Data/hora: 16/06/2024 06:28:20

Biblioteca(s): 	Embrapa Cerrados.	
Data corrente: 	09/11/2009	
Data da última atualização: 	05/08/2013	
Autoria: 	RIBEIRO, B. T.; LIMA, J. M. de; MELLO, C. R. de; SA, M. A. C. de; OLIVEIRA, G. C. de.	
Afiliação: 	BRUNO TEIXEIRA RIBEIRO, UFLA; JOSÉ MARIA DE LIMA, UFLA; CARLOS ROGÉRIO DE MELLO, UFLA; MARCOS AURELIO CAROLINO DE SA, CPAC; GERALDO CÉSAR DE OLIVEIRA, UFLA.	
Título: 	Relationship between raindrops and ultrasonic energy on the disruption of a haplic cambisol.	
Ano de publicação: 	2009	
Fonte/Imprenta: 	Ciência e Agrotecnologia, Lavras, v. 33, n. 3, p. 814-823, maio/jun., 2009.	
Idioma: 	Inglês	
Conteúdo: 	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.	
Palavras-Chave: 	Aggregation; Agregação; Erosion; Ultra-Som; Ultrasound.	
Thesagro: 	Chuva; Erosão; Estrutura do Solo; Solo.	
Thesaurus Nal: 	rain; soil; soil structure.	
Categoria do assunto: 	P Recursos Naturais, Ciências Ambientais e da Terra	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/86976/1/ribeiro-bt-01-2009.pdf	
Registro original: 	Embrapa Cerrados (CPAC)	
Exemplares: 	CPAC - (30909-1) - UPC - AP - PP - S1277 -  - S1277 - DIS