Análise da vazão em plantios de eucalipto na Bacia Hidrografica do Riacho Fundo, Felixlândia, Minas Gerais

• Autor(a) principal: Gamba, Otávio Surian
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/3084
• topic: Eucalipto; Hidrologia florestal; Evapotranspiração; Precipitação; Eucalyptus; Forest hydrology; Evapotranspiration; Precipitation; CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL::CONSERVACAO DA NATUREZA

Among all the natural resources limiting the life of human beings, water is perhaps the most important and indispensable. Because of its cycle in the biosphere it is understood that this is an inexhaustible resource. However a fact that makes the water more and more important is that over time this natural resource that is scarce in some places. With this rapid growth is the concern of the impact that this growth can bring to the environment. One way to analyze the potential impacts of these activities on production and water quality is through the experimental watershed. The objective of this study was to analyze the levels of precipitation, interception and evapotranspiration of eucalyptus plantations, as well as analyze the behavior of the relationship between flow, evapotranspiration and effective precipitation in the Basin Creek of Riacho Fundo, based in Felixlândia, Minas Gerais. We used a triangular weir and a set levelogger / barologger to measure the flow. Rainfall was measured using rain gauges made of PVC and a recording rain gauges. The rainfall were close to average for the region, reaching values close to 1200 mm. The interception of the culture of eucalyptus for the period was approximately 12% of the external precipitation. There was no significant relationship between flow and evapotranspiration. There was also no significant relationship between flow and effective precipitation showing the complexity of this relationship, indicating a delay effect of the influence of precipitation in the flow. The average flow for the period of study was 37.8 liters per second, reaching rates of 18.3 liters per second and the dry season and 51.4 liters per second for the rainy season.