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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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Ap
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0-10/18
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Mixed dark grayish brown (10YR4/2) and brown (10YR5/3) sandy loam; moderate fine and medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; many very fine and fine roots; slightly acid (field pH6.5); clear, wavy boundary. |
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Bt1
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10/18-40
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Mixed grayish brown (10YR5/2) and brown (10YR5/3) sandy loam; strong very fine, fine and medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; patchy thin clay coatings on ped faces and in pores; common very fine and few medium roots; some charcoals fragments; moderate alkaline (field pH 8.0); clear, smooth boundary. |
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Bt2
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40-65
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Pale brown (10YR6/3) coarse sandy loam; moderate very fine and fine subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; patchy thin clay coatings on ped faces and in pores; common very fine roots; some termite holes activity; moderate alkaline (field pH 8.0); clear, smooth boundary. |
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Bt3
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65-88/90
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Pale brown (10YR6/3) coarse sandy loam; moderate to strong very fine and fine subangular blocky structure; hard, friable, nonsticky, nonplastic; patchy thin clay coatings on ped faces and in pores; common very fine roots; common rounded, soft manganese concretion; moderate alkaline (field pH 8.0); clear, smooth boundary. |
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Bt4
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88/90-140
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Pale brown (10YR6/3) slightly gravelly coarse loamy sand; moderate fine and medium subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; moderately thick clay coatings on ped faces and in pores; few very fine roots; common rounded soft and hard ferrous and manganese concretion; medium acid (field pH 6.0); clear, smooth boundary. |
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Bt5
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140-180+
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Pale brown (10YR6/3) slightly gravelly coarse loamy sand; weak to moderate very fine and fine subangular blocky structure; slightly hard, friable, nonsticky, nonplastic; patchy thin clay coatings on ped faces and in pores; common rounded soft and hard ferrous and manganese concretion; strongly acid (field pH 5.5). |
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