Piping process: Genesis and network characterization through a pedological and geophysical approach
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.geoderma.2019.114101 http://hdl.handle.net/11449/198238 |
Resumo: | Piping is a soil erosion process initiated by concentrated subsurface water flow, which can develop in both natural and anthropogenic landscapes and causes various environmental impacts. The piping process acts as a relief modifier, leading to soil subsidence on a short time scale. This paper aims to provide a more comprehensive characterization of the piping process in a tropical forested area of Brazil. First, we sought to understand and examine the subsurface environment of the soil, using field description and soil sampling for chemical and physical analyses (pH, CEC, bulk density, total porosity, flocculation degree). Based on this information, we performed geophysical tests using Direct Current resistivity method (DC resistivity), with six lines of electrical resistivity tomography (ERT), to map the pipes and check the connection between subsurface tunnels. Data on the basic properties of the soil aided our interpretation of the geophysical results and the genesis of the piping process. The soil of the study area presented horizons in which textural variations accompanied changes in total porosity, bulk density and flocculation degree. The DC resistivity method efficiently detected the pipes (resistive zones of values >4000 O.m and high contrast with adjacent zones) and revealed the connection and continuity of the pipe network. While various factors may contribute to the subsurface erosive process in the study area, the decisive factor triggering the process seems to be the presence of a permeable layer that lies just above the impermeable layer, which may stop water infiltration and facilitate the lateral water movement. |
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Repositório Institucional da UNESP |
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Piping process: Genesis and network characterization through a pedological and geophysical approachDC resistivityElectrical resistivity tomography (ERT)PipePipe modelingSubsurface erosionTunnel erosionPiping is a soil erosion process initiated by concentrated subsurface water flow, which can develop in both natural and anthropogenic landscapes and causes various environmental impacts. The piping process acts as a relief modifier, leading to soil subsidence on a short time scale. This paper aims to provide a more comprehensive characterization of the piping process in a tropical forested area of Brazil. First, we sought to understand and examine the subsurface environment of the soil, using field description and soil sampling for chemical and physical analyses (pH, CEC, bulk density, total porosity, flocculation degree). Based on this information, we performed geophysical tests using Direct Current resistivity method (DC resistivity), with six lines of electrical resistivity tomography (ERT), to map the pipes and check the connection between subsurface tunnels. Data on the basic properties of the soil aided our interpretation of the geophysical results and the genesis of the piping process. The soil of the study area presented horizons in which textural variations accompanied changes in total porosity, bulk density and flocculation degree. The DC resistivity method efficiently detected the pipes (resistive zones of values >4000 O.m and high contrast with adjacent zones) and revealed the connection and continuity of the pipe network. While various factors may contribute to the subsurface erosive process in the study area, the decisive factor triggering the process seems to be the presence of a permeable layer that lies just above the impermeable layer, which may stop water infiltration and facilitate the lateral water movement.Geosciences and Exact Sciences Institute São Paulo State University (UNESP), 24-A Avenue, 1515, Bela VistaGeosciences and Exact Sciences Institute São Paulo State University (UNESP), 24-A Avenue, 1515, Bela VistaUniversidade Estadual Paulista (Unesp)Bovi, Renata Cristina [UNESP]Moreira, César Augusto [UNESP]Rosolen, Vânia Silvia [UNESP]Rosa, Fernanda Teles Gomes [UNESP]Furlan, Lucas Moreira [UNESP]Helene, Lívia Portes Innocenti [UNESP]2020-12-12T01:07:18Z2020-12-12T01:07:18Z2020-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.geoderma.2019.114101Geoderma, v. 361.0016-7061http://hdl.handle.net/11449/19823810.1016/j.geoderma.2019.1141012-s2.0-8507599282590868573123910800000-0002-6949-6679Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGeodermainfo:eu-repo/semantics/openAccess2021-10-23T10:02:43Zoai:repositorio.unesp.br:11449/198238Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T10:02:43Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Piping process: Genesis and network characterization through a pedological and geophysical approach |
