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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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A
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0-15
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Dark brown (10YR3/4) loamy sand; weak fine subangular blocky structure breaking to single grain; very friable, nonsticky, nonplastic; many fine tubular and interstitial pores; common fine, few medium and one coarse roots; medium acid (field pH 6.0); clear, smooth boundary. |
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AB
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15-28
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Brown (7.5YR5/4) loamy sand; weak fine subangular blocky structure breaking to single grain; very friable, nonsticky, nonplastic; many fine and few medium tubular and interstitial pores; few fine, few medium roots; one termite hole; medium acid (field pH 6.0); clear, smooth boundary. |
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Bt1
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28-52
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Reddish brown (5YR5/4) and strong brown (7.5YR5/6) sandy loam; weak fine and medium subangular blocky structure; very friable, slightly sticky, slightly plastic; patchy thin clay coating on ped faces; many fine, few medium tubular and interstitial pores; few fine medium and coarse roots; slightly acid (field pH 6.5); gradual, smooth boundary. |
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Bt2
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52-95
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Light reddish brown (5YR6/4) and strong brown (7.5YR5/6) sandy loam; weak fine and medium subangular blocky structure; very friable, slightly sticky, slightly plastic; patchy thin clay coating on ped faces; many fine, few medium tubular and interstitial pores; very few fine and few medium roots; slightly acid (field pH 6.5); gradual, smooth boundary. |
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Bt3
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95-120
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Light reddish brown (5YR6/3) sandy loam; many fine and medium distinct strong brown (7.5YR5/8) mottles; moderate to strong medium and coarse subangular blocky structure; slightly firm, sticky, plastic; patchy thin clay coating on ped faces and in pores; common fine tubular and interstitial pores; very few very fine roots; hard and packed horizon; slightly acid (field pH 6.5). |
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