Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.

Detalhes bibliográficos
Autor(a) principal: AQUINO, R. F.
Data de Publicação: 2013
Outros Autores: SILVA, M. L. N., FREITAS, D. A. F. de, CURI, N., AVANZI, J. C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/952622
Resumo: Rainfall erosivity is one of the main factors related to water erosion in the tropics. This work focused on relating soil loss from a typic dystrophic Tb Haplic Cambisol (CXbd) and a typic dystrophic Red Latosol (LVdf) to different patterns of natural erosive rainfall. The experimental plots of approximately 26 m2 (3 x 8.67 m) consisted of a CXbd area with a 0.15 m m-1 slope and a LVdf area with 0.12 m m-1 slope, both delimited by galvanized plates. Drainpipes were installed at the lower part of these plots to collect runoff, interconnected with a Geib or multislot divisor. To calculate erosivity (EI30), rainfall data, recorded continuously at a weather station in Lavras, were used. The data of erosive rainfall events were measured (10 mm precipitation intervals, accuracy 0.2 mm, 24 h period, 20 min intervals), characterized as rainfall events with more than 10 mm precipitation, maximum intensity > 24 mm h-1 within 15 min, or kinetic energy > 3.6 MJ, which were used in this study to calculate the rainfall erosivity parameter, were classified according to the moment of peak precipitation intensity in advanced, intermediate and delayed patterns. Among the 139 erosive rainfall events with CXbd soil loss, 60 % were attributed to the advanced pattern, with a loss of 415.9 Mg ha-1, and total losses of 776.0 Mg ha-1. As for the LVdf, of the 93 erosive rainfall events with soil loss, 58 % were listed in the advanced pattern, with 37.8 Mg ha-1 soil loss and 50.9 Mg ha-1 of total soil loss. The greatest soil losses were observed in the advanced rain pattern, especially for the CXbd. From the Cambisol, the soil loss per rainfall event was greatest for the advanced pattern, being influenced by the low soil permeability
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spelling Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.Erodibilidade do soloErosividade da chuvaChuvaErosão hídricaSoloEnergia cinéticaRainWater erosionKineticsRainfall erosivity is one of the main factors related to water erosion in the tropics. This work focused on relating soil loss from a typic dystrophic Tb Haplic Cambisol (CXbd) and a typic dystrophic Red Latosol (LVdf) to different patterns of natural erosive rainfall. The experimental plots of approximately 26 m2 (3 x 8.67 m) consisted of a CXbd area with a 0.15 m m-1 slope and a LVdf area with 0.12 m m-1 slope, both delimited by galvanized plates. Drainpipes were installed at the lower part of these plots to collect runoff, interconnected with a Geib or multislot divisor. To calculate erosivity (EI30), rainfall data, recorded continuously at a weather station in Lavras, were used. The data of erosive rainfall events were measured (10 mm precipitation intervals, accuracy 0.2 mm, 24 h period, 20 min intervals), characterized as rainfall events with more than 10 mm precipitation, maximum intensity > 24 mm h-1 within 15 min, or kinetic energy > 3.6 MJ, which were used in this study to calculate the rainfall erosivity parameter, were classified according to the moment of peak precipitation intensity in advanced, intermediate and delayed patterns. Among the 139 erosive rainfall events with CXbd soil loss, 60 % were attributed to the advanced pattern, with a loss of 415.9 Mg ha-1, and total losses of 776.0 Mg ha-1. As for the LVdf, of the 93 erosive rainfall events with soil loss, 58 % were listed in the advanced pattern, with 37.8 Mg ha-1 soil loss and 50.9 Mg ha-1 of total soil loss. The greatest soil losses were observed in the advanced rain pattern, especially for the CXbd. From the Cambisol, the soil loss per rainfall event was greatest for the advanced pattern, being influenced by the low soil permeabilityREGIMEIRE FREITAS AQUINO, INSTITUTO FEDERAL DE EDUCAÇÃO, São João Del Rei, MG; MARX LEANDRO NAVES SILVA, UFLA; DIEGO ANTONIO FRANÇA DE FREITAS, UFLA; NILTON CURI, UFLA; JUNIOR CESAR AVANZI, CNPASA.AQUINO, R. F.SILVA, M. L. N.FREITAS, D. A. F. deCURI, N.AVANZI, J. C.2013-03-11T11:11:11Z2013-03-11T11:11:11Z2013-03-1120132013-10-14T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Ciência do Solo, Viçosa, MG, v. 37, p. 213-220, 2013.http://www.alice.cnptia.embrapa.br/alice/handle/doc/952622enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T01:53:36Zoai:www.alice.cnptia.embrapa.br:doc/952622Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T01:53:36falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T01:53:36Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.
title Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.
spellingShingle Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.
