DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Engenharia na Agricultura |
Texto Completo: | https://periodicos.ufv.br/reveng/article/view/88 |
Resumo: | To assess the calculated trophic state of the watercourse, the trophic state index (TSI) of the River Pomba, Minas Gerais, was determined during dry and rainy period. The water samples were collected from nine different points of the river. The TSI values were calculated by replacing the variable by the total phosphorus in the equation proposed by CARLSON (1977) and modified by TOLEDO Jr. (1990). The maximum concentration of P was found in sectors where the River Pomba received domestic and industrial effluents, and phosphate fertilizers used in agricultural areas. The data revealed that during the dry period, the River Pomba was partially eutrophic, while in the rainy season, the entire evaluated route was characterized as eutrophic, with a TSI varying predominantly between 54 and 74. The results indicated that the surface washing of anthropic surface areas was higher during rainy season, which most contributed to the phosphorus load in the river, thus increasing its concentration even with increased flow of the watercourse. |
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Engenharia na Agricultura |
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DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBADETERMINAÇÃO DO ÍNDICE DE ESTADO TRÓFICO PARA FÓSFORO EM PONTOS DO RIO POMBAeutrofizaçãoíndice de estado tróficoqualidade da água.To assess the calculated trophic state of the watercourse, the trophic state index (TSI) of the River Pomba, Minas Gerais, was determined during dry and rainy period. The water samples were collected from nine different points of the river. The TSI values were calculated by replacing the variable by the total phosphorus in the equation proposed by CARLSON (1977) and modified by TOLEDO Jr. (1990). The maximum concentration of P was found in sectors where the River Pomba received domestic and industrial effluents, and phosphate fertilizers used in agricultural areas. The data revealed that during the dry period, the River Pomba was partially eutrophic, while in the rainy season, the entire evaluated route was characterized as eutrophic, with a TSI varying predominantly between 54 and 74. The results indicated that the surface washing of anthropic surface areas was higher during rainy season, which most contributed to the phosphorus load in the river, thus increasing its concentration even with increased flow of the watercourse.Para avaliação do grau de trofia do curso de água calculado o índice de estado trófico para fósforo (IETpt) em nove diferentes pontos do Rio Pomba, Estado de Minas Gerais, durante os períodos de estiagem e de chuva. Os valores do IETpt foram obtidos por meio da equação proposta por CARLSON (1977) modificada por TOLEDO Jr. (1990). O maior aporte de fósforo total no curso de água foi verificado nos trechos em que o Rio Pomba é receptor de grande carga de efluentes domésticos e industriais e de fertilizantes fosfatados utilizados em áreas de cultivo agrícola. De acordo com o resultados, observou-se que, no período de estiagem, o Rio Pomba encontrava-se parcialmente eutrofizado, enquanto no período chuvoso, todo o percurso avaliado apresentou estado eutrófico, com a faixa de variação do IETpt predominando entre 54 e 74. Os resultados indicaram que o processo de lavagem superficial em áreas antropizadas que foi maior no período chuvoso, proporcionou maior carga de fósforo ao rio, aumentando sua concentração, mesmo com incrementos na vazão do curso de água.Universidade Federal de Viçosa - UFV2010-07-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/mswordhttps://periodicos.ufv.br/reveng/article/view/8810.13083/reveng.v18i4.98Engineering in Agriculture; Vol. 18 No. 4 (2010); 322-329Revista Engenharia na Agricultura - REVENG; v. 18 n. 4 (2010); 322-3292175-68131414-398410.13083/reveng.v18i4reponame:Engenharia na Agriculturainstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/reveng/article/view/88/75https://periodicos.ufv.br/reveng/article/view/88/3792Farage, José de Alencar PintoMatos, Antonio Teixeira deSilva, Demetrius David daBorges, Alisson Carraroinfo:eu-repo/semantics/openAccess2023-01-19T12:49:52Zoai:ojs.periodicos.ufv.br:article/88Revistahttps://periodicos.ufv.br/revengPUBhttps://periodicos.ufv.br/reveng/oairevistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br2175-68131414-3984opendoar:2023-01-19T12:49:52Engenharia na Agricultura - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA DETERMINAÇÃO DO ÍNDICE DE ESTADO TRÓFICO PARA FÓSFORO EM PONTOS DO RIO POMBA |
title |
DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA |
spellingShingle |
DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA Farage, José de Alencar Pinto eutrofização índice de estado trófico qualidade da água. |
title_short |
DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA |
title_full |
DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA |
title_fullStr |
DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA |
title_full_unstemmed |
DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA |
title_sort |
DETERMINATION OF TROPHIC STATE INDEX FOR PHOSPHORUS AT DIFFERENT POINTS OF THE RIVER POMBA |
author |
Farage, José de Alencar Pinto |
author_facet |
Farage, José de Alencar Pinto Matos, Antonio Teixeira de Silva, Demetrius David da Borges, Alisson Carraro |
author_role |
author |
author2 |
Matos, Antonio Teixeira de Silva, Demetrius David da Borges, Alisson Carraro |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Farage, José de Alencar Pinto Matos, Antonio Teixeira de Silva, Demetrius David da Borges, Alisson Carraro |
dc.subject.por.fl_str_mv |
eutrofização índice de estado trófico qualidade da água. |
topic |
eutrofização índice de estado trófico qualidade da água. |
description |
To assess the calculated trophic state of the watercourse, the trophic state index (TSI) of the River Pomba, Minas Gerais, was determined during dry and rainy period. The water samples were collected from nine different points of the river. The TSI values were calculated by replacing the variable by the total phosphorus in the equation proposed by CARLSON (1977) and modified by TOLEDO Jr. (1990). The maximum concentration of P was found in sectors where the River Pomba received domestic and industrial effluents, and phosphate fertilizers used in agricultural areas. The data revealed that during the dry period, the River Pomba was partially eutrophic, while in the rainy season, the entire evaluated route was characterized as eutrophic, with a TSI varying predominantly between 54 and 74. The results indicated that the surface washing of anthropic surface areas was higher during rainy season, which most contributed to the phosphorus load in the river, thus increasing its concentration even with increased flow of the watercourse. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-07-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufv.br/reveng/article/view/88 10.13083/reveng.v18i4.98 |
url |
https://periodicos.ufv.br/reveng/article/view/88 |
identifier_str_mv |
10.13083/reveng.v18i4.98 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufv.br/reveng/article/view/88/75 https://periodicos.ufv.br/reveng/article/view/88/3792 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/msword |
dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
dc.source.none.fl_str_mv |
Engineering in Agriculture; Vol. 18 No. 4 (2010); 322-329 Revista Engenharia na Agricultura - REVENG; v. 18 n. 4 (2010); 322-329 2175-6813 1414-3984 10.13083/reveng.v18i4 reponame:Engenharia na Agricultura instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
Engenharia na Agricultura |
collection |
Engenharia na Agricultura |
repository.name.fl_str_mv |
Engenharia na Agricultura - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
revistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br |
_version_ |
1800211144105787392 |