Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil

Detalhes bibliográficos
Autor(a) principal: Pinto, Leandro Campos
Data de Publicação: 2019
Outros Autores: Mello, Carlos Rogério de, Norton, Lloyd Darrell, Curi, Nilton
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/40164
Resumo: Brazil is a large country that depends on the hydroelectricity generation hydropower dams. The Upper Grande River Basin (UGRB) is one of the most important Brazilian hydrological regions in terms of water availability and electric energy production. Therefore, studies of water availability are indispensable for a better and more successful decision making in water resources management in the region. This study objective to approach the land-use influence on the soil hydrology in the Upper Grande River Basin, a strategic headwater basin of southeastern Brazil. This study uses hydrological indicators (baseflow/runoff (BF/R) and overland flow/runoff (OF/R)) extracted from eight watersheds, varying the size and localization in the region, to support the results found. Soil saturated hydraulic conductivity (Ko) was determined in situ using a constant flow permeameter, totaling 224 sampled points. Five machine learning algorithms were compared in their performance to predict Ko (Random Forest, Support Vector Machine, Gradient Boosting, Linear Regression, Regularization) using terrain attributes as covariates. The tested methods for predicting Ko resulted in a relatively low coefficient of determination (R2) due to the high spatial variability of this soil hydrologic attribute. The hydrological indicator BF/R was sensitive to land-use changes in the watersheds. The greatest Ko values were associated with native forest and the least values area associated with pasture and rupestrian field.
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spelling Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast BrazilInfluência do uso da terra na hidrologia do solo: uma abordagem na bacia do Alto Rio Grande, sudeste do BrasilLand-use impactsHydrological indicatorsHydropedologyImpactos do uso do soloIndicadores hidrológicosHidropedologiaBrazil is a large country that depends on the hydroelectricity generation hydropower dams. The Upper Grande River Basin (UGRB) is one of the most important Brazilian hydrological regions in terms of water availability and electric energy production. Therefore, studies of water availability are indispensable for a better and more successful decision making in water resources management in the region. This study objective to approach the land-use influence on the soil hydrology in the Upper Grande River Basin, a strategic headwater basin of southeastern Brazil. This study uses hydrological indicators (baseflow/runoff (BF/R) and overland flow/runoff (OF/R)) extracted from eight watersheds, varying the size and localization in the region, to support the results found. Soil saturated hydraulic conductivity (Ko) was determined in situ using a constant flow permeameter, totaling 224 sampled points. Five machine learning algorithms were compared in their performance to predict Ko (Random Forest, Support Vector Machine, Gradient Boosting, Linear Regression, Regularization) using terrain attributes as covariates. The tested methods for predicting Ko resulted in a relatively low coefficient of determination (R2) due to the high spatial variability of this soil hydrologic attribute. The hydrological indicator BF/R was sensitive to land-use changes in the watersheds. The greatest Ko values were associated with native forest and the least values area associated with pasture and rupestrian field.A Bacia do Alto Grande (ARG) é responsável pela drenagem de vários rios no sudeste do Brasil, sendo uma região hidrológica de grande importância para o Sistema Elétrico Brasileiro. Portanto, estudos sobre a disponibilidade de água nesta região são indispensáveis ​​para uma melhor tomada de decisão na gestão dos recursos hídricos. O objetivo deste estudo é abordar a influência do uso da terra nas propriedades hidrológicas do solo na ARG, uma bacia de cabeceira estratégica do sudeste do Brasil. Para apoiar os resultados encontrados, este estudo utiliza indicadores hidrológicos (Fluxo de base/escoamento superficial (FB/ES) e Fluxo superficial/escoamento superficial (FS/ES)) extraídos de oito bacias hidrográficas. A condutividade hidráulica (Ko) foi determinada in situ usando um permeâmetro de fluxo constante, totalizando 224 pontos amostrados. Cinco algoritmos de aprendizado de máquina foram comparados em seu desempenho para prever a Ko (Random Forest, Support Vector Machine, Gradient Boosting, Linear Regression, Regularization) usando atributos de terreno como covariáveis. A validação adicional das relações de uso da terra e propriedades hidrológicas na ARG foi realizada com base em indicadores desenvolvidos com base nas séries pluviométricas e fluviométricas de longo prazo, de oito bacias hidrográficas dentro da ARG. Os métodos testados para prever a Ko resultaram em um R2 relativamente baixo devido à alta variabilidade espacial deste atributo hidrológico do solo. O indicador hidrológico FB/ES foi sensível às mudanças no uso da terra nas bacias hidrográficas. Os maiores valores de Ko estão associados à floresta nativa e os menores valores às áreas de pastagem e campo rupestre.Universidade Federal de Lavras2020-04-17T18:42:20Z2020-04-17T18:42:20Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPINTO, L. C. et al. Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil. Ciência e Agrotecnologia, Lavras, v. 43, 2019.http://repositorio.ufla.br/jspui/handle/1/40164Ciência e Agrotecnologiareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessPinto, Leandro CamposMello, Carlos Rogério deNorton, Lloyd DarrellCuri, Niltoneng2023-05-30T19:36:45Zoai:localhost:1/40164Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-30T19:36:45Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil
Influência do uso da terra na hidrologia do solo: uma abordagem na bacia do Alto Rio Grande, sudeste do Brasil
title Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil
spellingShingle Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil
Pinto, Leandro Campos
Land-use impacts
Hydrological indicators
Hydropedology
Impactos do uso do solo
Indicadores hidrológicos
Hidropedologia
title_short Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil
title_full Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil
title_fullStr Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil
title_full_unstemmed Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil
title_sort Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil
author Pinto, Leandro Campos
author_facet Pinto, Leandro Campos
Mello, Carlos Rogério de
Norton, Lloyd Darrell
Curi, Nilton
author_role author
author2 Mello, Carlos Rogério de
Norton, Lloyd Darrell
Curi, Nilton
author2_role author
author
author
dc.contributor.author.fl_str_mv Pinto, Leandro Campos
Mello, Carlos Rogério de
Norton, Lloyd Darrell
Curi, Nilton
dc.subject.por.fl_str_mv Land-use impacts
Hydrological indicators
Hydropedology
Impactos do uso do solo
Indicadores hidrológicos
Hidropedologia
topic Land-use impacts
Hydrological indicators
Hydropedology
Impactos do uso do solo
Indicadores hidrológicos
Hidropedologia
description Brazil is a large country that depends on the hydroelectricity generation hydropower dams. The Upper Grande River Basin (UGRB) is one of the most important Brazilian hydrological regions in terms of water availability and electric energy production. Therefore, studies of water availability are indispensable for a better and more successful decision making in water resources management in the region. This study objective to approach the land-use influence on the soil hydrology in the Upper Grande River Basin, a strategic headwater basin of southeastern Brazil. This study uses hydrological indicators (baseflow/runoff (BF/R) and overland flow/runoff (OF/R)) extracted from eight watersheds, varying the size and localization in the region, to support the results found. Soil saturated hydraulic conductivity (Ko) was determined in situ using a constant flow permeameter, totaling 224 sampled points. Five machine learning algorithms were compared in their performance to predict Ko (Random Forest, Support Vector Machine, Gradient Boosting, Linear Regression, Regularization) using terrain attributes as covariates. The tested methods for predicting Ko resulted in a relatively low coefficient of determination (R2) due to the high spatial variability of this soil hydrologic attribute. The hydrological indicator BF/R was sensitive to land-use changes in the watersheds. The greatest Ko values were associated with native forest and the least values area associated with pasture and rupestrian field.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020-04-17T18:42:20Z
2020-04-17T18:42:20Z
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 PINTO, L. C. et al. Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil. Ciência e Agrotecnologia, Lavras, v. 43, 2019.
http://repositorio.ufla.br/jspui/handle/1/40164
identifier_str_mv PINTO, L. C. et al. Land-use influence on the soil hydrology: an approach in upper Grande River basin, Southeast Brazil. Ciência e Agrotecnologia, Lavras, v. 43, 2019.
url http://repositorio.ufla.br/jspui/handle/1/40164
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
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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