Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista ciência agronômica (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000100059 |
Resumo: | ABSTRACT The growing pressure on water resources has reduced its availability as regards quality. Data was investigated for two different periods, with the aim of evaluating the influence of the use and occupation of space on the temporal dynamics of the quality of surface and groundwater in the perennialised valley of the Trussu River in the State of Ceará, Brazil. The first period was from September 2002 to February 2004 and the second from April 2013 to April 2014. Twenty-two water samples were taken from nine sampling stations, five on the surface and four underground. The same stations were considered, monitoring 12 attributes of water quality for a total of 2,376 analyses. Temporal dynamics were characterised employing a technique of multivariate statistics: hierarchical cluster analysis (HCA). The three groups formed by the surface water were independent of collection time, indicating that there was no significant change at a level of 1%. The main differences between the periods of monitoring were seen in the groundwater, with a reduction in the values of EC, Na+, Cl- and HCO3-, and an increase in the concentrations of the PO43- and NO3- ions during the second period, forming two distinct groups: group 1 comprising the water collected during the first period, and group 2 the water collected from April 2013 to April 2014. These results reflect changes in the quality of the groundwater due to an increase in agricultural area, and show that the change in land use had a greater impact on the groundwater. |
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Influence of land use/occupation on water quality in the Trussu river valley, Ceará, BrazilWater contaminationMultivariate analysisSemi-arid regionABSTRACT The growing pressure on water resources has reduced its availability as regards quality. Data was investigated for two different periods, with the aim of evaluating the influence of the use and occupation of space on the temporal dynamics of the quality of surface and groundwater in the perennialised valley of the Trussu River in the State of Ceará, Brazil. The first period was from September 2002 to February 2004 and the second from April 2013 to April 2014. Twenty-two water samples were taken from nine sampling stations, five on the surface and four underground. The same stations were considered, monitoring 12 attributes of water quality for a total of 2,376 analyses. Temporal dynamics were characterised employing a technique of multivariate statistics: hierarchical cluster analysis (HCA). The three groups formed by the surface water were independent of collection time, indicating that there was no significant change at a level of 1%. The main differences between the periods of monitoring were seen in the groundwater, with a reduction in the values of EC, Na+, Cl- and HCO3-, and an increase in the concentrations of the PO43- and NO3- ions during the second period, forming two distinct groups: group 1 comprising the water collected during the first period, and group 2 the water collected from April 2013 to April 2014. These results reflect changes in the quality of the groundwater due to an increase in agricultural area, and show that the change in land use had a greater impact on the groundwater.Universidade Federal do Ceará2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000100059Revista Ciência Agronômica v.48 n.1 2017reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFC10.5935/1806-6690.20170007info:eu-repo/semantics/openAccessNeto,José Ribeiro de AraújoAndrade,Eunice Maia dePalácio,Helba Araújo de QueirozSales,Maria Monaliza deMaia,Anthony Rafael Soareseng2016-11-22T00:00:00Zoai:scielo:S1806-66902017000100059Revistahttp://www.ccarevista.ufc.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2016-11-22T00:00Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false |
dc.title.none.fl_str_mv |
Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil |
title |
Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil |
spellingShingle |
Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil Neto,José Ribeiro de Araújo Water contamination Multivariate analysis Semi-arid region |
title_short |
Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil |
title_full |
Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil |
title_fullStr |
Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil |
title_full_unstemmed |
Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil |
title_sort |
Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil |
author |
Neto,José Ribeiro de Araújo |
author_facet |
Neto,José Ribeiro de Araújo Andrade,Eunice Maia de Palácio,Helba Araújo de Queiroz Sales,Maria Monaliza de Maia,Anthony Rafael Soares |
author_role |
author |
author2 |
Andrade,Eunice Maia de Palácio,Helba Araújo de Queiroz Sales,Maria Monaliza de Maia,Anthony Rafael Soares |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Neto,José Ribeiro de Araújo Andrade,Eunice Maia de Palácio,Helba Araújo de Queiroz Sales,Maria Monaliza de Maia,Anthony Rafael Soares |
dc.subject.por.fl_str_mv |
Water contamination Multivariate analysis Semi-arid region |
topic |
Water contamination Multivariate analysis Semi-arid region |
description |
ABSTRACT The growing pressure on water resources has reduced its availability as regards quality. Data was investigated for two different periods, with the aim of evaluating the influence of the use and occupation of space on the temporal dynamics of the quality of surface and groundwater in the perennialised valley of the Trussu River in the State of Ceará, Brazil. The first period was from September 2002 to February 2004 and the second from April 2013 to April 2014. Twenty-two water samples were taken from nine sampling stations, five on the surface and four underground. The same stations were considered, monitoring 12 attributes of water quality for a total of 2,376 analyses. Temporal dynamics were characterised employing a technique of multivariate statistics: hierarchical cluster analysis (HCA). The three groups formed by the surface water were independent of collection time, indicating that there was no significant change at a level of 1%. The main differences between the periods of monitoring were seen in the groundwater, with a reduction in the values of EC, Na+, Cl- and HCO3-, and an increase in the concentrations of the PO43- and NO3- ions during the second period, forming two distinct groups: group 1 comprising the water collected during the first period, and group 2 the water collected from April 2013 to April 2014. These results reflect changes in the quality of the groundwater due to an increase in agricultural area, and show that the change in land use had a greater impact on the groundwater. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000100059 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000100059 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/1806-6690.20170007 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal do Ceará |
publisher.none.fl_str_mv |
Universidade Federal do Ceará |
dc.source.none.fl_str_mv |
Revista Ciência Agronômica v.48 n.1 2017 reponame:Revista ciência agronômica (Online) instname:Universidade Federal do Ceará (UFC) instacron:UFC |
instname_str |
Universidade Federal do Ceará (UFC) |
instacron_str |
UFC |
institution |
UFC |
reponame_str |
Revista ciência agronômica (Online) |
collection |
Revista ciência agronômica (Online) |
repository.name.fl_str_mv |
Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC) |
repository.mail.fl_str_mv |
||alekdutra@ufc.br|| ccarev@ufc.br |
_version_ |
1750297488526409728 |