|
|
|
|
| |
|
|
| Streck,E. V.; Cogo,N. P.. |
| Site-specific regression coefficient values are essential for erosion prediction with empirical models. With the objective to investigate the surface-soilconsolidation factor, Cf, linked to the RUSLE's prior-land-use subfactor, PLU, an erosion experiment using simulated rainfall on a 0.075 m m-1 slope, sandy loam Paleudult soil, was conducted at the Agriculture Experimental Station of the Federal University of Rio Grande do Sul (EEA/UFRGS), in Eldorado do Sul, State of Rio Grande do Sul, Brazil. Firstly, a row-cropped area was excluded from cultivation (March 1995), the existing crop residue removed from the field, and the soil kept clean-tilled the rest of the year (to get a degraded soil condition for the intended purpose of this research). The soil was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water erosion; Simulated rainfall; Soil consolidation; RUSLE equation. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832003000100015 |
| |
|
| |
|
|
| Bertol,Ildegardis; Ramos,Roger Robert; Barbosa,Fabrício Tondello; González,Antonio Paz; Ramos,Julio César; Bandeira,Douglas Henrique. |
| Water erosion is the major cause of soil and water losses and the main factor of degradation of agricultural areas. The objective of this work was to quantify pluvial water erosion from an untilled soil with crop rows along the contour, in 2009 and 2010, on a Humic Dystrupept, with the following treatments: a) maize monoculture; b) soybean monoculture; c) common bean monoculture; d) intercropped maize and bean, exposed to four simulated rainfall tests of on hour at controlled intensity (64 mm h-1). The first test was applied 18 days after sowing and the others; 39, 75 and 120 days after the first test. The crop type influenced soil loss through water erosion in the simulated rainfall tests 3 and 4; soybean was most effective in erosion control in test 3,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water losses; Soil losses; Simulated rainfall. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000200023 |
| |
|
| |
|
| |
|
|
| Silva,Fábio F. da; Souza,Thais E. M. dos S.; Souza,Edivan R. de; Correa,Marcelo M.; Rolim,Mário M.. |
| ABSTRACT Evaluating soil sealing process of the semi-arid region of Brazil is important to describe this process and mitigate its effects. The objective of this work was to evaluate surface sealing and physical properties of the main soils of the Upper Ipanema watershed, in Pesqueira, Pernambuco state, Brazil, with the use of mulch. The experiment was conducted in a completely randomized design with three replications, using a 3 × 3 × 2 factorial arrangement consisted of three soil classes (abruptic Eutrophic Yellow Argissolo - AEYA, typical Eutrophic Fluvic Neossolo - TEFN, and typical Eutrophic Yellow Argissolo - TEYA), three application times of simulated rainfalls (at 0, 24, and 48 h), and two mulching conditions (with and without mulch), totaling 54... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil micromorphology; Simulated rainfall; Soil cover. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000400277 |
| |
|
|
| Bertol,Ildegardis; Mello,Eloy Lemos; Guadagnin,Jean Cláudio; Zaparolli,Almir Luis Vedana; Carrafa,Marcos Roberto. |
| Water erosion causes soil degradation, which is closely related to nutrient losses either in, the soluble form or adsorbed to soil particles, depending mainly on the adopted soil management system. This study was carried out in São José do Cerrito, SC, Brazil, between March 2000 and June 2001. The objective was to quantify available nitrogen, phosphorus, potassium, calcium and magnesium losses in water erosion obtained with simulated rainfall in the following soil management systems: conventional tillage with no-crop (bare soil) (BS), conventional tillage with soybean (CT), reduced tillage with soybean (RT), no tillage with soybean on a desiccated and burned natural pasture (DBNP), and no tillage with soybean on a desiccated natural pasture (DNP). A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nutrient concentration; Water loss; Simulated rainfall. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300025 |
| |
|
|
|
