9th Advanced Engineering Days , Tabriz, İran, 9 - 10 Temmuz 2024, ss.1-3
Understanding
suspended sediment dynamics is crucial for effective water resource management
and environmental preservation, particularly in semiarid regions where flood
events significantly influence sediment transport. This research evaluates the
dynamics of suspended sediments during flood events in the semiarid
Mediterranean environment of the Ksob basin, Algeria. Analyzing data from major
floods recorded over 18 years (1974-1991), the study compares suspended and water
sediment yields from flood events to annual yields. The sediment rating curve
(SRC) approach was employed to simulate suspended sediment concentration and
water discharge. The key findings indicate total water sediment yields of
214.48 million m³ and 6.22 million tons during floods. This accounted for
19.27% of the total water load and 29.90% of the total suspended sediment load.
Flood events between 1974 and 1991 transported approximately 41.33 million m³
of water and 1.86 million tons of suspended sediments. The SRCexplained over
92% of the variance in sediment transport for significant floods, highlighting
the predominance of annual floods in sediment dynamics. The regression
relationship between SRC parameters at the flood events (R² = 0.80) suggests
consistent suspended sediment processes during floods, providing essential
insights for calculating river sediment loads and understanding sediment
transport behavior in semiarid regions.