Data/hora: 02/06/2024 02:23:00

Provedor de dados: 	90	
País: 	Brazil	
Título: 	Hydrological processes obtained on the plot scale under four simulated rainfall tests during the cycle of different crop systems	
Autores: 	Bertol,Ildegardis; Ramos,Roger Robert; Barbosa,Fabrício Tondello; Ramos,Julio César; Bandeira,Douglas Henrique; Tanaka,Mitsui Shinosaka.	
Data: 	2014-04-01	
Ano: 	2014	
Palavras-chave: 	Runoff rate; Runoff depth; Soil water infiltration.	
Resumo: 	The cropping system influences the interception of water by plants, water storage in depressions on the soil surface, water infiltration into the soil and runoff. The aim of this study was to quantify some hydrological processes under no tillage cropping systems at the edge of a slope, in 2009 and 2010, in a Humic Dystrudept soil, with the following treatments: corn, soybeans, and common beans alone; and intercropped corn and common bean. Treatments consisted of four simulated rainfall tests at different times, with a planned intensity of 64 mm h-1 and 90 min duration. The first test was applied 18 days after sowing, and the others at 39, 75 and 120 days after the first test. Different times of the simulated rainfall and stages of the crop cycle affected soil water content prior to the rain, and the time runoff began and its peak flow and, thus, the surface hydrological processes. The depth of the runoff and the depth of the water intercepted by the crop + soil infiltration + soil surface storage were affected by the crop systems and the rainfall applied at different times. The corn crop was the most effective treatment for controlling runoff, with a water loss ratio of 0.38, equivalent to 75 % of the water loss ratio exhibited by common bean (0.51), the least effective treatment in relation to the others. Total water loss by runoff decreased linearly with an increase in the time that runoff began, regardless of the treatment; however, soil water content on the gravimetric basis increased linearly from the beginning to the end of the rainfall.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200024	
Editor: 	Sociedade Brasileira de Ciência do Solo	
Relação: 	10.1590/S0100-06832014000200024	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Ciência do Solo  v.38 n.2 2014	
Fonte: 	info:eu-repo/semantics/openAccess