Sedimentation survey of Lago Lucchetti, Yauco, Puerto Rico, September 2013–May 2014

Sediment Mobilization by Hurricane‐Driven Shallow Landsliding in a Wet Subtropical Watershed

“…Due to the fact that landslide mobilization and delivery estimates derived here are for a single event, no annualized comparisons are possible. Therefore, comparisons were based on the equivalent number of years the mobilized and delivered sediment represents by dividing the mass of landslide sediment by the watershed scale surface erosion rates and LLW‐scale annual sediment delivery rates (Gómez‐Fragoso, 2016; Soler‐López, 2001a).…”

“…The combined effect of largely exposed and highly erodible soils typical of sun‐grown coffee cultivation, high annual rainfall, and steep topography are presumed to be the reason why sediment yield rates into Lago Lucchetti (2,800–4,200 Mg km −2 y −1 ; Gómez‐Fragoso, 2016; Soler‐López, 2001a) are the highest amongst all 13 major water reservoirs on the island (PR‐wide range: 420–2,600 Mg km −2 y −1 ; Soler‐López, 2001b). Curtailing surface erosion has been the focus of watershed management strategies for LLW (Sturm et al., 2012).…”