Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/226176 |
Resumo: | The soil erodibility factor is represented by the integrated effect of processes that regulate the water infiltration, soil resistance and the transport of soil particles. Therefore, this study had as objective to estimate the soil erodibility in the Córrego do Tijuco watershed, São Paulo State, Brazil, for guiding farmers in decision making for application of techniques for soil conservation. The soil samples were collected in a regular spacing of 500 m, resulting in a total of 310 points in a 0-20.0 m depth in an area of approximately 8,000 ha. For the estimation of soil erodibility (K) was applied a mathematical model which takes into account the soil organic matter content, the sand and silt size fractions, the soil permeability, and the particle mean diameter for each point of soil sampling. Estimated values greater than 0.040 Mg ha h ha-1 MJ-1 mm-1 were considered very high for this factor. In areas with greater degree of erodibility occurs the Argisols order predominance, that shows high susceptibility to the development of interrill erosion due to its remarkable performance in relation to textural gradient, thereby, the interrill erosion rates can be very intensive due to rapid saturation of upper horizon, increasing the erosion process. At the Latosols (Oxisols) areas were also observed high soil erodibility values that under inappropriate conditions of soil occupation, concentrating runoff of rain water, leading to appear deep gullies. |
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Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SPSoil erodibility estimation for conversation planning in the córrego do tijuco watershed, Säo Paulo, BrazilErosionTextural gradientWatershedThe soil erodibility factor is represented by the integrated effect of processes that regulate the water infiltration, soil resistance and the transport of soil particles. Therefore, this study had as objective to estimate the soil erodibility in the Córrego do Tijuco watershed, São Paulo State, Brazil, for guiding farmers in decision making for application of techniques for soil conservation. The soil samples were collected in a regular spacing of 500 m, resulting in a total of 310 points in a 0-20.0 m depth in an area of approximately 8,000 ha. For the estimation of soil erodibility (K) was applied a mathematical model which takes into account the soil organic matter content, the sand and silt size fractions, the soil permeability, and the particle mean diameter for each point of soil sampling. Estimated values greater than 0.040 Mg ha h ha-1 MJ-1 mm-1 were considered very high for this factor. In areas with greater degree of erodibility occurs the Argisols order predominance, that shows high susceptibility to the development of interrill erosion due to its remarkable performance in relation to textural gradient, thereby, the interrill erosion rates can be very intensive due to rapid saturation of upper horizon, increasing the erosion process. At the Latosols (Oxisols) areas were also observed high soil erodibility values that under inappropriate conditions of soil occupation, concentrating runoff of rain water, leading to appear deep gullies.Faculdade de Ciências Agrárias e Veterinárias - FCAV Universidade Estadual Paulista - UNESP, Campus de Jaboticabal, Jaboticabal, SPDepartamento de Solos e Adubos FCAV - UNESP, Campus de Jaboticabal, Jaboticabal, SPDepartamento de Engenharia Rural FCAV - UNESP, Campus de Jaboticabal, Jaboticabal, SPFaculdade de Ciências Agrárias e Veterinárias - FCAV Universidade Estadual Paulista - UNESP, Campus de Jaboticabal, Jaboticabal, SPDepartamento de Solos e Adubos FCAV - UNESP, Campus de Jaboticabal, Jaboticabal, SPDepartamento de Engenharia Rural FCAV - UNESP, Campus de Jaboticabal, Jaboticabal, SPUniversidade Estadual Paulista (UNESP)Arraes, Christiano Luna [UNESP]Bueno, Célia Regina Paes [UNESP]Pissarra, Teresa Cristina Tarlé [UNESP]2022-04-28T21:50:33Z2022-04-28T21:50:33Z2010-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article849-857Bioscience Journal, v. 26, n. 6, p. 849-857, 2010.1516-37251981-3163http://hdl.handle.net/11449/2261762-s2.0-78650804962Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBioscience Journalinfo:eu-repo/semantics/openAccess2022-04-28T21:50:33Zoai:repositorio.unesp.br:11449/226176Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T21:50:33Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP Soil erodibility estimation for conversation planning in the córrego do tijuco watershed, Säo Paulo, Brazil |
title |
Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP |
spellingShingle |
Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP Arraes, Christiano Luna [UNESP] Erosion Textural gradient Watershed |
title_short |
Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP |
title_full |
Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP |
title_fullStr |
Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP |
title_full_unstemmed |
Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP |
title_sort |
Estimativa da erodibilidade do solo para fins conservacionistas na microbacia córrego do tijuco, SP |
author |
Arraes, Christiano Luna [UNESP] |
author_facet |
Arraes, Christiano Luna [UNESP] Bueno, Célia Regina Paes [UNESP] Pissarra, Teresa Cristina Tarlé [UNESP] |
author_role |
author |
author2 |
Bueno, Célia Regina Paes [UNESP] Pissarra, Teresa Cristina Tarlé [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Arraes, Christiano Luna [UNESP] Bueno, Célia Regina Paes [UNESP] Pissarra, Teresa Cristina Tarlé [UNESP] |
dc.subject.por.fl_str_mv |
Erosion Textural gradient Watershed |
topic |
Erosion Textural gradient Watershed |
description |
The soil erodibility factor is represented by the integrated effect of processes that regulate the water infiltration, soil resistance and the transport of soil particles. Therefore, this study had as objective to estimate the soil erodibility in the Córrego do Tijuco watershed, São Paulo State, Brazil, for guiding farmers in decision making for application of techniques for soil conservation. The soil samples were collected in a regular spacing of 500 m, resulting in a total of 310 points in a 0-20.0 m depth in an area of approximately 8,000 ha. For the estimation of soil erodibility (K) was applied a mathematical model which takes into account the soil organic matter content, the sand and silt size fractions, the soil permeability, and the particle mean diameter for each point of soil sampling. Estimated values greater than 0.040 Mg ha h ha-1 MJ-1 mm-1 were considered very high for this factor. In areas with greater degree of erodibility occurs the Argisols order predominance, that shows high susceptibility to the development of interrill erosion due to its remarkable performance in relation to textural gradient, thereby, the interrill erosion rates can be very intensive due to rapid saturation of upper horizon, increasing the erosion process. At the Latosols (Oxisols) areas were also observed high soil erodibility values that under inappropriate conditions of soil occupation, concentrating runoff of rain water, leading to appear deep gullies. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-11-01 2022-04-28T21:50:33Z 2022-04-28T21:50:33Z |
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 |
Bioscience Journal, v. 26, n. 6, p. 849-857, 2010. 1516-3725 1981-3163 http://hdl.handle.net/11449/226176 2-s2.0-78650804962 |
identifier_str_mv |
Bioscience Journal, v. 26, n. 6, p. 849-857, 2010. 1516-3725 1981-3163 2-s2.0-78650804962 |
url |
http://hdl.handle.net/11449/226176 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Bioscience Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
849-857 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964445389094912 |