The influence of riparian areas on direct surface runoff of precipitation eventsAuthor(s): Daiane Hellnvig Zarnott; Vitor Emanuel Quevedo Tavares; Christian Giardina; José Maria Filippini Alba
Source: Floresta e Ambiente
Publication Series: Scientific Journal (JRNL)
Station: Pacific Southwest Research Station
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This study aims to estimate the effect of different land uses around watercourses on runoff following extreme precipitation events and, consequently, on the mitigation of these effects. The study area is a rural watershed in the state of Rio Grande do Sul, Brazil. After characterizing the area, we estimated the surface runoff of the January 2009 precipitation event, which caused two casualties: losses in soil and productive area, as well as over US$ 300,000.00 in damages to the water supply system. Subsequently, simulations were performed considering different land uses and riparian areas under different precipitation levels. The results indicate that conserving riparian forests in the surroundings of watercourses decreases direct surface runoff, whereas intense soil use in these areas favors runoff increase.
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CitationZarnott, Daiane Hellnvig; Tavares, Vitor Emanuel Quevedo; Giardina, Christian; Alba, José Maria Filippini. 2020. The influence of riparian areas on direct surface runoff of precipitation events. Floresta e Ambiente. 27(4): e20180220. https://doi.org/10.1590/2179-8087.022018.
Keywordsconservation, forest hydrology, watershed management
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