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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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AP
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0-3/4
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Dark grayish brown (10YR4/2) silt loam to silty clay loam; moderate medium subangular blocky structure; slightly firm, slightly sticky, slightly plastic; common fine and very fine interstitial pores and few fine tubular pores; many fine and very fine roots; common fine animal holes; some of them filled with earth worm casts; slightly acid (field pH 6.5); clear, smooth boundary. |
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AB
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3/4-11
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Brown (7.5YR5/2-3) silty clay loam; moderate fine and medium subangular blocky structure; slightly firm, slightly sticky, slightly plastic; many very fine and fine interstitial pores and few fine tubular pores; many very fine and fine, common medium and few large roots; common fine animal holes; strongly acid (field pH 5.5); gradual, smooth boundary. |
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Bt1
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11-23
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Yellowish red (5YR4/6) silty clay loam; strong medium subangular blocky breaking to strong fine subangular blocky structure; friable, sticky, plastic; patchy moderately thick clay coating on large ped faces and broken moderately thick on small ped faces; many very fine and fine interstitial, common fine tubular and few fine vesicular pores; common fine medium and large roots; common fine animal holes; very strongly acid, (field pH 5.0); gradual, smooth boundary. |
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Bt2
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23-42
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Yellowish red (5YR4/8) silty clay to clay; strong medium subangular blocky breaking to strong fine subangular blocky structure; firm, sticky, plastic; broken moderately thick clay coating on ped faces and some continuous on ped faces in places; common very fine and few medium interstitial, few medium tubular pores; common fine, few medium and large roots; few fine and medium animal holes; few fine hard rounded iron oxide concretions; very strongly acid (field pH 5.0); gradual, smooth boundary. |
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Bt3
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42-85
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Yellowish red (5YR4/8) and red (2.5YR4/6) clay, moderate medium subangular blocky breaking to strong fine subangular blocky structure; friable, sticky, plastic; broken moderately thick clay coating on ped faces and in places continuous on ped faces; many very fine interstitial, common fine tubular pores; common fine and few fine roots; few fine gray spots; few fine hard rounded iron oxide concretions; very strongly acid (field pH 4.5); gradual, smooth boundary. |
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Bt4
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85-150+
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Yellowish red (5YR4/8) clay loam to clay; many fine light gray (10YR7/2) spots; weak coarse subangular blocky breaking to moderate medium subangular blocky structures; firm, slightly sticky, plastic; patchy moderately thick clay coating on ped faces; many very fine and common fine interstitial, common fine tubular pores; few fine roots; few fine hard subrounded iron-manganese nodules; very strongly acid; (field pH 4.5). |
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