Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA

Detalhes bibliográficos
Autor(a) principal: Guimarães, Danielle Vieira
Data de Publicação: 2016
Outros Autores: Silva, Marx Leandro Naves, Curi, Nilton, Melo Neto, José de Oliveira, Batista, Pedro Velloso Gomes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/37073
Resumo: Rain is an active factor in erosion and the knowledge of its erosive potential is of great importance for planning soil conservation technologies, however there is still a lack of information regarding rainfall erosivity in the Brazil, principally in the region Northeast. Thus, the objective of this study was to determine and model the rainfall erosivity and associate it to recurrence intervals in the region of Teixeira de Freitas, in the extreme south of the state of Bahia. The rainfall erosivity was determined by the erosivity index in 30 minutes (EI30), considering the kinetic energy of rainfall and its maximum intensity in 30 minutes. Probability distributions were applied and the best fit was used for determining the erosivity return period. The average annual erosivity for the region was 3,722.0 MJ mm ha-1 h-1 yr-1 and the best fitting distribution was the Log-Normal 2P.
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spelling Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BAEI30Erosivity index in 30 minutes (EI30)Water erosionReturn timeRainfall erosivityErosão hídricaTempo de retornoErosividade da chuvaRain is an active factor in erosion and the knowledge of its erosive potential is of great importance for planning soil conservation technologies, however there is still a lack of information regarding rainfall erosivity in the Brazil, principally in the region Northeast. Thus, the objective of this study was to determine and model the rainfall erosivity and associate it to recurrence intervals in the region of Teixeira de Freitas, in the extreme south of the state of Bahia. The rainfall erosivity was determined by the erosivity index in 30 minutes (EI30), considering the kinetic energy of rainfall and its maximum intensity in 30 minutes. Probability distributions were applied and the best fit was used for determining the erosivity return period. The average annual erosivity for the region was 3,722.0 MJ mm ha-1 h-1 yr-1 and the best fitting distribution was the Log-Normal 2P.A chuva é o fator ativo na erosão hídrica e o conhecimento do seu potencial erosivo é de grande im-portância para o planejamento de tecnologias conservacionistas, entretanto ainda há carência desta informação para o Brasil, sobretudo a região Nordeste. Deste modo, o objetivo do presente estudo foi determinar e modelar a erosividade, bem como obter a estimativa da mesma associando-a a tempos de recorrência específicos na região de Teixeira de Freitas, Extremo Sul do estado da Bahia. A erosivi-dade da chuva foi determinada por meio do índice de erosividade em 30 minutos (EI30), que considera a energia cinética da chuva e sua intensidade máxima em 30 minutos. Foram aplicadas distribuições de probabilidade, usando a melhor ajustada para determinação da erosividade no período de retorno a ela associado. A erosividade média anual para a região foi 3.722,0 MJ mm ha-1 h-1 ano-1 e a distribuição de melhor ajuste foi a Log-Normal 2P.Universidade Federal de Minas Gerais (UFMG), Instituto de Ciências Agrárias (ICA), Campus Montes Claros2019-10-02T17:18:56Z2019-10-02T17:18:56Z2016-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfGUIMARÃES, D. V. et al. Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA. Caderno de Ciências Agrárias, Montes Claros, v. 8, n. 2, p. 14-22, mai./ago. 2016.http://repositorio.ufla.br/jspui/handle/1/37073Caderno de Ciências Agráriasreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessGuimarães, Danielle VieiraSilva, Marx Leandro NavesCuri, NiltonMelo Neto, José de OliveiraBatista, Pedro Velloso Gomeseng2019-10-02T17:18:56Zoai:localhost:1/37073Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-10-02T17:18:56Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA
title Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA
spellingShingle Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA
Guimarães, Danielle Vieira
EI30
Erosivity index in 30 minutes (EI30)
Water erosion
Return time
Rainfall erosivity
Erosão hídrica
Tempo de retorno
Erosividade da chuva
title_short Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA
title_full Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA
title_fullStr Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA
title_full_unstemmed Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA
title_sort Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA
author Guimarães, Danielle Vieira
author_facet Guimarães, Danielle Vieira
Silva, Marx Leandro Naves
Curi, Nilton
Melo Neto, José de Oliveira
Batista, Pedro Velloso Gomes
author_role author
author2 Silva, Marx Leandro Naves
Curi, Nilton
Melo Neto, José de Oliveira
Batista, Pedro Velloso Gomes
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Guimarães, Danielle Vieira
Silva, Marx Leandro Naves
Curi, Nilton
Melo Neto, José de Oliveira
Batista, Pedro Velloso Gomes
dc.subject.por.fl_str_mv EI30
Erosivity index in 30 minutes (EI30)
Water erosion
Return time
Rainfall erosivity
Erosão hídrica
Tempo de retorno
Erosividade da chuva
topic EI30
Erosivity index in 30 minutes (EI30)
Water erosion
Return time
Rainfall erosivity
Erosão hídrica
Tempo de retorno
Erosividade da chuva
description Rain is an active factor in erosion and the knowledge of its erosive potential is of great importance for planning soil conservation technologies, however there is still a lack of information regarding rainfall erosivity in the Brazil, principally in the region Northeast. Thus, the objective of this study was to determine and model the rainfall erosivity and associate it to recurrence intervals in the region of Teixeira de Freitas, in the extreme south of the state of Bahia. The rainfall erosivity was determined by the erosivity index in 30 minutes (EI30), considering the kinetic energy of rainfall and its maximum intensity in 30 minutes. Probability distributions were applied and the best fit was used for determining the erosivity return period. The average annual erosivity for the region was 3,722.0 MJ mm ha-1 h-1 yr-1 and the best fitting distribution was the Log-Normal 2P.
publishDate 2016
dc.date.none.fl_str_mv 2016-08
2019-10-02T17:18:56Z
2019-10-02T17:18:56Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv GUIMARÃES, D. V. et al. Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA. Caderno de Ciências Agrárias, Montes Claros, v. 8, n. 2, p. 14-22, mai./ago. 2016.
http://repositorio.ufla.br/jspui/handle/1/37073
identifier_str_mv GUIMARÃES, D. V. et al. Rainfall erosivity and recurrence analysis for the region of Teixeira de Freitas, BA. Caderno de Ciências Agrárias, Montes Claros, v. 8, n. 2, p. 14-22, mai./ago. 2016.
url http://repositorio.ufla.br/jspui/handle/1/37073
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Minas Gerais (UFMG), Instituto de Ciências Agrárias (ICA), Campus Montes Claros
publisher.none.fl_str_mv Universidade Federal de Minas Gerais (UFMG), Instituto de Ciências Agrárias (ICA), Campus Montes Claros
dc.source.none.fl_str_mv Caderno de Ciências Agrárias
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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