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| Dias,Adriana Cristina; Silva,Marx Leandro Naves; Freitas,Diego Antonio França de; Batista,Pedro Velloso Gomes; Curi,Nilton; Carvalho,Gabriel José de. |
| Water erosion is responsible for soil, water, carbon and nutrient losses, turning into the most important type of degradation of Brazilian soils. This study aimed to evaluate the influence of three cover plants under two tillage systems on water erosion control in an Argisol at south of Minas Gerais state, Brazil. The cover plants utilized in the study were pigeon pea, jack bean and millet, under contour seeding and downslope tillage. Experimental plots of 4 x 12 m, with 9% slope, under natural rainfall were used for the quantification of losses of soil, water, nutrients, and organic matter. One experimental plot was kept without plant cover (reference). Higher erosivity was observed in December and January, although a great quantity of erosive rainfall... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil conservation; Tillage systems; Vegetal cover; Erosivity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500004 |
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| Maranhão,Deyvid Diego Carvalho; Aguado,Oscar Ivan de Oro; Pereira,Marcos Gervasio; Araújo,Adelson Paulo; Castro,Selma Simões de; Ferreira Júnior,Laerte Guimarães. |
| ABSTRACT The Cerrado is a vegetation complex with a wide variety of phytophysiognomies, and sustainable management is essential for maintaining biodiversity. Morphopedology is a tool that can assist in developing plans for control of soil and land use, especially in evaluating the potential of soil erosion processes. This technique allows landscape units considered “homogeneous” to be distinguished, as a result of interaction between physiographic conditions. The aim of this study was to evaluate potential for erosion in São Miguel do Araguaia, state of Goiás, Brazil, through definition of morphopedological compartments (MPC), on the assumption that soil use has increased erosion. Landscape units were identified through use of geology overlay, hypsometry,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erosivity; Erodibility; Pedology; Geomorphology; Soil science. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100514 |
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| Lima,Cleene A. de; Palácio,Helba A. de Q.; Andrade,Eunice M. de; Santos,Julio C. N. dos; Brasil,Paulilo P.. |
| The characteristics of rainfall can provide important information for management and land use may also minimize the water erosion problems. This study was carried out to evaluate soil and water loss in erosion plots with different coverage, and the interference of natural rainfall characteristics on these processes. The experiment was carried out during the rainy season in the years of 2009 and 2010, on three erosion plots, each of 20 m², and under different land use conditions: native 'caatinga', thinned 'caatinga' and natural herbaceous cover. The rainfall was classified into three different rainfall patterns, characterized as early, intermediate and late. The predominant rainfall pattern for the two years under study was early rainfall with 47.6%,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rainfall intensity; Erosivity; Water erosion. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662013001100014 |
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| Almeida,Wilk S. de; Carvalho,Daniel F. de; Pereira,Fernandes A. C.; Rouws,Janaína R. C.. |
| ABSTRACT The study was carried out to evaluate sediment production, water infiltration and surface runoff in an Ultisol under simulated rainfalls with similar erosivity, but different combinations of intensity (Int) and duration (Dur). The rainfalls were applied after soil tillage in the period from August to September 2017, in Seropédica, RJ State, Brazil. Using a computer program, the treatments were defined from the erosivity calculated for a rainfall with intensity of 60 mm h-1 and duration of 60 min, resulting in the other combinations of Int and Dur: 44.5 mm h-1 and 106 min; 53.5 mm h-1 and 78 min; 66.9 mm h-1 and 48 min; and 76.5 mm h-1 and 38 min, in a completely randomized design with five repetitions. Sediment production varied from 2.17 to 6.11... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erosivity; Rainfall intensity; Rainfall duration; Surface runoff. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000800572 |
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| Pinheiro,Antonio G.; Souza,Thais E. M. dos S.; Montenegro,Suzana M. G. L.; Montenegro,Abelardo A. de A.; Guerra,Sérgio M. S.. |
| ABSTRACT The objective of the present study was to characterize the spatial and temporal (2000-2015) rainfall pattern variability and erosive potential in the different physiographic regions of the state of Pernambuco, Brazil. Rainfall data series (3 to 12 years) from 25 weather stations of the state were analyzed. Erosive rainfall events (more than 10 mm depth) were considered to evaluate the annual erosivity index, monthly erosivity index (EI30), rainfall erosivity factor (R), and rainfall pattern. The inverse distance weighting (IDW) - inverse of the square of the distance - was used to create spatial interpolation and develop maps. The rainfall data from the weather stations showed average annual rainfall of 827 mm and average erosivity of 4,784 MJ mm... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erosivity; Mapping; Rainfall characterization; Precipitation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001200849 |
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| Bandeira,Douglas H.; Bertol,Ildegardis; Vázquez,Eva V.; Ramos,Júlio C.; Bertol,Camilo. |
| ABSTRACT Water erosion in soil is influenced by several factors, including rain, relief, cover, and management and conservation practices. Also, erosion is affected by pig slurry (PS) applied to the soil as a fertilizer. The objectives of this research were i): to evaluate water erosion in a Humic Cambisol cultivated with Zea mays L., Avena strigosa, Glycyne max L., and Raphanus sativus in rotation after PS dispersal under different tillage treatments, namely: no-tillage (NT), minimum tillage (MT), rotation tillage (RT) and conventional tillage (CT) , and ii): to compare erosion before and after PS application in a single dose of 50 m3 ha-1 in each crop, soon after the germination of the crops. NT had lower soil and water loss, which were reduced by 81 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation tillage; Erosivity; Crop rotation; Organic fertilization. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000600425 |
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