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| Lense,Guilherme Henrique Expedito; Parreiras,Taya Cristo; Moreira,Rodrigo Santos; Avanzi,Junior Cesar; Mincato,Ronaldo Luiz. |
| ABSTRACT Water erosion is one of the main problems faced in coffee cultivation, as it promotes environmental degradation and crop yield decrease. Erosion estimates support the planning of conservation management practices and allowing determining the rates of soil losses. Thus, the objective of this paper was to estimate the soil loss by water erosion using the Erosion Potential Method in a sub-basin predominantly covered by coffee cultivation and then to compare the results with the Soil Loss Tolerance limits. The study area is the Coroado Stream Sub-basin, located at Alfenas Municipality, south of Minas Gerais, Brazil. The sub-basin presented an Erosion Coefficient of 0.272, indicating a predominance of low-intensity erosion. The total soil loss estimate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil conservation; Water erosion; Modeling.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100225 |
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| Olivetti,Diogo; Mincato,Ronaldo Luiz; Ayer,Joaquim Ernesto Bernardes; Silva,Marx Leandro Naves; Curi,Nilton. |
| Water erosion is one of the most important soil degradation processes and it can be intensified by land use and vegetal covering changes. Thus, water erosion modeling studies associated to multi temporal analyses of land use are effective in assessing how changes in land cover affects sediment yield. Therefore, considering the modifications in the land use from 1986 to 2011, the aim of this study ranged to estimate water erosion rates and compare them to the soil loss tolerance (SLT) limit in the Latosols (Oxisols) at Ribeirão Caçús sub-basin, in the South of Minas Gerais State, Southeast Brazil, by means of the Revised Universal Soil Loss Equation (RUSLE) in association with the geographic information system (GIS), and geostatistical techniques. So, for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Land use changes; RUSLE; Soil loss prediction; Soil degradation. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000100058 |
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| Lense,Guilherme Henrique Expedito; Moreira,Rodrigo Santos; Bócoli,Fernanda Almeida; Avanzi,Junior Cesar; Teodoro,Alexandre Elias de Miranda; Mincato,Ronaldo Luiz. |
| ABSTRACT Among the parameters considered by the Revised Universal Soil Loss Equation (RUSLE), the soil cover and management factor (C) is the main human influenced factor affecting the estimation of water erosion, and one of the most sensitive to spatiotemporal variations. Consequently, this study aims to compare the efficiency of C factor estimates obtained from the literature for each land-use class (Clit) and by calculation based on the Normalized Difference Vegetation Index (CNDVI). We test the hypothesis that soil loss estimates based on CNDVI approach are more accurate than those based on Clit. Water erosion was estimated based on soil morphological, physical, and chemical properties in addition to climate, relief, management practices, and land use... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil conservation; Water erosion; Modeling; RUSLE. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100214 |
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| Mendes Júnior,Henrique; Tavares,André Silva; Reis dos Santos Júnior,Walbert; Silva,Marx Leandro Naves; Santos,Breno Régis; Mincato,Ronaldo Luiz. |
| ABSTRACT Water erosion is one of the main environmental impacts of land use. When soil and water losses occur, nutrients essential for the growth and maintenance of plants are removed, with harmful outcomes on the sustainability of agriculture and the environment. In addition, they lead to other deleterious effects, such as sedimentation and eutrophication of water bodies. Estimation of soil losses due to water erosion in sub-basins is essential for prediction of soil degradation, especially in areas of semi-intensive cultivation, such as coffee fields. Thus, the aim of this study was to estimate soil losses in relation to the limit of soil loss tolerance in Oxisols (Latossolos Vermelhos Distróficos) under coffee cultivation. This study was conducted from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil loss; RUSLE; Soil loss tolerance. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100521 |
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| Cândido,Bernardo Moreira; Silva,Marx Leandro Naves; Curi,Nilton; Freitas,Diego Antônio França de; Mincato,Ronaldo Luiz; Ferreira,Mozart Martins. |
| A avaliação da qualidade dos solos agrícolas é importante para definição e adoção de práticas de manejo que garantam a sustentabilidade socioeconômica e ambiental. Os métodos de indexação dos indicadores de qualidade denominados Índice de Qualidade Integrado (IQI) e Índice de Qualidade Nemoro (IQN) foram utilizados neste estudo para avaliar a qualidade de solo em áreas experimentais de plantio de eucalipto. A seleção dos indicadores foi feita a partir de nove indicadores de qualidade do solo: diâmetro médio geométrico, permeabilidade à água, matéria orgânica, macro e microporosidade, volume total de poros, densidade do solo, resistência à penetração e índice de floculação, que estão relacionados à erosão hídrica. Os tratamentos constituíram de eucalipto... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Índice de qualidade integrado; Índice de qualidade Nemoro; Sustentabilidade; Eucalipto; Conservação ambiental. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000200589 |
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| Sakuno,Natanael Rodolfo Ribeiro; Guiçardi,Augusto Cesar Ferreira; Spalevic,Velibor; Avanzi,Junior Cesar; Silva,Marx Leandro Naves; Mincato,Ronaldo Luiz. |
| ABSTRACT The water erosion process has a considerable negative effect on tropical soils, causes soil losses from arable land and reduces the capacity to support surrounding ecosystems. Estimating soil losses caused by water erosion is fundamental for evaluating the impacts of various production systems. Therefore, improving soil loss estimates via the adaptation of models for different edaphoclimatic environments is necessary for estimating local geographic and climatic differences. This study aimed to adapt, apply and evaluate the potentialities of the Potential Erosion Method for Latosols of the Hydrographic Subbasin of Caçús Stream, southern Minas Gerais State. Geological, topographic, pedological, climatic and land use and occupation data were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Modeling of water erosion; RUSLE; Tropical soils. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100409 |
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