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ª×èͪÑé¹´Ô¹ |
¤ÇÒÁÅÖ¡(«Á.) |
¤Ó͸ԺÒªÑé¹´Ô¹ |
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Ac
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0-5
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Brown to dark brown (7.5YR4/4) gravelly clay loam; weak fine and medium granular structure; friable, slightly sticky, slightly plastic; many fine and few medium roots; gravels composed of laterite and some quartz diameter 2-3 mm about 25-35% of soil matrix; medium acid (field pH 6.0); gradual, smooth boundary. |
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ABc
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5-14
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Strong brown (7.5YR4/6) very gravelly clay loam; weak to moderate fine and medium subangular blocky structure; friable, slightly sticky, slightly plastic; few medium and one large roots; gravels composed of pseudolaterite 40-60% of soil matrix; strongly acid (field pH 5.5); mostly gradual, smooth boundary. |
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Btc1
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14-35
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Yellowish red (5YR4/6) very gravelly clay; moderate fine and medium subangular blocky structure; firm, sticky, plastic; patchy thin clay coating on ped and gravel faces; common medium roots; gravels mostly composed of pseudolaterite about 40-60% of soil matrix; strongly acid (field pH 5.5) gradual, smooth boundary. |
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Btc2
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35-71
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Yellowish red (5YR4/6) gravelly clay; moderate fine and medium subangular blocky structure; firm, sticky, plastic; moderately thick clay coating on gravels faces; common medium roots; gravels composed of pseudolaterite and quartz; strongly acid (field pH 5.5); clear, smooth boundary. |
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Btc3
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71-115+
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Mixed, red (2.5YR5/8) strong brown (7.5YR5/8) yellowish brown (10YR7/6) gravelly clay; moderate medium subangular blocky structure; firm, sticky, plastic; moderate thick clay coating on ped faces; strongly acid (field pH 5.5). |
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