Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil

Detalhes bibliográficos
Autor(a) principal: Silva, Bárbara Pereira Christofaro
Data de Publicação: 2016
Outros Autores: Silva, Marx Leandro Naves, Batista, Pedro Velloso Gomes, Pontes, Lucas Machado, Araújo, Elias Frank, Curi, Nilton
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/32771
Resumo: Monitoring water erosion and the factors that control soil and water loss are essential for soil conservation planning. The objective of this study was to evaluate soil and water losses by water erosion under natural rainfall in eucalyptus plantations established in 2001 (EF2), and 2004 (EF1), native forest (NF) and bare soil (BS), during the period of 2007 to 2012; and to determine the USLE factors: rain erosivity (R), erodibility (K) of a Red Argisol and the cover-management factor (C) for EF1, EF2 and NF at a pilot sub-basin, in Eldorado do Sul, RS, Brazil. The R factor was estimated by the EI30 index, using rainfall data from a gauging station located at the sub-basin. The soil and water losses were monitored in erosion plots, providing consistent data for the estimation of the K and C factors. The sub-basin presented an average erosivity of 4,228.52 MJ mm ha-1 h-1 yr-1. The average annual soil losses em EF1 and EF2 (0.81 e 0.12 Mg ha-1 year-1, respectively) were below of the limit of tolerance, 12.9 Mg ha-1 year-1. The percentage values of water loss relating to the total rainfall decreased annually, approaching the values observed at the NF. From the 5th year on after the implantation of the eucalyptus systems, soil losses values were similar to the ones from NF. The erodibility of the Red Argisol was of 0.0026 Mg ha h ha-1 MJ-1mm-1 and the C factor presented values of 0.121, 0.016 and 0.015 for EF1, EF2 and NF, respectively.
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spelling Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, BrazilPerdas de solo e água em plantios de eucalipto e floresta nativa e determinação dos fatores da USLE em sub-bacia hidrográfica piloto no Rio Grande do Sul, BrasilWater erosionSoil erodibilityRainfall erosivityCover-management factorErosão hídricaErodibilidade do soloErosividade da chuvaFator cobertura e manejoMonitoring water erosion and the factors that control soil and water loss are essential for soil conservation planning. The objective of this study was to evaluate soil and water losses by water erosion under natural rainfall in eucalyptus plantations established in 2001 (EF2), and 2004 (EF1), native forest (NF) and bare soil (BS), during the period of 2007 to 2012; and to determine the USLE factors: rain erosivity (R), erodibility (K) of a Red Argisol and the cover-management factor (C) for EF1, EF2 and NF at a pilot sub-basin, in Eldorado do Sul, RS, Brazil. The R factor was estimated by the EI30 index, using rainfall data from a gauging station located at the sub-basin. The soil and water losses were monitored in erosion plots, providing consistent data for the estimation of the K and C factors. The sub-basin presented an average erosivity of 4,228.52 MJ mm ha-1 h-1 yr-1. The average annual soil losses em EF1 and EF2 (0.81 e 0.12 Mg ha-1 year-1, respectively) were below of the limit of tolerance, 12.9 Mg ha-1 year-1. The percentage values of water loss relating to the total rainfall decreased annually, approaching the values observed at the NF. From the 5th year on after the implantation of the eucalyptus systems, soil losses values were similar to the ones from NF. The erodibility of the Red Argisol was of 0.0026 Mg ha h ha-1 MJ-1mm-1 and the C factor presented values of 0.121, 0.016 and 0.015 for EF1, EF2 and NF, respectively.O monitoramento da erosão hídrica e o conhecimento dos fatores que causam perdas de solo e água são essenciais para o planejamento conservacionista do solo. Objetivou-se com esse trabalho avaliar as perdas de solo e água por erosão hídrica, sob chuva natural, em plantios de eucalipto estabelecidos em 2001 (FE2) e 2004 (FE1), floresta nativa (FN) e solo descoberto (SD), no período de 2007 a 2012; e determinar os fatores da USLE: erosividade da chuva (R), erodibilidade (K) de um Argissolo Vermelho e o fator cobertura vegetal (C) para FE1, FE2 e FN, em sub-bacia hidrográfica piloto, em Eldorado do Sul, RS. O fator R foi estimado pelo índice EI30, a partir de dados pluviométricos obtidos em estação climatológica instalada na sub-bacia. As perdas de solo e água foram monitoradas em parcelas experimentais, fornecendo dados consistentes para a estimativa dos fatores K e C. A sub-bacia apresentou uma erosividade média de 4.228.52 MJ mm ha-1 h-1 ano-1. As perdas médias anuais de solo em FE1 e FE2 (0.81 e 0.12 Mg ha-1 ano-1, respectivamente) foram muito abaixo do limite de tolerância 12,9 Mg ha-1 ano-1. Os valores percentuais de perdas de água relativos à precipitação pluvial total decresceram anualmente, aproximando-se dos valores observados em FN. A partir do 5º ano após implantação dos sistemas de eucalipto o comportamento dos mesmos foi semelhante ao da FN, no tocante à erosão hídrica. A erodibilidade do ArgissoloVermelho foi de 0,0026 Mg ha h ha-1 MJ-1 mm-1 e o fator C apresentou valores de 0,121, 0,016 e 0,015 para FE1, FE2 e FN, respectivamente.Universidade Federal de Lavras2019-02-15T09:26:02Z2019-02-15T09:26:02Z2016-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSILVA, B. P. C. et al. Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil. Ciência e Agrotecnologia, Lavras, v. 40, n. 4, p. 432-442, July/Aug. 2016.http://repositorio.ufla.br/jspui/handle/1/32771Ciência e Agrotecnologiareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessSilva, Bárbara Pereira ChristofaroSilva, Marx Leandro NavesBatista, Pedro Velloso GomesPontes, Lucas MachadoAraújo, Elias FrankCuri, Niltoneng2019-02-15T09:26:03Zoai:localhost:1/32771Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-02-15T09:26:03Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil
Perdas de solo e água em plantios de eucalipto e floresta nativa e determinação dos fatores da USLE em sub-bacia hidrográfica piloto no Rio Grande do Sul, Brasil
title Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil
spellingShingle Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil
Silva, Bárbara Pereira Christofaro
Water erosion
Soil erodibility
Rainfall erosivity
Cover-management factor
Erosão hídrica
Erodibilidade do solo
Erosividade da chuva
Fator cobertura e manejo
title_short Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil
title_full Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil
title_fullStr Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil
title_full_unstemmed Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil
title_sort Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil
author Silva, Bárbara Pereira Christofaro
author_facet Silva, Bárbara Pereira Christofaro
Silva, Marx Leandro Naves
Batista, Pedro Velloso Gomes
Pontes, Lucas Machado
Araújo, Elias Frank
Curi, Nilton
author_role author
author2 Silva, Marx Leandro Naves
Batista, Pedro Velloso Gomes
Pontes, Lucas Machado
Araújo, Elias Frank
Curi, Nilton
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, Bárbara Pereira Christofaro
Silva, Marx Leandro Naves
Batista, Pedro Velloso Gomes
Pontes, Lucas Machado
Araújo, Elias Frank
Curi, Nilton
dc.subject.por.fl_str_mv Water erosion
Soil erodibility
Rainfall erosivity
Cover-management factor
Erosão hídrica
Erodibilidade do solo
Erosividade da chuva
Fator cobertura e manejo
topic Water erosion
Soil erodibility
Rainfall erosivity
Cover-management factor
Erosão hídrica
Erodibilidade do solo
Erosividade da chuva
Fator cobertura e manejo
description Monitoring water erosion and the factors that control soil and water loss are essential for soil conservation planning. The objective of this study was to evaluate soil and water losses by water erosion under natural rainfall in eucalyptus plantations established in 2001 (EF2), and 2004 (EF1), native forest (NF) and bare soil (BS), during the period of 2007 to 2012; and to determine the USLE factors: rain erosivity (R), erodibility (K) of a Red Argisol and the cover-management factor (C) for EF1, EF2 and NF at a pilot sub-basin, in Eldorado do Sul, RS, Brazil. The R factor was estimated by the EI30 index, using rainfall data from a gauging station located at the sub-basin. The soil and water losses were monitored in erosion plots, providing consistent data for the estimation of the K and C factors. The sub-basin presented an average erosivity of 4,228.52 MJ mm ha-1 h-1 yr-1. The average annual soil losses em EF1 and EF2 (0.81 e 0.12 Mg ha-1 year-1, respectively) were below of the limit of tolerance, 12.9 Mg ha-1 year-1. The percentage values of water loss relating to the total rainfall decreased annually, approaching the values observed at the NF. From the 5th year on after the implantation of the eucalyptus systems, soil losses values were similar to the ones from NF. The erodibility of the Red Argisol was of 0.0026 Mg ha h ha-1 MJ-1mm-1 and the C factor presented values of 0.121, 0.016 and 0.015 for EF1, EF2 and NF, respectively.
publishDate 2016
dc.date.none.fl_str_mv 2016-07
2019-02-15T09:26:02Z
2019-02-15T09:26:02Z
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 SILVA, B. P. C. et al. Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil. Ciência e Agrotecnologia, Lavras, v. 40, n. 4, p. 432-442, July/Aug. 2016.
http://repositorio.ufla.br/jspui/handle/1/32771
identifier_str_mv SILVA, B. P. C. et al. Soil and water losses in eucalyptus plantation and natural forest and determination of the USLE factors at a pilot sub-basin in Rio Grande do Sul, Brazil. Ciência e Agrotecnologia, Lavras, v. 40, n. 4, p. 432-442, July/Aug. 2016.
url http://repositorio.ufla.br/jspui/handle/1/32771
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras
publisher.none.fl_str_mv Universidade Federal de Lavras
dc.source.none.fl_str_mv Ciência e Agrotecnologia
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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