Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Trabalho de conclusão de curso |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/37001 |
Resumo: | A substitution of native vegetation for anthropogenic activities in a drainage basin, the result is not a nutrient course for aquatic ecosystems, reducing the water quality of these environments. The semi-arid region of the Brazilian Northeast is not available for the creation and creation of human resources, it is even more susceptible to erosion, which can exacerbate the problem. To identify as variables that can compromise the water quality of sources and of sum of importance for a management of the basins, aiming to generate public policies of protection to the water sources. This work aims to verify how the relationship between the soil use of the drainage basin and water quality variables of 7 reservoirs inserted in the Piranhas-Açu and Apodi-Mossoró river basins without Brazilian semiarid (Rio Grande do Norte - RN). A delimitation of drainage basins, as well as soil occupation applications, is performed using geoprocessing tools such as Taudem and the SCP plugin applied without Quantum Gis software, classifying uses in: dense vegetation, sparse vegetation, exposed soil, urban agriculture and water. The water quality data were obtained together with a state program of monitoring of surface waters and selected variables were total phosphorus, total nitrogen, thermotolerant coliforms, total solids, cyanobacteria and chlorophyll a density. Seven drainage basins were analyzed and Pearson correlation analyzes were performed between reservoir water quality and soil use for the year 2009. Significant negative correlations were found between dense vegetation and total phosphorus (r = -0.96; P = 0.01), and with cyanobacterial density of the reservoirs (r = -0.83 and p = 0.04). Another result to be highlighted was a positive correlation (r = 0.82; p = 0.04) between cyanobacteria density and an agricultural activity in the drainage basin. On the other hand, these results show that the reduction of the native vegetation percentage and the increase in agricultural activity tend to worsen the water quality by increasing the eutrophication process with the occurrence of cyanobacteria blooms. |
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Morais Neto, João Vieira deFabiana Oliveira de Araújo SilvaOliveira, José Neuciano Pinheiro deAraújo, Renata Cristina Medeiros Trajano deAngelini, Ronaldo2017-06-30T13:37:58Z2021-09-20T20:32:13Z2017-06-30T13:37:58Z2021-09-20T20:32:13Z2017-06-202014082923MORAIS NETO, João Vieira de. Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro. 2017. 19f. Trabalho de Conclusão de Curso (Graduação em Engenharia Ambiental). Departamento de Engenharia Civil. Universidade Federal do Rio Grande do Norte, Natal, 2017.https://repositorio.ufrn.br/handle/123456789/37001A substitution of native vegetation for anthropogenic activities in a drainage basin, the result is not a nutrient course for aquatic ecosystems, reducing the water quality of these environments. The semi-arid region of the Brazilian Northeast is not available for the creation and creation of human resources, it is even more susceptible to erosion, which can exacerbate the problem. To identify as variables that can compromise the water quality of sources and of sum of importance for a management of the basins, aiming to generate public policies of protection to the water sources. This work aims to verify how the relationship between the soil use of the drainage basin and water quality variables of 7 reservoirs inserted in the Piranhas-Açu and Apodi-Mossoró river basins without Brazilian semiarid (Rio Grande do Norte - RN). A delimitation of drainage basins, as well as soil occupation applications, is performed using geoprocessing tools such as Taudem and the SCP plugin applied without Quantum Gis software, classifying uses in: dense vegetation, sparse vegetation, exposed soil, urban agriculture and water. The water quality data were obtained together with a state program of monitoring of surface waters and selected variables were total phosphorus, total nitrogen, thermotolerant coliforms, total solids, cyanobacteria and chlorophyll a density. Seven drainage basins were analyzed and Pearson correlation analyzes were performed between reservoir water quality and soil use for the year 2009. Significant negative correlations were found between dense vegetation and total phosphorus (r = -0.96; P = 0.01), and with cyanobacterial density of the reservoirs (r = -0.83 and p = 0.04). Another result to be highlighted was a positive correlation (r = 0.82; p = 0.04) between cyanobacteria density and an agricultural activity in the