Friabilidad del suelo: métodos de estimación con énfasis en la determinación cuantitativa de la resistencia al rompimiento

Edgar Alvaro Avila Pedraza

doi:10.22490/21456453.1840

Vol. 8 No. 1 (2017)

Published 2017-01-13

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Artículos de Investigación

Friabilidad del suelo: métodos de estimación con énfasis en la determinación cuantitativa de la resistencia al rompimiento

DOI: https://doi.org/10.22490/21456453.1840

Edgar Alvaro Avila Pedraza Departamento de Suelos y Aguas. Facultad de Ingeniería Agronómica. Universidad del Tolima. Ibagué. Colombia

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Abstract
References

Entender el comportamiento de la friabilidad permite la toma de decisiones apropiadas para la reducción del consumo de energía, el manejo y la conservación de la calidad física del suelo. Este artículo sintetiza los métodos utilizados actualmente para la determinación de la friabilidad del suelo, con énfasis en el método de resistencia al rompimiento -RR-. La friabilidad puede ser determinada a partir de métodos cualitativos, semicuantitativos y cuantitativos. El análisis cualitativo se basa en el examen visual de la estructura y consistencia del suelo, mientras que el análisis semi-cuantitativo se centra en la cuantificación de la distribución de agregados o fragmentos producto del sometimiento del suelo a impacto por caída. Los métodos cuantitativos permiten determinar la friabilidad de forma directa mediante la resistencia del suelo, o de forma indirecta, por inferencia a partir del comportamiento de otras propiedades del suelo: curva de retención de agua, porosidad y funciones de pedotransferencia. El método cuantitativo de RR se realiza mediante la compresión de agregados naturales o remoldeados de suelo hasta lograr su fractura, y es uno de los más aceptados. Los métodos cualitativos se realizan directamente en campo, de manera fácil y rápida pero su resultado es menos confiable. Los métodos semicuantitativos, rompimiento del suelo por caída, pueden realizarse en campo o laboratorio pero no ofrecen información precisa sobre la resistencia del suelo. Los métodos cuantitativos, implican el transporte de las muestras al laboratorio, mayor tiempo de ejecución y equipos y personal especializado, pero sus resultados son más confiables y reproducibles.

keywords: índice de friabilidad, agregados del suelo, calidad del suelo, resistencia a la compresió, n labranza del suelo.

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How to Cite

Avila Pedraza, E. A. (2017). Friabilidad del suelo: métodos de estimación con énfasis en la determinación cuantitativa de la resistencia al rompimiento. Revista De Investigación Agraria Y Ambiental, 8(1), 81-94. https://doi.org/10.22490/21456453.1840

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