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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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Ap
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0-25
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Pinkish (7.5YR6/2) silt loam; common fine and medium distinct strong brown (7.5YR5/8) mottles; moderate fine and medium subangular blocky structure; slightly sticky, plastic; many very fine roots; medium acid (field pH 6.0) clear, smooth boundary. |
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AB
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25-49
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Brown (7.5YR5/2) silt loam; common medium distinct yellowish red (5YR5/8) and strong brown (7.5YR5/6) mottles; moderate medium and coarse subangular blocky structure; hard, firm, slightly sticky, slightly plastic; patchy moderately thick clay coatings in pores; few very fine roots; few fine soft MnO2 nodules; moderately alkaline (field pH 8.0); clear, smooth boundary. |
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Bt1
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49-81
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Reddish brown (5YR4/4) coated by pinkish gray (5YR6/2) silt loam; common fine and medium distinct yellowish red (5YR5/6) mottles; moderate medium and coarse subangular blocky structure; firm, sticky, plastic; continuous moderately thick clay coatings on ped faces and in pore; very few very fine roots; common fine soft MnO2 nodules; moderately alkaline (field pH 8.0); clear, smooth boundary. |
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Bt2
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81-110
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Reddish brown (5YR4-5/4) coated by gray (5YR5/2) silt loam; common fine and medium distinct yellowish red (5YR5/6) mottles; moderate coarse subangular blocky structure; firm, sticky, plastic; continuous moderately thick clay coatings on ped faces and in pores; common fine soft MnO2 nodules; moderately alkaline (field pH 8.0); clear, smooth boundary. |
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Bt3
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110-165
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Reddish brown (5YR5/4) coated by reddish gray (5YR5/2) silt loam; common fine and medium distinct red (2.5YR5/6) and yellowish red (5YR5/8) mottles; moderate coarse subangular blocky structure; firm, sticky, plastic; continuous moderately thick clay coatings on ped faces and in pores; common medium soft and hard MnO2 nodules; moderately alkaline (field pH 8.0); clear, smooth boundary. |
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Bt4
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165-180+
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Reddish brown (5YR5/4) coated by reddish gray (5YR5/2) loam; common fine and medium distinct yellowish red (5YR5/8) mottles; moderate medium and coarse subangular blocky structure; friable, slightly sticky, slightly plastic; patchy thin clay coatings in pores; common medium soft and hard MnO2 nodules; moderately alkaline (field pH 8.0). |
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