Título:	Relationship between raindrops and ultrasonic energy on the disruption of a haplic cambisol.
Autor:	RIBEIRO, B. T. LIMA, J. M. de MELLO, C. R. de SA, M. A. C. de OLIVEIRA, G. C. de
Afiliación:	BRUNO TEIXEIRA RIBEIRO, UNIVERSIDADE FEDERAL DE LAVRAS JOSÉ MARIA DE LIMA, UNIVERSIDADE FEDERAL DE LAVRAS CARLOS ROGÉRIO DE MELLO, UNIVERSIDADE FEDERAL DE LAVRAS MARCOS AURELIO CAROLINO DE SA, CPAC GERALDO CÉSAR DE OLIVEIRA, UNIVERSIDADE FEDERAL DE LAVRAS.
Año:	2009
Referencia:	Ciência e Agrotecnologia, Lavras, v. 33, n. 3, p. 814-823, maio/jun., 2009.
Descripción:	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.
Thesagro:	Solo Chuva Erosão Estrutura do Solo
NAL Thesaurus:	rain soil soil structure
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CPAC)