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	Provedor de dados Bragantia (1) Rev. Bras. Ciênc. Solo (1) Autor Bertol,Ildegardis (1) Bramorski,Julieta (1) Crestana,Silvio (1) Dafonte,Jorge Dafonte (1) De Maria,Isabella C. (1) Paz-Ferreiro,Jorge (1) Silva,Renato Lemos e (1) Siqueira,Glécio Machado (1) Vázquez,Eva Vidal (1) Mais... Palavra-chave Roughness index (2) Laser profile scanner (1) Simulated rain (1) Simulated rainfall (1) Soil tillage (1) Surface microrelief (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2012 (1) 2010 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Relations between soil surface roughness, tortuosity, tillage treatments, rainfall intensity and soil and water losses from a red yellow latosol Rev. Bras. Ciênc. Solo Bramorski,Julieta; De Maria,Isabella C.; Silva,Renato Lemos e; Crestana,Silvio. The soil surface roughness increases water retention and infiltration, reduces the runoff volume and speed and influences soil losses by water erosion. Similarly to other parameters, soil roughness is affected by the tillage system and rainfall volume. Based on these assumptions, the main purpose of this study was to evaluate the effect of tillage treatments on soil surface roughness (RR) and tortuosity (T) and to investigate the relationship with soil and water losses in a series of simulated rainfall events. The field study was carried out at the experimental station of EMBRAPA Southeastern Cattle Research Center in São Carlos (Fazenda Canchim), in São Paulo State, Brazil. Experimental plots of 33 m² were treated with two tillage practices in three... Tipo: Info:eu-repo/semantics/article Palavras-chave: Simulated rainfall; Laser profile scanner; Roughness index. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000400023 Evolution of the soil surface roughness using geostatistical analysis Bragantia Vázquez,Eva Vidal; Bertol,Ildegardis; Siqueira,Glécio Machado; Paz-Ferreiro,Jorge; Dafonte,Jorge Dafonte. The objective of this work was to investigate the decay of initial surface roughness induced by simulated rainfall under different soil residue cover and to compare classical statistical indices with geostatistical parameters. A conventionally tilled loamy soil with low structure stability, thus prone to crusting was placed at 1 m² microplots. Each microplot received three successive rainfall events which bring about cumulative 25 mm, 50 mm and 75 mm at 65 mm h-1 intensity. Five treatments without replication were tested with different corn straw quantities (0, 1, 2, 3 and 4 Mg ha"1). Soil surface microrelief was measured at the initial stage and after each simulated rainfall event. Five treatments and four surface stages were monitored, resulting in 20... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil tillage; Roughness index; Surface microrelief; Simulated rain. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000500015 Registros recuperados: 2 Primeira ... 1 ... Última

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