drainage basin. On the other hand, these results show that the reduction of the native vegetation percentage and the increase in agricultural activity tend to worsen the water quality by increasing the eutrophication process with the occurrence of cyanobacteria blooms.A substituição da vegetação nativa por atividades antrópicas em uma bacia de drenagem, geralmente resulta no carreamento de nutrientes aos ecossistemas aquáticos, reduzindo a qualidade da água destes ambientes. A região semiárida do Nordeste brasileiro não atende a esta regra e por possuir solos jovens, é ainda mais susceptível a erosão, o que pode agravar o problema. Identificar as variáveis que podem comprometer a qualidade da água de mananciais é de suma importância para a gestão das bacias, visando gerar políticas públicas de proteção aos mananciais hídricos. Este trabalho tem o objetivo de verificar as relações entre o uso do solo da bacia de drenagem e as variáveis de qualidade da água de 7 reservatórios inseridos nas bacias dos rios Piranhas-Açu e Apodi-Mossoró no semiárido brasileiro (Rio Grande do Norte – RN). A delimitação das bacias de drenagem, bem como as análises de uso e ocupação do solo foram realizadas através de ferramentas de geoprocessamento como Taudem e o plugin SCP aplicados no software Quantum Gis, classificando os usos em: vegetação densa, vegetação esparsa, solo exposto, urbano, agricultura e água. Os dados de qualidade da água foram obtidos junto a um programa estadual de monitoramento de águas superficiais e as variáveis selecionadas foram: fósforo total, nitrogênio total, coliformes termotolerantes, sólidos totais, densidade de cianobactérias e clorofila-a. Foram analisadas sete bacias de drenagem e realizadas análises de correlação de Pearson entre a qualidade da água do reservatório e o uso do solo para o ano de 2009. Foram encontradas altas correlações negativas significativas entre vegetação densa e fósforo total (r=-0,96; p=0,01), e com densidade de cianobactéria dos reservatórios (r=-0,83 e p=0,04). Outro resultado a se destacar foi a correlação positiva (r=0,82; p=0,04) entre densidade de cianobactéria e a atividade de agricultura na bacia de drenagem. Portanto, esses resultados evidenciam que a redução da porcentagem da vegetação nativa e o aumento da atividade agrícola tendem a piorar a qualidade da água pelo aumento do processo de eutrofização com ocorrência de florações de cianobactérias.Universidade Federal do Rio Grande do NorteUFRNBrasilEngenharia AmbientalUso do solo; Geoprocessamento; Bacia hidrográficaLand use; Watershed; Geoprocessing.Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiroinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccessporreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNTEXTTCC_Joaovieira.pdf.txtExtracted texttext/plain32886https://repositorio.ufrn.br/bitstream/123456789/37001/1/TCC_Joaovieira.pdf.txt00c9285f5069237280f5ed0aeaebc2e2MD51ORIGINALTCC_Joaovieira.pdftrabalho de conclusao de cursoapplication/pdf1047482https://repositorio.ufrn.br/bitstream/123456789/37001/2/TCC_Joaovieira.pdfc2e13b001f3c55704898708edf910136MD52LICENSElicense.txttext/plain756https://repositorio.ufrn.br/bitstream/123456789/37001/3/license.txta80a9cda2756d355b388cc443c3d8a43MD53123456789/370012021-09-20 17:32:13.369oai:https://repositorio.ufrn.br:123456789/37001PGNlbnRlcj48c3Ryb25nPlVOSVZFUlNJREFERSBGRURFUkFMIERPIFJJTyBHUkFOREUgRE8gTk9SVEU8L3N0cm9uZz48L2NlbnRlcj4KPGNlbnRlcj48c3Ryb25nPkJJQkxJT1RFQ0EgRElHSVRBTCBERSBNT05PR1JBRklBUzwvc3Ryb25nPjwvY2VudGVyPgoKPGNlbnRlcj5UZXJtbyBkZSBBdXRvcml6YcOnw6NvIHBhcmEgZGlzcG9uaWJpbGl6YcOnw6NvIGRlIE1vbm9ncmFmaWFzIGRlIEdyYWR1YcOnw6NvIGUgRXNwZWNpYWxpemHDp8OjbyBuYSBCaWJsaW90ZWNhIERpZ2l0YWwgZGUgTW9ub2dyYWZpYXMgKEJETSk8L2NlbnRlcj4KCk5hIHF1YWxpZGFkZSBkZSB0aXR1bGFyIGRvcyBkaXJlaXRvcyBkZSBhdXRvciBkYSBtb25vZ3JhZmlhLCBhdXRvcml6byBhIFVuaXZlcnNpZGFkZSBGZWRlcmFsIGRvIFJpbyBHcmFuZGUgZG8gTm9ydGUgKFVGUk4pIGEgZGlzcG9uaWJpbGl6YXIgYXRyYXbDqXMgZGEgQmlibGlvdGVjYSBEaWdpdGFsIGRlIE1vbm9ncmFmaWFzIGRhIFVGUk4sIHNlbSByZXNzYXJjaW1lbnRvIGRvcyBkaXJlaXRvcyBhdXRvcmFpcywgZGUgYWNvcmRvIGNvbSBhIExlaSBuwrAgOTYxMC85OCwgbyB0ZXh0byBpbnRlZ3JhbCBkYSBvYnJhIHN1Ym1ldGlkYSBwYXJhIGZpbnMgZGUgbGVpdHVyYSwgaW1wcmVzc8OjbyBlL291IGRvd25sb2FkLCBhIHTDrXR1bG8gZGUgZGl2dWxnYcOnw6NvIGRhIHByb2R1w6fDo28gY2llbnTDrWZpY2EgYnJhc2lsZWlyYSwgYSBwYXJ0aXIgZGEgZGF0YSBkZXN0YSBzdWJtaXNzw6NvLiAKRepositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-09-20T20:32:13Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pr_BR.fl_str_mv |
Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro |
title |
Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro |
spellingShingle |
Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro Morais Neto, João Vieira de Uso do solo; Geoprocessamento; Bacia hidrográfica Land use; Watershed; Geoprocessing. |
