water Article Erosion, Suspended Sediment Transport and Sedimentation on the Wadi Mina at the Sidi M’Hamed Ben Aouda Dam, Algeria Faiza Hallouz 1,2,* ID , Mohamed Meddi 1, Gil Mahé 3, Samir Toumi 1 and Salah Eddine Ali Rahmani 4 ID 1 Laboratoire Génie de l’Eau et de l’Environnement, Higher National School of Hydraulic, 09000 Blida, Algeria;
[email protected] (M.M.);
[email protected] (S.T.) 2 University of Khemis Miliana, 44225 Ain Defla, Algeria 3 IRD Hydrosciences, 34090 Montpellier, France;
[email protected] 4 Geo-Environment Laboratory, Faculty of Earth Sciences, Geography and Spatial Planning, University of Sciences and Technology Houari Boumediene, 16111 Bab Ezzouar Algiers, Algeria;
[email protected] * Correspondence:
[email protected]; Tel.: +213-660-319-854 Received: 28 March 2018; Accepted: 26 June 2018; Published: 4 July 2018 Abstract: The objective of this study was to follow-up on the evolution of the hydro-pluviometric schemes and particular elements of Wadi Mina (6048 km2) to the Sidi M’Hamed Ben Aouda Dam to evaluate the silting origin and status of this dam situated in the northwest of Algeria. The pluviometric study targeted a series of rains during 77 years (1930–2007), the liquid discharge data cover a period of 41 years (1969–2010) and the solids and suspended sediment concentrations data cover very variable periods, starting from 22 to 40 years for the entire catchment area. The statistical tests for ruptures detection on the chronological series of rains and discharges indicate a net reduction of rains of more than 20% on the entire basin since 1970.