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Previous issue date: 2013-09-06 / The building of water reservoirs has become a solution for water scarcity of the semiarid regions, however, the land use and occupation near the margins of the reservoirs have been causing serious damage to water quality, harming their use. This paper aims to analyze the land use and occupation in the margins of the Northeast reservoir and evaluate their influence on the water quality, to identify the areas and activities that represent an higher risk of contamination to the reservoir. The study was conducted at the reservoir Dourado, located in the city of Currais Novos - RN, during the period from August 2012 to February 2013. Were defined six areas regarding the land use and occupation, then, Water samples were collected from the margins in these areas for the characterization of water quality. The results showed that almost all Permanent Preservation Areas (PPA) from the reservoir is degraded, increasing the susceptibility of large input of nutrients and contaminants loads. The water reservoir showed low quality, being with strong evidence of eutrophication due to the nutrient accumulation arising from the activities surrounding the reservoir, mainly from agriculture and Livestock. The Areas 1 and 2 are the areas that present a greater risk of reservoir degradation, because are the possible major sources of nutrients (phosphorus total, orthophosphate and nitrate), however, due to the small size of the reservoir, any compound that reaches its margins ultimately affects the water quality of the same / A constru??o de reservat?rios de ?gua se tornou uma solu??o para a escassez de ?gua das regi?es semi?ridas, por?m, a ocupa??o e o uso dos solos pr?ximos ?s margens dos reservat?rios v?m causando s?rios danos a qualidade da ?gua, chegando a prejudicar o seu uso. Este trabalho tem como objetivo analisar o uso e ocupa??o do solo das margens de um reservat?rio nordestino e avaliar a sua influ?ncia sobre a qualidade da ?gua, visando identificar as ?reas e as atividades que representam um maior perigo de contamina??o ao reservat?rio. O trabalho foi realizado no reservat?rio Dourado, localizado no munic?pio de Currais Novos RN, durante per?odo de agosto de 2012 a fevereiro de 2013. Foram delimitadas seis ?reas quanto ao uso e ocupa??o do solo, em seguida, foram coletadas ?guas das margens dessas ?reas para a caracteriza??o da qualidade da ?gua. Os resultados mostraram que quase toda a ?rea de Preserva??o Permanente (APP) do reservat?rio esta degradada, aumentando a susceptibilidade de entrada de grandes cargas de nutrientes e de contaminantes. A ?gua do reservat?rio apresentou baixa qualidade, estando com fortes ind?cios de eutrofiza??o devido ao ac?mulo de nutrientes advindos das atividades realizadas nas margens do reservat?rio, principalmente da agricultura e da cria??o de animais. As ?reas 1 e 2 s?o as ?reas que apresentam um maior risco de degrada??o do reservat?rio, pois s?o as poss?veis maiores fontes de nutrientes (fosforo total, ortofosfato e nitrato), por?m, devido ao pequeno tamanho do reservat?rio, qualquer tipo de composto que chegue em sua margem acaba influenciando na qualidade da ?gua do mesmo
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/16005 |
| Date | 06 September 2013 |
| Creators | Oliveira, Herison Alves de |
| Contributors | CPF:07431937849, http://lattes.cnpq.br/6925820345407676, Cunha, Karina Patr?cia Vieira da, CPF:00757656404, http://lattes.cnpq.br/1431958912117459, Montenegro, Abelardo Ant?nio de Assun??o, CPF:34533516491, http://lattes.cnpq.br/7947714302950574, Mattos, Arthur |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-gradua??o em Engenharia Sanit?ria, UFRN, BR, Saneamento Ambiental; Meio Ambiente; Recursos H?dricos e Hidr?ulica |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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