Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais
Measurement and evaluation of soil erosion and consequent sediment yield are fundamental in the planning and management of watersheds, as they allow the identification of critical areas susceptible to erosive processes. This study analyzed the sediment yield generated by water erosion in the Indaia...
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Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
2021-06-01
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doaj-97e41676e1f74436a270adf829b3ffae2021-07-17T00:17:59ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2021-06-0116311810.4136/ambi-agua.2694Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas GeraisKauem Simões0https://orcid.org/0000-0002-3779-9042Rita de Cássia Cerqueira Condé1https://orcid.org/0000-0002-5038-7130Henrique Llacer Roig2https://orcid.org/0000-0002-9180-3081Rejane Ennes Cicerelli3https://orcid.org/0000-0002-8199-5163Instituto de Geociências. Programa de Pós-Graduação em Geociências Aplicadas e Geodinâmica. Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, CEP: 70910-900, Brasília, DF, Brazil. Companhia de Desenvolvimento dos Vales do São Francisco e Parnaíba (CODEVASF/DF), SGAN 601, Módulo I, Edifício Deputado Manoel Novaes, CEP: 70830-019, Brasília, DF, Brazil. Instituto de Geociências. Programa de Pós-Graduação em Geociências Aplicadas e Geodinâmica. Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, CEP: 70910-900, Brasília, DF, Brazil. Agência Nacional de Águas e Saneamento Básico (ANA), Setor Policial, área 5, Quadra 3, s/n, CEP: 70610-200, Brasília, DF, Brazil. Instituto de Geociências. Programa de Pós-Graduação em Geociências Aplicadas e Geodinâmica. Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, CEP: 70910-900, Brasília, DF, Brazil. Instituto de Geociências. Programa de Pós-Graduação em Geociências Aplicadas e Geodinâmica. Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, CEP: 70910-900, Brasília, DF, Brazil. Measurement and evaluation of soil erosion and consequent sediment yield are fundamental in the planning and management of watersheds, as they allow the identification of critical areas susceptible to erosive processes. This study analyzed the sediment yield generated by water erosion in the Indaia River Basin, Alto São Francisco, Minas Gerais, by using the SWAT hydrological model. From a regional/local scale, the initial simulation of the variables (flow and solid discharge) was performed on a monthly scale from 1988 to 2017. Then, parameter-sensitivity analysis, calibration, and validation of the model were executed. In the monthly calibration (1988 to 2007), the performance of the simulations for flow was R2=0.92 and NSE=0.91 and for total solid discharge R2=0.51 and NSE=0.50. In the monthly validation (2008 to 2017) for flow, R2=0.85 and NSE=0.82 was obtained and for total solid discharge R2=0.19 and NSE=0.16. Despite the unsatisfactory result in the validation stage, the model was able to analyze the distribution of sediment production by sub-basins or even by the Hydrologic Response Unit (HRU). Therefore, a sediment-yield map was generated which qualitatively indicated a tendency for greater erosive processes in the central portion of the basin. The results will support public policies mitigating environmental degradation of the Indaia River Basin.https://www.scielo.br/j/ambiagua/a/vFjcjdfJdXtksSXb3xCR3ss/?lang=encalibration and validation of modelssediment yieldsensitivity analysiswater erosion |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kauem Simões Rita de Cássia Cerqueira Condé Henrique Llacer Roig Rejane Ennes Cicerelli |
spellingShingle |
Kauem Simões Rita de Cássia Cerqueira Condé Henrique Llacer Roig Rejane Ennes Cicerelli Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais Revista Ambiente & Água calibration and validation of models sediment yield sensitivity analysis water erosion |
author_facet |
Kauem Simões Rita de Cássia Cerqueira Condé Henrique Llacer Roig Rejane Ennes Cicerelli |
author_sort |
Kauem Simões |
title |
Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais |
title_short |
Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais |
title_full |
Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais |
title_fullStr |
Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais |
title_full_unstemmed |
Application of the SWAT hydrological model in flow and solid discharge simulation as a management tool of the Indaia River Basin, Alto São Francisco, Minas Gerais |
title_sort |
application of the swat hydrological model in flow and solid discharge simulation as a management tool of the indaia river basin, alto são francisco, minas gerais |
publisher |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) |
series |
Revista Ambiente & Água |
issn |
1980-993X |
publishDate |
2021-06-01 |
description |
Measurement and evaluation of soil erosion and consequent sediment yield are fundamental in the planning and management of watersheds, as they allow the identification of critical areas susceptible to erosive processes. This study analyzed the sediment yield generated by water erosion in the Indaia River Basin, Alto São Francisco, Minas Gerais, by using the SWAT hydrological model. From a regional/local scale, the initial simulation of the variables (flow and solid discharge) was performed on a monthly scale from 1988 to 2017. Then, parameter-sensitivity analysis, calibration, and validation of the model were executed. In the monthly calibration (1988 to 2007), the performance of the simulations for flow was R2=0.92 and NSE=0.91 and for total solid discharge R2=0.51 and NSE=0.50. In the monthly validation (2008 to 2017) for flow, R2=0.85 and NSE=0.82 was obtained and for total solid discharge R2=0.19 and NSE=0.16. Despite the unsatisfactory result in the validation stage, the model was able to analyze the distribution of sediment production by sub-basins or even by the Hydrologic Response Unit (HRU). Therefore, a sediment-yield map was generated which qualitatively indicated a tendency for greater erosive processes in the central portion of the basin. The results will support public policies mitigating environmental degradation of the Indaia River Basin. |
topic |
calibration and validation of models sediment yield sensitivity analysis water erosion |
url |
https://www.scielo.br/j/ambiagua/a/vFjcjdfJdXtksSXb3xCR3ss/?lang=en |
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