01983nab a2200289 i 4500 BR-BrBNA 20260610094405.0 260610b2020 bl.qr|pooa||| 00| 0 eng | BR-BrBNA eng P10 Zarnott, Daiane Hellnvig Tavares, Vitor Emanuel Quevedo Giardina, Christian Alba, José Maria Filippini The Influence of Riparian Areas on Direct Surface Runoff of Precipitation Events Publicação on-line; 29 ref.; 2 tables; 8 illus.; Summary (En) Abstract 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. Keywords: conservation, forest hydrology, watershed management. USO DA TERRA CONSERVAÇÃO HIDROLOGIA FLORESTA BACIA HIDROGRÁFICA 2929 347959 Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 2025-0458 Floresta e Ambiente (Brazil) 1415-0980 / ISSN 2179-8087 0nline v. 27(4) p. 1-9; (2020) BR2026001890 https://www.scielo.br/j/floram/a/q4dmbyPDQH5WvGhmrWYx7pF/?format=pdf&lang=en ANA 348076 348076