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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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Ap
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0-16
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Dark brown (7.5YR3/2) silt loam; strong fine and medium granular structure; hard, firm, nonsticky, slightly plastic; few fine tubular and interstitial pores, common very fine roots; common fine mica flakes; medium acid (field pH 6.0); gradual, smooth boundary. |
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Bt1
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16-33
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Reddish brown (5YR4/4) silty clay loam; moderate medium subangular blocky structure; hard, firm, slightly sticky, slightly plastic; common fine tubular and few fine interstitial pores; common fine roots; few pieces of charcoal; medium acid (field pH 6.0); gradual, smooth boundary. |
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Bt2
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33-90
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Reddish brown (5YR4/4) silty clay loam; common fine faint weak red (10R4/4) mottles; strong medium and coarse subangular blocky structure; hard, firm, sticky, plastic; common fine and medium interstitial and tubular pores; common broken moderately thick clay coating on ped faces; medium acid (field pH 6.0); gradual, smooth boundary. |
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Bt3
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90-120
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Red (10R4/8) silty clay; many fine pinkish gray (5YR6/2) mottles; hard, firm, sticky, plastic; broken moderately thick clay coating on ped faces; medium acid (field pH 6.0); gradual, smooth boundary. |
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Bt4
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120-170
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Red (10R4/6) clay; many fine pinkish gray (5YR6/2) mottles; hard, firm, sticky, plastic; common soft iron-manganese concretions; medium acid (field pH 6.0); gradual, smooth boundary. |
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Bt5
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170-210
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Red (10R4/8) clay; many medium light yellowish brown (10YR6/4) mottles; hard, firm, sticky, plastic; slightly acid (field pH 6.5). |
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