AQUINO, R. F.
Erodibilidade do solo
Erosividade da chuva
Chuva
Erosão hídrica
Solo
Energia cinética
Rain
Water erosion
Kinetics
title_short Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.
title_full Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.
title_fullStr Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.
title_full_unstemmed Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.
title_sort Soil losses from typic cambisols and red latosol as related to three erosive rainfall patterns.
author AQUINO, R. F.
author_facet AQUINO, R. F.
SILVA, M. L. N.
FREITAS, D. A. F. de
CURI, N.
AVANZI, J. C.
author_role author
author2 SILVA, M. L. N.
FREITAS, D. A. F. de
CURI, N.
AVANZI, J. C.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv REGIMEIRE FREITAS AQUINO, INSTITUTO FEDERAL DE EDUCAÇÃO, São João Del Rei, MG; MARX LEANDRO NAVES SILVA, UFLA; DIEGO ANTONIO FRANÇA DE FREITAS, UFLA; NILTON CURI, UFLA; JUNIOR CESAR AVANZI, CNPASA.
dc.contributor.author.fl_str_mv AQUINO, R. F.
SILVA, M. L. N.
FREITAS, D. A. F. de
CURI, N.
AVANZI, J. C.
dc.subject.por.fl_str_mv Erodibilidade do solo
Erosividade da chuva
Chuva
Erosão hídrica
Solo
Energia cinética
Rain
Water erosion
Kinetics
topic Erodibilidade do solo
Erosividade da chuva
Chuva
Erosão hídrica
Solo
Energia cinética
Rain
Water erosion
Kinetics
description Rainfall erosivity is one of the main factors related to water erosion in the tropics. This work focused on relating soil loss from a typic dystrophic Tb Haplic Cambisol (CXbd) and a typic dystrophic Red Latosol (LVdf) to different patterns of natural erosive rainfall. The experimental plots of approximately 26 m2 (3 x 8.67 m) consisted of a CXbd area with a 0.15 m m-1 slope and a LVdf area with 0.12 m m-1 slope, both delimited by galvanized plates. Drainpipes were installed at the lower part of these plots to collect runoff, interconnected with a Geib or multislot divisor. To calculate erosivity (EI30), rainfall data, recorded continuously at a weather station in Lavras, were used. The data of erosive rainfall events were measured (10 mm precipitation intervals, accuracy 0.2 mm, 24 h period, 20 min intervals), characterized as rainfall events with more than 10 mm precipitation, maximum intensity > 24 mm h-1 within 15 min, or kinetic energy > 3.6 MJ, which were used in this study to calculate the rainfall erosivity parameter, were classified according to the moment of peak precipitation intensity in advanced, intermediate and delayed patterns. Among the 139 erosive rainfall events with CXbd soil loss, 60 % were attributed to the advanced pattern, with a loss of 415.9 Mg ha-1, and total losses of 776.0 Mg ha-1. As for the LVdf, of the 93 erosive rainfall events with soil loss, 58 % were listed in the advanced pattern, with 37.8 Mg ha-1 soil loss and 50.9 Mg ha-1 of total soil loss. The greatest soil losses were observed in the advanced rain pattern, especially for the CXbd. From the Cambisol, the soil loss per rainfall event was greatest for the advanced pattern, being influenced by the low soil permeability
publishDate 2013
dc.date.none.fl_str_mv 2013-03-11T11:11:11Z
2013-03-11T11:11:11Z
2013-03-11
2013
2013-10-14T11:11:11Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 37, p. 213-220, 2013.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/952622
identifier_str_mv Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 37, p. 213-220, 2013.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/952622
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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