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Registro Completo |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
30/10/2012 |
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Data da última atualização: |
09/11/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AQUINO, R. F.; SILVA, M. L. N.; FREITAS, D. A. F. de; CURI, N.; MELLO, C. R. de; AVANZI, J. C. |
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Afiliação: |
REGIMEIRE FREITAS AQUINO, INSTITUTO FEDERAL DE EDUCAÇÃO-São João Del Rei, MG; MARX LEANDRO NAVES SILVA, UNIVERSIDADE FEDERAL DE LAVRAS; DIEGO ANTONIO FRANÇA DE FREITAS, UNIVERSIDADE FEDERAL DE LAVRAS; NILTON CURI, UNIVERSIDADE FEDERAL DE LAVRAS; CARLOS ROGÉRIO DE MELLO, UNIVERSIDADE FEDERAL DE LAVRAS; JUNIOR CESAR AVANZI, CNPASA. |
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Título: |
Spatial variability of the rainfall erosivity in southern region of Minas Gerais State, Brazil. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, Lavras, v. 36, n. 5, p. 533-542, set./out. 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Rainfall erosivity and its spatial variability were studied for 54 pluviometric stations in Southern Minas Gerais State (48º00? - 44º00?W; 23º50? - 20º00?S), aiming to plan the land-use strategies. Therefore, erosivity factor was determined for the pluviometric stations, using long-term rainfall data sets obtained along with the Brazilian National Water Agency? ANA, which varied from 15 to 40 years. The monthly and annual erosivity indexes were generated using Fournier equation for Lavras, MG and the spatial distribution of rainfall erosivity was studied on the basis of geostatistical approaches considering only the distance which separates them, developing the isotropic experimental semivariogram. The semivariogram adjustment was done based on the Weighted Least Squares method and the spatial dependence degree. Once the structure and the semivariogram adjustment were defined, the ordinary kriging maps were created, providing erosivity spatial behavior in Southern Minas Gerais. It was observed that the Southern Minas Gerais presents high erosivity patterns, ranging from 5,145 to 7,776 MJ mm ha-1 h-1 year-1, in Ijaci (north of region) and Itajubá (southern region), respectively. Besides, it was verified that the erosivity indexes are intensely influenced by the topography, associated with climatic conditions. Higher erosivity is connected to areas with a higher altitude, such as along the Mantiqueira Range Mountain, and on high plateaus and mountain ranges in the North-Central part of the region. The geostatistical approach using longterm rainfall data in Southern region of Minas Gerais state, which is a relatively heterogeneous region in terms of altitude, soil depth and slope, showed to be adequate to the proposal of this study. MenosRainfall erosivity and its spatial variability were studied for 54 pluviometric stations in Southern Minas Gerais State (48º00? - 44º00?W; 23º50? - 20º00?S), aiming to plan the land-use strategies. Therefore, erosivity factor was determined for the pluviometric stations, using long-term rainfall data sets obtained along with the Brazilian National Water Agency? ANA, which varied from 15 to 40 years. The monthly and annual erosivity indexes were generated using Fournier equation for Lavras, MG and the spatial distribution of rainfall erosivity was studied on the basis of geostatistical approaches considering only the distance which separates them, developing the isotropic experimental semivariogram. The semivariogram adjustment was done based on the Weighted Least Squares method and the spatial dependence degree. Once the structure and the semivariogram adjustment were defined, the ordinary kriging maps were created, providing erosivity spatial behavior in Southern Minas Gerais. It was observed that the Southern Minas Gerais presents high erosivity patterns, ranging from 5,145 to 7,776 MJ mm ha-1 h-1 year-1, in Ijaci (north of region) and Itajubá (southern region), respectively. Besides, it was verified that the erosivity indexes are intensely influenced by the topography, associated with climatic conditions. Higher erosivity is connected to areas with a higher altitude, such as along the Mantiqueira Range Mountain, and on high plateaus and mountain ranges in the North-Centra... Mostrar Tudo |
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Palavras-Chave: |
Krigagem; Minas Gerais; Potencial erosivo; Sustentabilidade do solo. |
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Thesagro: |
Precipitação pluvial; Solo. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/938467/1/aquino.pdf
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Marc: |
LEADER 02503naa a2200253 a 4500
001 1938467
005 2012-11-09
008 2012 bl uuuu u00u1 u #d
100 1 $aAQUINO, R. F.
245 $aSpatial variability of the rainfall erosivity in southern region of Minas Gerais State, Brazil.
260 $c2012
520 $aRainfall erosivity and its spatial variability were studied for 54 pluviometric stations in Southern Minas Gerais State (48º00? - 44º00?W; 23º50? - 20º00?S), aiming to plan the land-use strategies. Therefore, erosivity factor was determined for the pluviometric stations, using long-term rainfall data sets obtained along with the Brazilian National Water Agency? ANA, which varied from 15 to 40 years. The monthly and annual erosivity indexes were generated using Fournier equation for Lavras, MG and the spatial distribution of rainfall erosivity was studied on the basis of geostatistical approaches considering only the distance which separates them, developing the isotropic experimental semivariogram. The semivariogram adjustment was done based on the Weighted Least Squares method and the spatial dependence degree. Once the structure and the semivariogram adjustment were defined, the ordinary kriging maps were created, providing erosivity spatial behavior in Southern Minas Gerais. It was observed that the Southern Minas Gerais presents high erosivity patterns, ranging from 5,145 to 7,776 MJ mm ha-1 h-1 year-1, in Ijaci (north of region) and Itajubá (southern region), respectively. Besides, it was verified that the erosivity indexes are intensely influenced by the topography, associated with climatic conditions. Higher erosivity is connected to areas with a higher altitude, such as along the Mantiqueira Range Mountain, and on high plateaus and mountain ranges in the North-Central part of the region. The geostatistical approach using longterm rainfall data in Southern region of Minas Gerais state, which is a relatively heterogeneous region in terms of altitude, soil depth and slope, showed to be adequate to the proposal of this study.
650 $aPrecipitação pluvial
650 $aSolo
653 $aKrigagem
653 $aMinas Gerais
653 $aPotencial erosivo
653 $aSustentabilidade do solo
700 1 $aSILVA, M. L. N.
700 1 $aFREITAS, D. A. F. de
700 1 $aCURI, N.
700 1 $aMELLO, C. R. de
700 1 $aAVANZI, J. C.
773 $tCiência e Agrotecnologia, Lavras$gv. 36, n. 5, p. 533-542, set./out. 2012.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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| 5. |  | BISPO, V. R. de S.; SOUSA, M. B. e; SOUZA, G. D. de; CARVALHO, R. R. B. de; OLIVEIRA, L. A. de; OLIVEIRA, E. J. de. Classificação de genótipos de mandioca quanto à presença de compostos cianogênicos nas raízes via espectroscopia na região do visível (VIS) e infravermelho próximo (NIR). In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 13., 2019. Foco e valor : resumos. Cruz das Almas, BA: Embrapa Mandioca e Fruticultura,2019. 119 p. il.| Tipo: Resumo em Anais de Congresso |
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| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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