Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/37240
Título: Relationship between raindrops and ultrasonic energy on the disruption of a haplic cambisol
Título(s) alternativo(s): Relação entre energia de gotas de chuva e energia ultra-sônica na desagregação de um cambissolo háplico
Palavras-chave: Estrutura do solo
Ultra-som
Soil structure
Ultrasound
Data do documento: 2009
Editor: Universidade Federal de Lavras
Citação: RIBEIRO, B. T. et al. Relationship between raindrops and ultrasonic energy on the disruption of a haplic cambisol. Ciência e Agrotecnologia, Lavras, v. 33, n. 3, p. 814-823, 2009.
Resumo: The aim of this work was to compare aggregate disruption of undisturbed soil samples by ultrasonic energy to aggregate disruption caused by the energy of simulated raindrops, to provide equations that can describe this relationship, and to evaluate whether aggregate stability, expressed by sonication method, may be used to estimate the effect that raindrops have on undisturbed soil samples. Undisturbed soil samples from A, Bi and C horizons of a Cambisol were submitted to different levels of ultrasonic energy and simulated raindrops. Sieved samples (aggregates) were also submitted to different levels of ultrasonic energy so that both disturbed and undisturbed conditions of samples could be compared. The results showed that the method using ultrasonic energy on undisturbed soil samples can simulate the amount of aggregate disruption of soil due to raindrop impact. Dispersion curves of disturbed samples may not be used to estimate the effect of raindrops on undisturbed soil samples.
URI: http://repositorio.ufla.br/jspui/handle/1/37240
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