Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis

Detalhes bibliográficos
Autor(a) principal: Lense,Guilherme Henrique Expedito
Data de Publicação: 2020
Outros Autores: Moreira,Rodrigo Santos, Parreiras,Taya Cristo, Santana,Derielsen Brandão, Bolelli,Talyson de Melo, Mincato,Ronaldo Luiz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ambiente & Água
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2020000400305
Resumo: Abstract Water erosion is the principal degradation process of tropical soils, and its effects can be measured by modeling techniques. Erosion models provide a diagnosis of the soil loss intensity and can support the planning of soil conservation practices. Models with low data requirements, such as the Revised Universal Soil Loss Equation (RUSLE) and, more recently, the Erosion Potential Method (EPM), are mainly applied in Brazil. Thus, the objective of this work was to estimate water erosion soil-loss rates using the EPM and RUSLE models on a tropical subbasin, followed by a comparison of their outcomes. The models’ application considered soil physical parameters, edaphoclimatic conditions of the area, land use, and subbasin management practices. The accuracy of the methods was verified using total transported sediment and water discharge data. We compared the models using Pearson's correlation analyses, considering a 5% of significance. We found a predominance of moderate-intensity erosion with average soil loss of 1.17 and 1.46 Mg ha-1 year-1, measured by EPM and RUSLE, respectively. The EPM model underestimated soil losses by 15.27%, and RUSLE overestimated by 19.08%, indicating a higher percentage of areas with high erosion rates (4.60%). The models presented results with a different order of magnitude, but with significant correlations, indicating that both methods pointed out similar zones of intense and light-erosion rates.
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spelling Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysisRUSLESoil ConservationSoil LossesAbstract Water erosion is the principal degradation process of tropical soils, and its effects can be measured by modeling techniques. Erosion models provide a diagnosis of the soil loss intensity and can support the planning of soil conservation practices. Models with low data requirements, such as the Revised Universal Soil Loss Equation (RUSLE) and, more recently, the Erosion Potential Method (EPM), are mainly applied in Brazil. Thus, the objective of this work was to estimate water erosion soil-loss rates using the EPM and RUSLE models on a tropical subbasin, followed by a comparison of their outcomes. The models’ application considered soil physical parameters, edaphoclimatic conditions of the area, land use, and subbasin management practices. The accuracy of the methods was verified using total transported sediment and water discharge data. We compared the models using Pearson's correlation analyses, considering a 5% of significance. We found a predominance of moderate-intensity erosion with average soil loss of 1.17 and 1.46 Mg ha-1 year-1, measured by EPM and RUSLE, respectively. The EPM model underestimated soil losses by 15.27%, and RUSLE overestimated by 19.08%, indicating a higher percentage of areas with high erosion rates (4.60%). The models presented results with a different order of magnitude, but with significant correlations, indicating that both methods pointed out similar zones of intense and light-erosion rates.Instituto de Pesquisas Ambientais em Bacias Hidrográficas2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2020000400305Revista Ambiente & Água v.15 n.4 2020reponame:Revista Ambiente & Águainstname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)instacron:IPABHI10.4136/ambi-agua.2501info:eu-repo/semantics/openAccessLense,Guilherme Henrique ExpeditoMoreira,Rodrigo SantosParreiras,Taya CristoSantana,Derielsen BrandãoBolelli,Talyson de MeloMincato,Ronaldo Luizeng2020-07-14T00:00:00Zoai:scielo:S1980-993X2020000400305Revistahttp://www.ambi-agua.net/PUBhttps://old.scielo.br/oai/scielo-oai.php||ambi.agua@gmail.com1980-993X1980-993Xopendoar:2020-07-14T00:00Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)false
dc.title.none.fl_str_mv Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis
title Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis
spellingShingle Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis
Lense,Guilherme Henrique Expedito
RUSLE
Soil Conservation
Soil Losses
title_short Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis
title_full Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis
title_fullStr Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis
title_full_unstemmed Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis
title_sort Water erosion modeling by the Erosion Potential Method and the Revised Universal Soil Loss Equation: a comparative analysis
author Lense,Guilherme Henrique Expedito
author_facet Lense,Guilherme Henrique Expedito
Moreira,Rodrigo Santos
Parreiras,Taya Cristo
Santana,Derielsen Brandão
Bolelli,Talyson de Melo
Mincato,Ronaldo Luiz
author_role author
author2 Moreira,Rodrigo Santos
Parreiras,Taya Cristo
Santana,Derielsen Brandão
Bolelli,Talyson de Melo
Mincato,Ronaldo Luiz
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Lense,Guilherme Henrique Expedito
Moreira,Rodrigo Santos
Parreiras,Taya Cristo
Santana,Derielsen Brandão
Bolelli,Talyson de Melo
Mincato,Ronaldo Luiz
dc.subject.por.fl_str_mv RUSLE
Soil Conservation
Soil Losses
topic RUSLE
Soil Conservation
Soil Losses
description Abstract Water erosion is the principal degradation process of tropical soils, and its effects can be measured by modeling techniques. Erosion models provide a diagnosis of the soil loss intensity and can support the planning of soil conservation practices. Models with low data requirements, such as the Revised Universal Soil Loss Equation (RUSLE) and, more recently, the Erosion Potential Method (EPM), are mainly applied in Brazil. Thus, the objective of this work was to estimate water erosion soil-loss rates using the EPM and RUSLE models on a tropical subbasin, followed by a comparison of their outcomes. The models’ application considered soil physical parameters, edaphoclimatic conditions of the area, land use, and subbasin management practices. The accuracy of the methods was verified using total transported sediment and water discharge data. We compared the models using Pearson's correlation analyses, considering a 5% of significance. We found a predominance of moderate-intensity erosion with average soil loss of 1.17 and 1.46 Mg ha-1 year-1, measured by EPM and RUSLE, respectively. The EPM model underestimated soil losses by 15.27%, and RUSLE overestimated by 19.08%, indicating a higher percentage of areas with high erosion rates (4.60%). The models presented results with a different order of magnitude, but with significant correlations, indicating that both methods pointed out similar zones of intense and light-erosion rates.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2020000400305
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.4136/ambi-agua.2501
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Instituto de Pesquisas Ambientais em Bacias Hidrográficas
publisher.none.fl_str_mv Instituto de Pesquisas Ambientais em Bacias Hidrográficas
dc.source.none.fl_str_mv Revista Ambiente & Água v.15 n.4 2020
reponame:Revista Ambiente & Água
instname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
instacron:IPABHI
instname_str Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
instacron_str IPABHI
institution IPABHI
reponame_str Revista Ambiente & Água
collection Revista Ambiente & Água
repository.name.fl_str_mv Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
repository.mail.fl_str_mv ||ambi.agua@gmail.com
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