Sedimentological study in the La Floresta stream basin in the municipalities of Pailitas and Tamalameque, department of Cesar, Colombia

Abstract

Introduction−La Floresta brook is located between the mu-nicipalities of Pailitas and Tamalameque, has an extension of 13,500 hectares, where granulometric studies, humidity and sediment volume estimation contributed by the basin through the model EROSUP-U.Objective−In order to quantify the sedimentological contri-bution and classify the soil type based on AASTHO and USC.Methodology−84 samples were collected, each 10mts and 15mts, following the methodology proposed by the Federal Electricity Commission of Mexico.Results−The volumetric estimation, applying the universal equation of soil loss (EUPS), establishes that the sedimento-logical contribution of the brook is of 4,944,679,344.77 m3 / year; the soil was classified into four (4) groups (A-1-a, A-1-b, A-2-4, A-2-6), the most representative is A-1-a with 84.52% of the samples analyzed.Conclusions−La Floresta brook has a wide granulometric variability of sediments, with a greater proportion of gravel, coarse sand and fine sand, with or without well-graduated fine material, with a predominance of gravels and a sedimentologi-cal contribution of 4,944,679,344.77 m3/year.

Keywords

• classification of soils
• granulometry
• la floresta brook
• sedimentology
• sediments
• soil