Macro e Micromorfologia de Solos Francisco Sergio Bernardes Ladeira.
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Macro e Micromorfologia de Solos Francisco Sergio Bernardes Ladeira
Transcript of Macro e Micromorfologia de Solos Francisco Sergio Bernardes Ladeira.
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Macro e Micromorfologia de Solos
Francisco Sergio Bernardes Ladeira
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Definição - Estrutura
Padrão de arranjamento das partículas primárias do solo (areia, silte e argila) em unidades estruturais compostas que se chamam agregados.
Agregados são unidades naturais secundárias compostas pelas partículas primárias que são ligadas entre si por substâncias orgânicas, óxidos de ferro e de alumínio, carbonatos, sílica e a própria argila.
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Definição - Estrutura
• Podem ser:– Laminar– Prismática e Colunar– Em blocos (angulares e subangulares)– Granular
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Definição - Estrutura
• Além da forma as estruturas são classificadas por:
– Tamanho.– Grau de desenvolvimento.
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