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¤Ó͸ԺÒÂâ»Ãä¿Åì´Ô¹ |
ª×èͪش´Ô¹ : ¹éÓàŹ Nam Len (Nal) |
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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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Ap
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0-28
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Dark brown (7.5YR3/2) silty clay; moderate fine subangular blocky structure; friable, sticky, plastic; many very fine and fine roots; medium acid (field pH 6.0); clear, smooth boundary. |
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Bt1
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28-53
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Reddish brown (5YR4/3-4) clay; moderate fine subangular blocky structure; friable, sticky, plastic; moderately thick continuous clay coatings on ped faces and in pores; common very fine and fine roots; strongly acid (field pH 5.5); clear, smooth boundary. |
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Bt2
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53-87
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Reddish brown (2.5YR4/4) clay; many fine prominent mottles of brown (7.5YR5/2); moderate medium subangular blocky structure; friable, sticky, plastic; moderately thick continuous clay coatings on ped faces and in pores; common very fine and fine roots; very strongly acid (field pH 5.0); clear, smooth boundary. |
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Bt3
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87-150
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Red (2.5YR4/8) clay; many medium prominent mottles of brown (7.5YR5/2); moderate coarse subangular blocky structure; firm, sticky, plastic; patchy thin clay coatings on ped faces and in pores; few very fine roots; few slickensides; medium acid (field pH 6.0); diffuse, smooth boundary. |
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BC
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150-180+
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Brown (7.5YR4/4), brownish yellow (10YR6/8) and light gray (10YR7/2) clay; weak very coarse subangular blocky structure; very firm, sticky, plastic; many slickensides; neutral (field pH 7.0). |
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