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Orientador(es)
Resumo(s)
Este estudo examina os impactos hidromorfossedimentares da barragem de Sidi Chahed no rio Mikkès, situado na bacia do Saïs (bacia do Sebou, Marrocos). Foram utilizados levantamentos de campo, amostragem de sedimentos e análises longitudinais e transversais para avaliar as variações no regime de fluxo, na deposição de sedimentos e na morfologia do canal. Os resultados indicam que a retenção pela barragem reduziu significativamente o transporte de sedimentos a jusante, modificou a geometria dos meandros e alterou a dinâmica fluvial natural. Essas mudanças provocaram incisão do canal e triagem dos sedimentos, evidenciando a influência das infraestruturas hidráulicas nos rios.
This study examines the hydromorphosedimentary impacts of the Sidi Chahed Dam on the Mikkès River within the Saïs Basin (Sebou Basin, Morocco). Field surveys, sediment sampling, and longitudinal and cross-sectional analyses were used to evaluate variations in flow regime, sediment deposition, and channel morphology. The results indicate that dam retention significantly reduced downstream sediment transport, modified meander geometry, and disrupted natural fluvial dynamics. These changes have led to channel incision and sediment sorting. The findings highlight the effects of hydraulic infrastructure on river systems and provide useful insights for integrated river management in semi-arid environments.
This study examines the hydromorphosedimentary impacts of the Sidi Chahed Dam on the Mikkès River within the Saïs Basin (Sebou Basin, Morocco). Field surveys, sediment sampling, and longitudinal and cross-sectional analyses were used to evaluate variations in flow regime, sediment deposition, and channel morphology. The results indicate that dam retention significantly reduced downstream sediment transport, modified meander geometry, and disrupted natural fluvial dynamics. These changes have led to channel incision and sediment sorting. The findings highlight the effects of hydraulic infrastructure on river systems and provide useful insights for integrated river management in semi-arid environments.
Descrição
Palavras-chave
Barragem de Sidi Chahed Rio Mikkès Morfologia fluvial Dinâmica de sedimentos Impacto fluvial Sidi Chahed Dam Mikkès river River morphology Sediment dynamics Fluvial impact
Contexto Educativo
Citação
Editora
Universidade Aberta
