Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil

Detalhes bibliográficos
Autor(a) principal: Silva,Daniela M.L.
Data de Publicação: 2012
Outros Autores: Camargo,Plínio B., Mcdowell,William H., Vieira,Ivan, Salomão,Marcos S.M.B., Martinelli,Luiz A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anais da Academia Brasileira de Ciências (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400007
Resumo: Streamwater is affected by several processes in the watershed including anthropogenic activities that result in changes in water quality as well as in the functioning of these stream ecosystems. Therefore, this work aims to evaluate the concentration of major ions (Ca2+, Mg2+, Na+, K+, NH4+, NO3-, NO2-, Cl-, SO4(2-), PO4(3-), HCO3-) in streams in the state of São Paulo (southeast Brazil). The sampling sites are located at undisturbed (ombrophilus dense forest, semideciduous forest and savanna - cerrado) and disturbed areas (pasture, urbanization and sugar cane crops). Streamwater chemistry varied according to land use change and, in general, was higher in disturbed sites. Streams located in undisturbed sites at Ribeira de Iguape/Alto Paranapanema watershed (streams 1, 2 and 3) seem to be regulated by soil characteristics, as the disturbed streams located at the same watershed covered by pasture (stream 7) showed high concentration for the most of the variables. Exception to streams located at Pontal do Paranapanema watershed where both disturbed (stream 8) and undisturbed streams (stream 4 and 5) presented similar patterns for almost all variables measured.
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spelling Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazilhydrochemistryland usestreamswatershedsStreamwater is affected by several processes in the watershed including anthropogenic activities that result in changes in water quality as well as in the functioning of these stream ecosystems. Therefore, this work aims to evaluate the concentration of major ions (Ca2+, Mg2+, Na+, K+, NH4+, NO3-, NO2-, Cl-, SO4(2-), PO4(3-), HCO3-) in streams in the state of São Paulo (southeast Brazil). The sampling sites are located at undisturbed (ombrophilus dense forest, semideciduous forest and savanna - cerrado) and disturbed areas (pasture, urbanization and sugar cane crops). Streamwater chemistry varied according to land use change and, in general, was higher in disturbed sites. Streams located in undisturbed sites at Ribeira de Iguape/Alto Paranapanema watershed (streams 1, 2 and 3) seem to be regulated by soil characteristics, as the disturbed streams located at the same watershed covered by pasture (stream 7) showed high concentration for the most of the variables. Exception to streams located at Pontal do Paranapanema watershed where both disturbed (stream 8) and undisturbed streams (stream 4 and 5) presented similar patterns for almost all variables measured.Academia Brasileira de Ciências2012-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400007Anais da Academia Brasileira de Ciências v.84 n.4 2012reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/S0001-37652012000400007info:eu-repo/semantics/openAccessSilva,Daniela M.L.Camargo,Plínio B.Mcdowell,William H.Vieira,IvanSalomão,Marcos S.M.B.Martinelli,Luiz A.eng2012-11-29T00:00:00Zoai:scielo:S0001-37652012000400007Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2012-11-29T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false
dc.title.none.fl_str_mv Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
title Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
spellingShingle Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
Silva,Daniela M.L.
hydrochemistry
land use
streams
watersheds
title_short Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
title_full Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
title_fullStr Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
title_full_unstemmed Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
title_sort Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
author Silva,Daniela M.L.
author_facet Silva,Daniela M.L.
Camargo,Plínio B.
Mcdowell,William H.
Vieira,Ivan
Salomão,Marcos S.M.B.
Martinelli,Luiz A.
author_role author
author2 Camargo,Plínio B.
Mcdowell,William H.
Vieira,Ivan
Salomão,Marcos S.M.B.
Martinelli,Luiz A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Silva,Daniela M.L.
Camargo,Plínio B.
Mcdowell,William H.
Vieira,Ivan
Salomão,Marcos S.M.B.
Martinelli,Luiz A.
dc.subject.por.fl_str_mv hydrochemistry
land use
streams
watersheds
topic hydrochemistry
land use
streams
watersheds
description Streamwater is affected by several processes in the watershed including anthropogenic activities that result in changes in water quality as well as in the functioning of these stream ecosystems. Therefore, this work aims to evaluate the concentration of major ions (Ca2+, Mg2+, Na+, K+, NH4+, NO3-, NO2-, Cl-, SO4(2-), PO4(3-), HCO3-) in streams in the state of São Paulo (southeast Brazil). The sampling sites are located at undisturbed (ombrophilus dense forest, semideciduous forest and savanna - cerrado) and disturbed areas (pasture, urbanization and sugar cane crops). Streamwater chemistry varied according to land use change and, in general, was higher in disturbed sites. Streams located in undisturbed sites at Ribeira de Iguape/Alto Paranapanema watershed (streams 1, 2 and 3) seem to be regulated by soil characteristics, as the disturbed streams located at the same watershed covered by pasture (stream 7) showed high concentration for the most of the variables. Exception to streams located at Pontal do Paranapanema watershed where both disturbed (stream 8) and undisturbed streams (stream 4 and 5) presented similar patterns for almost all variables measured.
publishDate 2012
dc.date.none.fl_str_mv 2012-12-01
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.1590/S0001-37652012000400007
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dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências v.84 n.4 2012
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