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Título: Rain and groundwater as phosphorus sources of a small reservoir
Autor(es): Sebastiao Atila Fonseca Miranda
Bohdan Matvienko
Assunto: Botucatu aquifer
Broa reservoir
groundwater flow
ISSN: 1440-1770
Revista: Lakes & Reservoirs ( Online)
Volume: 8
Resumo: At Broa hydroelectric reservoir 82% of phosphorus (P) input is from rivers, 12% from groundwater seepage input and 6% from direct rainfall. The reservoir retains 15% of incoming P, corresponding to 73 mg/m2/year sedimentation. Proportions of water input are 36% from groundwater seepage in the dry season and 68% from seepage and 3% from direct rainfall in the rainy season; the remainder comes from rivers. Average P concentration during the 1996 rainy season was 27 mug/L in rain, 6.1 in groundwater, 68.54 in rivers and 33.56 in outflow.
ISSN: 1440-1770
Aparece nas coleções:Coordenação de Dinâmica Ambiental (CDAM)

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