AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN

Detalhes bibliográficos
Autor(a) principal: Silva, Valtercides Cavalcante da
Data de Publicação: 2007
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/2395
Resumo: Although the Universal Soil Loss Equation (USLE) is widely used all over the world in the prediction of soil loss, a few factors of the equation are difficult to obtain, such as the slope length factor (L factor), particularly in watersheds. For this reason, the purpose of the present research was to apply the methodology for automatic calculation of the topographic factor (LS factor) using the algorithm developed by Desmet and Govers (1996) which defines the slope length factor (L factor) through the Geographic Information System (GIS). It was verified that the slope length factor (L), as developed by Desmet and Govers (1996), which accounts for accumulated flow, showed feasible results. KEY-WORDS: USLE; L factor; topographic factor; GIS.
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spelling AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASINCÁLCULO AUTOMÁTICO DO FATOR TOPOGRÁFICO (LS) DA EUPS, NA BACIA DO RIO PARACATUUSLEL factortopographic factorGIS Although the Universal Soil Loss Equation (USLE) is widely used all over the world in the prediction of soil loss, a few factors of the equation are difficult to obtain, such as the slope length factor (L factor), particularly in watersheds. For this reason, the purpose of the present research was to apply the methodology for automatic calculation of the topographic factor (LS factor) using the algorithm developed by Desmet and Govers (1996) which defines the slope length factor (L factor) through the Geographic Information System (GIS). It was verified that the slope length factor (L), as developed by Desmet and Govers (1996), which accounts for accumulated flow, showed feasible results. KEY-WORDS: USLE; L factor; topographic factor; GIS. Embora a equação universal de perda de solo (EUPS) seja amplamente utilizada na predição de perda de solo, é difícil obter certos fatores dessa equação em bacias hidrográficas, como é o caso do fator de comprimento de vertente (fator L). Diante disso, este trabalho objetivou determinar de maneira informatizada (automática), o fator topográfico (LS) da EUPS, utilizando para o cálculo do fator L o algoritmo de Desmet & Govers (1996), com o suporte de um Sistema de Informações Geográficas (SIG). Verificou-se a viabilidade do cálculo do fator de comprimento de vertente, na escala de 1:100.000, por meio da metodologia desses autores, que considera o fluxo acumulado.Escola de Agronomia - Universidade Federal de Goiás2007-11-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimentalapplication/savehttps://revistas.ufg.br/pat/article/view/2395Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 33, n. 1, Jan./Jun. 2003; 29-34Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 33, n. 1, jan./jun. 2003; 29-34Pesquisa Agropecuária Tropical; v. 33, n. 1, jan./jun. 2003; 29-341983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/2395/2365Silva, Valtercides Cavalcante dainfo:eu-repo/semantics/openAccess2020-02-26T23:57:33Zoai:ojs.revistas.ufg.br:article/2395Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:07.521820Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN
CÁLCULO AUTOMÁTICO DO FATOR TOPOGRÁFICO (LS) DA EUPS, NA BACIA DO RIO PARACATU
title AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN
spellingShingle AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN
Silva, Valtercides Cavalcante da
USLE
L factor
topographic factor
GIS
title_short AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN
title_full AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN
title_fullStr AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN
title_full_unstemmed AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN
title_sort AUTOMATIC CALCULATION OF THE TOPOGRAPHIC FACTOR (LS) OF THE USLE, IN THE PARACATU RIVER BASIN
author Silva, Valtercides Cavalcante da
author_facet Silva, Valtercides Cavalcante da
author_role author
dc.contributor.author.fl_str_mv Silva, Valtercides Cavalcante da
dc.subject.por.fl_str_mv USLE
L factor
topographic factor
GIS
topic USLE
L factor
topographic factor
GIS
description Although the Universal Soil Loss Equation (USLE) is widely used all over the world in the prediction of soil loss, a few factors of the equation are difficult to obtain, such as the slope length factor (L factor), particularly in watersheds. For this reason, the purpose of the present research was to apply the methodology for automatic calculation of the topographic factor (LS factor) using the algorithm developed by Desmet and Govers (1996) which defines the slope length factor (L factor) through the Geographic Information System (GIS). It was verified that the slope length factor (L), as developed by Desmet and Govers (1996), which accounts for accumulated flow, showed feasible results. KEY-WORDS: USLE; L factor; topographic factor; GIS.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-16
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/2395
url https://revistas.ufg.br/pat/article/view/2395
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/2395/2365
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/save
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 33, n. 1, Jan./Jun. 2003; 29-34
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 33, n. 1, jan./jun. 2003; 29-34
Pesquisa Agropecuária Tropical; v. 33, n. 1, jan./jun. 2003; 29-34
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874814468423680

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