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Publication
Efeito do incêndio de Catraia no comportamento hidrológico da bacia hidrográfica do Rio Séqua
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| 2.85 MB | Adobe PDF |
Advisor(s)
Abstract(s)
O uso e a ocupação do solo, e os incêndios florestais influenciam a relação entre precipitação-escoamento superficial e, consequentemente, o regime de cheias num curso de água. Neste estudo utilizou-se o modelo Hydrologic Engineering Center - Hydrologic Modeling System para simular a resposta hidrológica da bacia hidrográfica do Rio Séqua, em cenário pré-incêndio e pós-incêndio de Catraia, Algarve, Portugal. Os resultados revelam que os caudais de ponta de cheia sofrem um incremento de 25% nas sub-bacias hidrográficas mais afetadas pelo incêndio.
The soil use and forest fires have effects on the potential infiltration and consequently on the down-flow floods. The Hydrologic Engineering Center - Hydrologic Modeling System was used for modeling the hydrologic response of the Séqua basin, on pre-fire and post-fire scenarios, for the Catraia forest fire, Algarve, Portugal. The results show that peak flows could increase by 25% on the sub-basins where the fire effects were more severe.
The soil use and forest fires have effects on the potential infiltration and consequently on the down-flow floods. The Hydrologic Engineering Center - Hydrologic Modeling System was used for modeling the hydrologic response of the Séqua basin, on pre-fire and post-fire scenarios, for the Catraia forest fire, Algarve, Portugal. The results show that peak flows could increase by 25% on the sub-basins where the fire effects were more severe.
Description
Keywords
Precipitação Infiltração Bacia hidrográfica Incêndio florestal Hidrograma de cheia Rainfall Infiltration Hydrographic basin Forest fires Floods
Citation
Publisher
Imprensa da Universidade de Coimbra / Riscos - Associação Portuguesa de Riscos, Prevenção e Segurança