Dissertação
Avaliação da produção de sedimentos em eventos chuvosos na bacia experimental de São Martinho da Serra
Fecha
2007-11-19Registro en:
SANGOI, Raniere Gustavo. Evaluation of the production of sediments in rainfall events in São Martinho da Serra experimental basin. 2007. 132 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2007.
Autor
Sangoi, Raniere Gustavo
Institución
Resumen
The intense use of the soil and natural resources emphasizes the importance of researching fields related to sediment transport and sediment deposition in catchments.
Consequently sediment yield is object of concern in situations regarding the land se and water resources management.
The main objective of this research was to evaluate the sediment yield at Sao Martinho da Serra experimental catchment (region named Lajeado Grande). Such
evaluation was accomplished by monitoring the water resources in the specific region. The field methodology included liquid discharges measurements, rainfall data
collection, suspended sediment and bed material sampling, included tests to determine suspended sediment concentration and particle size distribution for the suspended and bed material. Sediment and flow rating curves were produced to the specific catchment. The largest possible number of rainfall events was monitored during the research period (23/12/2005 a 15/06/2007). The water level and the discharge measurements were carried out upstream and downstream to the studying area. Rainfall data were obtained
from the rain gauge installed next to the area. Six methods were applied to calculate the sediment yield during rainfall events. Such methods were chosen according the
measured data availabilty. The best adjust between sediment yield measured and calculated values was obtained with the application of MUSLE, which was applied by sub-catchments and relates the sediment yield to the observed effective rainfall (Hef).