title_short |
Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro |
title_full |
Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro |
title_fullStr |
Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro |
title_full_unstemmed |
Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro |
title_sort |
Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro |
author |
Morais Neto, João Vieira de |
author_facet |
Morais Neto, João Vieira de |
author_role |
author |
dc.contributor.referees1.none.fl_str_mv |
Oliveira, José Neuciano Pinheiro de |
dc.contributor.referees2.none.fl_str_mv |
Araújo, Renata Cristina Medeiros Trajano de |
dc.contributor.author.fl_str_mv |
Morais Neto, João Vieira de |
dc.contributor.advisor-co1.fl_str_mv |
Fabiana Oliveira de Araújo Silva |
dc.contributor.advisor1.fl_str_mv |
Angelini, Ronaldo |
contributor_str_mv |
Fabiana Oliveira de Araújo Silva Angelini, Ronaldo |
dc.subject.pr_BR.fl_str_mv |
Uso do solo; Geoprocessamento; Bacia hidrográfica Land use; Watershed; Geoprocessing. |
topic |
Uso do solo; Geoprocessamento; Bacia hidrográfica Land use; Watershed; Geoprocessing. |
description |
A substitution of native vegetation for anthropogenic activities in a drainage basin, the result is not a nutrient course for aquatic ecosystems, reducing the water quality of these environments. The semi-arid region of the Brazilian Northeast is not available for the creation and creation of human resources, it is even more susceptible to erosion, which can exacerbate the problem. To identify as variables that can compromise the water quality of sources and of sum of importance for a management of the basins, aiming to generate public policies of protection to the water sources. This work aims to verify how the relationship between the soil use of the drainage basin and water quality variables of 7 reservoirs inserted in the Piranhas-Açu and Apodi-Mossoró river basins without Brazilian semiarid (Rio Grande do Norte - RN). A delimitation of drainage basins, as well as soil occupation applications, is performed using geoprocessing tools such as Taudem and the SCP plugin applied without Quantum Gis software, classifying uses in: dense vegetation, sparse vegetation, exposed soil, urban agriculture and water. The water quality data were obtained together with a state program of monitoring of surface waters and selected variables were total phosphorus, total nitrogen, thermotolerant coliforms, total solids, cyanobacteria and chlorophyll a density. Seven drainage basins were analyzed and Pearson correlation analyzes were performed between reservoir water quality and soil use for the year 2009. Significant negative correlations were found between dense vegetation and total phosphorus (r = -0.96; P = 0.01), and with cyanobacterial density of the reservoirs (r = -0.83 and p = 0.04). Another result to be highlighted was a positive correlation (r = 0.82; p = 0.04) between cyanobacteria density and an agricultural activity in the drainage basin. On the other hand, these results show that the reduction of the native vegetation percentage and the increase in agricultural activity tend to worsen the water quality by increasing the eutrophication process with the occurrence of cyanobacteria blooms. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-06-30T13:37:58Z 2021-09-20T20:32:13Z |
dc.date.available.fl_str_mv |
2017-06-30T13:37:58Z 2021-09-20T20:32:13Z |
dc.date.issued.fl_str_mv |
2017-06-20 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/bachelorThesis |
format |
bachelorThesis |
status_str |
publishedVersion |
dc.identifier.pr_BR.fl_str_mv |
2014082923 |
dc.identifier.citation.fl_str_mv |
MORAIS NETO, João Vieira de. Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro. 2017. 19f. Trabalho de Conclusão de Curso (Graduação em Engenharia Ambiental). Departamento de Engenharia Civil. Universidade Federal do Rio Grande do Norte, Natal, 2017. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/37001 |
identifier_str_mv |
2014082923 MORAIS NETO, João Vieira de. Efeito do uso do solo na qualidade da água de reservatórios do semiárido brasileiro. 2017. 19f. Trabalho de Conclusão de Curso (Graduação em Engenharia Ambiental). Departamento de Engenharia Civil. Universidade Federal do Rio Grande do Norte, Natal, 2017. |
url |
https://repositorio.ufrn.br/handle/123456789/37001 |
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Universidade Federal do Rio Grande do Norte |
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Brasil |
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Universidade Federal do Rio Grande do Norte |
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