightly acid (field pH 6.5); gradual smooth boundary. |
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C3
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106+
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Reddish yellow (7.5YR6/8) loamy sand; weak fine subangular blocky structure breaking to single grain; very friable, nonsticky and nonplastic; many fine interstitial pores; few medium roots; moderately acid (field pH 6.0). |
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