DEGEO - Departamento de Geologia

URI permanente desta comunidadehttp://www.hml.repositorio.ufop.br/handle/123456789/8

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2012 - 20182

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Tem arquivos: SimAssunto: search.filters.subject.Aquifer recharge

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Agora exibindo 1 - 2 de 2
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    Estimating groundwater recharge using GIS-based distributed water balance model in an environmental protection area in the city of Sete Lagoas (MG), Brazil.
    (2018) Galvão, Paulo Henrique Ferreira; Ricardo, Hirata; Conicelli, Bruno Pirilo
    Improvement in modern water resource management has become increasingly reliant on better characterizing of the spatial variability of groundwater recharge mechanisms. Due to the flexibility and reliability of GIS-based index models, they have become an alternative for mapping and interpreting recharge systems. For this reason, an index model by integrating water balance parameters (surface runoff, actual evapotranspiration, and percolation) calculated by Thornthwaite and Mather’s method, with maps of soil texture, land cover, and terrain slope, was developed for a sustainable use of the groundwater resources. The Serra de Santa Helena Environmental Protection Area, next to the urbanized area of Sete Lagoas (MG), Brazil, was selected as the study area. Rapid economic growth has led to the subsequent expansion of the nearby urban area. Large variability in soil type, land use, and slope in this region resulted in spatially complex relationships between recharge areas. Due to these conditions, the study area was divided into four zones, according to the amount of recharge: high (> 100 mm/ year), moderate (50–100 mm/year), low (25–50 mm/year), and incipient (> 25 mm/year). The technique proved to be a viable method to estimate the spatial variability of recharge, especially in areas with little to no in situ data. The success of the tool indicates it can be used for a variety of groundwater resource management applications.
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    Hydrographic and hydrogeological Basin of Entre-Ribeiros : probable recharge zone delimitation and environmental impact assessment.
    (2012) Vasconcelos, Vitor Vieira; Martins Júnior, Paulo Pereira; Hadad, Renato Moreira
    Apresenta-se uma proposta de delimitação das prováveis zonas de recarga da Bacia Hidrográfica de Entre-Ribeiros (Noroeste de Minas Gerais/Brasil). A delimitação teve como subsídio estudos de litoestratigrafia, geomorfologia, unidades geoambientais e hidrogeologia. A partir da delimitação proposta, e conjugando-se à análise da ocupação do solo entre o período de 1975 a 2008, procura-se identificar as tendências de ocupação das zonas prováveis de recarga. Por fim, tecem-se comentários sobre os impactos ambientais decorrentes da ocupação dessas áreas.