(Article of periodic en Anglais - 2013)

Document title

Factors influencing storm-generated suspended-sediment concentrations and loads in four basins of contrasting land use, humid-tropical Puerto Rico

Authors(s) and Affiliation(s)

GELLIS A.C. (1) ;
(1) U.S. Geological Survey, Maryland Water Science Center, Baltimore, ETATS-UNIS


The significant characteristics controlling the variability in storm-generated suspended-sediment loads and concentrations were analyzed for 4 basins of differing land use (forest, pasture, cropland, and urbanizing) in humid-tropical Puerto Rico. A model of sediment availability and hysteresis was developed. Statistical analysis involved stepwise regression on factor scores. The explanatory variables were attributes of flow, hydrograph peaks, and rainfall, categorized into 5 flow periods. Sediment availability in the study basins is related to land use and underlying geology. The supply of sediment and its location in the watershed have a strong influence on how current and previous storm events, and flow and rainfall between storm events, affect sediment loads and concentrations.


Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 104 [pp. 39-57]

Bibliographic references : 94 ref.

Collation : 9 fig., 9 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.10.018

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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