Monitoramento hidrológico da bacia hidrográfica do córrego Águida, Francisco Dumont, MG

• Autor(a) principal: Maffia, Vanessa Pataro
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/3060
• topic: Eucalipto; Hidrologia florestal; Manejo de bacia; Eucalyptus; Forest hydrology; Watershed management; CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::CONSERVACAO DA NATUREZA

The economic importance of eucalyptus reforestation is unquestionable for the country, several products are provided, but the eucalyptus plantations has lead to debates about the possible damage to the environment, especially those related to water consumption and depletion of soil nutrients. This study aimed to monitor the quality and quantity of water from watershed reforestation with eucalyptus, district of Francisco Dumont, State of Minas Gerais. The study watershed is located into Serra do Cabral, which holds important natural resources with vast fields framed by rocky hills, trails, forests, savannahs, and numerous waterfalls. This work aimed to obtain the morphometric parameters for the watershed drainage area, perimeter, shape factor, compactness coefficient among others and monitor the flow and rainfall since the beginning of the area plantations. For hydrological monitoring, rain gauges were installed into watershed and flow measurements were carried out monthly since September 2007. At 2009 started the monitoring of water quality, parameters such as pH, turbidity, conductivity and dissolved oxygen were measured monthly. In the second stage tests were conducted of water infiltration, moisture and mechanical strength of the soil in different land uses in the study area. Regarding morphology, the basin has elongated shape, with low drainage density and slope of 3.38%. It was noted that the plantings are not influencing the flow of rivers, while there were a decrease in rainfall in recent years in the region. The silvicultural activities practiced in the stands not damaged or impacted the ground. The water consumed by the population does not fit in Class 1, according to CONAMA no 357/2005.