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- Title
Influence of the Pandeiros Small Hydroelectric Plant reservoir on the concentration and composition of solids transported by the Pandeiros River, Brazil.
- Authors
de Oliveira, Jonas Faria Dionísio; Coelho, Gilberto; Carvalho, Ronan Naves
- Abstract
Dams and artificial reservoirs can significantly alter the dynamics of sediment transport in a watercourse. Therefore, the main objective of this study is to assess the influence of the Pandeiros Small Hydroelectric Plant reservoir on sediment transport in the Pandeiros River. The study also aims to characterize the sediment composition and assess the correlation between total and suspended solids with turbidity, flow, and precipitation variables. The study was carried out in the Pandeiros River basin, Brazil, between May 2019 and January 2023. The following variables were analyzed: flow, turbidity, precipitation, total solids (fixed and volatile), and suspended solids (fixed and volatile). The results showed that, under the conditions observed during the study, the reservoir did not affect the concentration and composition of the sediments. It was found that the solids transported by the Pandeiros River are mostly composed of inorganic material. A positive correlation was observed between the variables, which was stronger when correlated with suspended solids. The correlation analysis indicated that precipitation is one of the main factors related to sediment transport in the Pandeiros River. In conclusion, the reservoir did not significantly affect the sediment concentration in the Pandeiros River. Highlights: The Pandeiros Small Hydroelectric Plant Reservoir did not affect sediment transport. Solids are mostly composed of inorganic material. The reservoir did not significantly influence the sediment concentration and composition. Precipitation was one of the main factors associated with sediment transport.
- Subjects
TOTAL suspended solids; SEDIMENT transport; COMPOSITION of sediments; SUSPENDED solids; WATER quality; TURBIDITY
- Publication
Environmental Earth Sciences, 2024, Vol 83, Issue 16, p1
- ISSN
1866-6280
- Publication type
Article
- DOI
10.1007/s12665-024-11788-8