title |
Piping process: Genesis and network characterization through a pedological and geophysical approach |
spellingShingle |
Piping process: Genesis and network characterization through a pedological and geophysical approach Bovi, Renata Cristina [UNESP] DC resistivity Electrical resistivity tomography (ERT) Pipe Pipe modeling Subsurface erosion Tunnel erosion |
title_short |
Piping process: Genesis and network characterization through a pedological and geophysical approach |
title_full |
Piping process: Genesis and network characterization through a pedological and geophysical approach |
title_fullStr |
Piping process: Genesis and network characterization through a pedological and geophysical approach |
title_full_unstemmed |
Piping process: Genesis and network characterization through a pedological and geophysical approach |
title_sort |
Piping process: Genesis and network characterization through a pedological and geophysical approach |
author |
Bovi, Renata Cristina [UNESP] |
author_facet |
Bovi, Renata Cristina [UNESP] Moreira, César Augusto [UNESP] Rosolen, Vânia Silvia [UNESP] Rosa, Fernanda Teles Gomes [UNESP] Furlan, Lucas Moreira [UNESP] Helene, Lívia Portes Innocenti [UNESP] |
author_role |
author |
author2 |
Moreira, César Augusto [UNESP] Rosolen, Vânia Silvia [UNESP] Rosa, Fernanda Teles Gomes [UNESP] Furlan, Lucas Moreira [UNESP] Helene, Lívia Portes Innocenti [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Bovi, Renata Cristina [UNESP] Moreira, César Augusto [UNESP] Rosolen, Vânia Silvia [UNESP] Rosa, Fernanda Teles Gomes [UNESP] Furlan, Lucas Moreira [UNESP] Helene, Lívia Portes Innocenti [UNESP] |
dc.subject.por.fl_str_mv |
DC resistivity Electrical resistivity tomography (ERT) Pipe Pipe modeling Subsurface erosion Tunnel erosion |
topic |
DC resistivity Electrical resistivity tomography (ERT) Pipe Pipe modeling Subsurface erosion Tunnel erosion |
description |
Piping is a soil erosion process initiated by concentrated subsurface water flow, which can develop in both natural and anthropogenic landscapes and causes various environmental impacts. The piping process acts as a relief modifier, leading to soil subsidence on a short time scale. This paper aims to provide a more comprehensive characterization of the piping process in a tropical forested area of Brazil. First, we sought to understand and examine the subsurface environment of the soil, using field description and soil sampling for chemical and physical analyses (pH, CEC, bulk density, total porosity, flocculation degree). Based on this information, we performed geophysical tests using Direct Current resistivity method (DC resistivity), with six lines of electrical resistivity tomography (ERT), to map the pipes and check the connection between subsurface tunnels. Data on the basic properties of the soil aided our interpretation of the geophysical results and the genesis of the piping process. The soil of the study area presented horizons in which textural variations accompanied changes in total porosity, bulk density and flocculation degree. The DC resistivity method efficiently detected the pipes (resistive zones of values >4000 O.m and high contrast with adjacent zones) and revealed the connection and continuity of the pipe network. While various factors may contribute to the subsurface erosive process in the study area, the decisive factor triggering the process seems to be the presence of a permeable layer that lies just above the impermeable layer, which may stop water infiltration and facilitate the lateral water movement. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:07:18Z 2020-12-12T01:07:18Z 2020-03-01 |
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 |
http://dx.doi.org/10.1016/j.geoderma.2019.114101 Geoderma, v. 361. 0016-7061 http://hdl.handle.net/11449/198238 10.1016/j.geoderma.2019.114101 2-s2.0-85075992825 9086857312391080 0000-0002-6949-6679 |
url |
http://dx.doi.org/10.1016/j.geoderma.2019.114101 http://hdl.handle.net/11449/198238 |
identifier_str_mv |
Geoderma, v. 361. 0016-7061 10.1016/j.geoderma.2019.114101 2-s2.0-85075992825 9086857312391080 0000-0002-6949-6679 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Geoderma |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1799965161945038848 |