Monthly and annual rainfall erosivity for Minas Gerais State

Detalhes bibliográficos
Autor(a) principal: Mello, Carlos Rogério de
Data de Publicação: 2007
Outros Autores: Sá, Marcos Aurélio Carolino de, Curi, Nilton, Mello, José Marcio de, Viola, Marcelo Ribeiro, Silva, Antônio Marciano da
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/7599
Resumo: This work aimed to map monthly and annual rainfall erosivity (EI30) mean, to analyze rainfall erosivity distribution, during rainfall season, and to identify rainfall erosivity zones in Minas Gerais State, Brazil. Daily pluviometric data from 248 weather stations dispersed in the State were used to determine the Fournier´s rainfall coefficient (Rc). Based on the relation EI30 x Rc obtained for some locations, EI30 was calculated for each weather station. Geostatistical tools were applied to map EI30 and pluviometric data. Minas Gerais comprises three zones with annual rainfall erosivity varying from 5,000 to 12,000 MJ mm ha-1 year-1: medium-high erosivity, for central, northeastern and part of Zona da Mata; high, for Triângulo Mineiro (extreme of the region), and part of northeast and south of State; and very high, for most part of Triângulo Mineiro, Alto Paranaíba, northwest and east of State. Rainfall erosion behavior has not presented relation with latitude and longitude, and was influenced by orographic effect and weather characteristics of each region.
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spelling Monthly and annual rainfall erosivity for Minas Gerais StateErosividade mensal e anual da chuva no Estado de Minas Geraiswater erosion; cartography; geostatistic; EI30erosão hídrica; mapeamento; geoestatística; EI30This work aimed to map monthly and annual rainfall erosivity (EI30) mean, to analyze rainfall erosivity distribution, during rainfall season, and to identify rainfall erosivity zones in Minas Gerais State, Brazil. Daily pluviometric data from 248 weather stations dispersed in the State were used to determine the Fournier´s rainfall coefficient (Rc). Based on the relation EI30 x Rc obtained for some locations, EI30 was calculated for each weather station. Geostatistical tools were applied to map EI30 and pluviometric data. Minas Gerais comprises three zones with annual rainfall erosivity varying from 5,000 to 12,000 MJ mm ha-1 year-1: medium-high erosivity, for central, northeastern and part of Zona da Mata; high, for Triângulo Mineiro (extreme of the region), and part of northeast and south of State; and very high, for most part of Triângulo Mineiro, Alto Paranaíba, northwest and east of State. Rainfall erosion behavior has not presented relation with latitude and longitude, and was influenced by orographic effect and weather characteristics of each region.Este trabalho objetivou estimar e mapear a erosividade média (EI30) mensal e anual, analisar a distribuição espacial da precipitação, durante o período chuvoso, e identificar zonas similares quanto a EI30 no Estado de Minas Gerais. Foram levantadas séries históricas de precipitação diária de 248 estações climatológicas para estimativa do coeficiente de chuva de Fournier (Rc). Baseado na relação EI30 x Rc, verificada em algumas localidades do Estado, o índice EI30 mensal foi estimado para as 248 estações. A geoestatística foi aplicada no mapeamento dos dados. O Estado de Minas Gerais pôde ser dividido em três zonas, com erosividade anual variando de 5.000 a 12.000 MJ mm ha-1 ano-1: erosividade média-alta, nas regiões central, nordeste e parte da Zona da Mata; alta, no Triângulo Mineiro (extremo da região), e parte do nordeste e sul do Estado; e muito alta, na maior parte do Triângulo Mineiro, Alto Paranaíba, noroeste e leste. A erosividade não apresentou relação com a latitude e longitude e foi influenciada por efeitos orográficos e características climáticas de cada região.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMello, Carlos Rogério deSá, Marcos Aurélio Carolino deCuri, NiltonMello, José Marcio deViola, Marcelo RibeiroSilva, Antônio Marciano da2007-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7599Pesquisa Agropecuaria Brasileira; v.42, n.4, abr. 2007; 537-545Pesquisa Agropecuária Brasileira; v.42, n.4, abr. 2007; 537-5451678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7599/4518info:eu-repo/semantics/openAccess2014-05-28T19:32:53Zoai:ojs.seer.sct.embrapa.br:article/7599Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-05-28T19:32:53Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Monthly and annual rainfall erosivity for Minas Gerais State
Erosividade mensal e anual da chuva no Estado de Minas Gerais
title Monthly and annual rainfall erosivity for Minas Gerais State
spellingShingle Monthly and annual rainfall erosivity for Minas Gerais State
Mello, Carlos Rogério de
water erosion; cartography; geostatistic; EI30
erosão hídrica; mapeamento; geoestatística; EI30
title_short Monthly and annual rainfall erosivity for Minas Gerais State
title_full Monthly and annual rainfall erosivity for Minas Gerais State
title_fullStr Monthly and annual rainfall erosivity for Minas Gerais State
title_full_unstemmed Monthly and annual rainfall erosivity for Minas Gerais State
title_sort Monthly and annual rainfall erosivity for Minas Gerais State
author Mello, Carlos Rogério de
author_facet Mello, Carlos Rogério de
Sá, Marcos Aurélio Carolino de
Curi, Nilton
Mello, José Marcio de
Viola, Marcelo Ribeiro
Silva, Antônio Marciano da
author_role author
author2 Sá, Marcos Aurélio Carolino de
Curi, Nilton
Mello, José Marcio de
Viola, Marcelo Ribeiro
Silva, Antônio Marciano da
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Mello, Carlos Rogério de
Sá, Marcos Aurélio Carolino de
Curi, Nilton
Mello, José Marcio de
Viola, Marcelo Ribeiro
Silva, Antônio Marciano da
dc.subject.por.fl_str_mv water erosion; cartography; geostatistic; EI30
erosão hídrica; mapeamento; geoestatística; EI30
topic water erosion; cartography; geostatistic; EI30
erosão hídrica; mapeamento; geoestatística; EI30
description This work aimed to map monthly and annual rainfall erosivity (EI30) mean, to analyze rainfall erosivity distribution, during rainfall season, and to identify rainfall erosivity zones in Minas Gerais State, Brazil. Daily pluviometric data from 248 weather stations dispersed in the State were used to determine the Fournier´s rainfall coefficient (Rc). Based on the relation EI30 x Rc obtained for some locations, EI30 was calculated for each weather station. Geostatistical tools were applied to map EI30 and pluviometric data. Minas Gerais comprises three zones with annual rainfall erosivity varying from 5,000 to 12,000 MJ mm ha-1 year-1: medium-high erosivity, for central, northeastern and part of Zona da Mata; high, for Triângulo Mineiro (extreme of the region), and part of northeast and south of State; and very high, for most part of Triângulo Mineiro, Alto Paranaíba, northwest and east of State. Rainfall erosion behavior has not presented relation with latitude and longitude, and was influenced by orographic effect and weather characteristics of each region.
publishDate 2007
dc.date.none.fl_str_mv 2007-04-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7599
url https://seer.sct.embrapa.br/index.php/pab/article/view/7599
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7599/4518
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.42, n.4, abr. 2007; 537-545
Pesquisa Agropecuária Brasileira; v.42, n.4, abr. 2007; 537-545
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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