Temporal Variation of Specific Sediment Yield at Sidi Bel Abbes Basin, North Algeria

2019 ◽  
pp. 61-63
Author(s):  
Hayet Madani Cherif ◽  
Abderezzak Bouanani
Keyword(s):  
Temporal Variation ◽  
Sediment Yield ◽  
North Algeria ◽  
Specific Sediment Yield

Quantification of biogeomorphic interactions between small-scale sediment transport and primary vegetation succession on proglacial slopes of the Gepatschferner, Austria

2021 ◽  
Author(s):  
Stefan Haselberger ◽  
Lisa-Maria Ohler ◽  
Jan-Christoph Otto ◽  
Robert R. Junker ◽  
Thomas Glade ◽  
...  
Keyword(s):  
Sediment Transport ◽  
Sediment Yield ◽  
Plant Cover ◽  
Species Abundance ◽  
Small Scale ◽  
Vegetation Composition ◽  
Mechanical Erosion ◽  
Successional Stages ◽  
Three Stages ◽  
Specific Sediment Yield

<p>Proglacial slopes provide suitable conditions to observe the co-development of abiotic and biotic systems. The frequency and magnitude of geomorphic processes and composition of plants govern this interplay, which is described in the biogeormorphic feedback window for glacier forelands. The study sets out to quantify small-scale sediment transport via mechanical erosion plots along a plant cover gradient and to investigate the multidirectional interactions between abiotic and biotic processes. We aim to generate quantitative data to test the biogeomorphic feedback window.</p><p>Small-scale biogeomorphic interactions were investigated on 30 test plots of 2 x 3 m size on proglacial slopes of the Gepatschferner (Kaunertal) in the Austrian Alps during snow-free summer months over three consecutive years. The experimental plots were established on slopes along a plant cover gradient. A detailed vegetation survey was carried out to capture biotic conditions and specific sediment yield was measured at each plot. Species abundance and composition at each site, as well as plant functional types reflected successional stages.</p><p>We observed a strong decline in geomorphic activity on plots with above 30% plant cover. Mean monthly rates of specific sediment yield decreased from 111 g m<sup>-2 </sup>to 37 g m<sup>-2</sup>. Non-metric multidimensional scaling showed distinct vegetation composition for the three stages of biogeomorphic succession. Quantified process rates and observed vegetation composition support the concept of biogeomorphic feedback windows. The findings help to narrow down a stage during succession where the importance of biotic processes start to dominate.</p>

Temporal Variation of Sediment Yield

1996 ◽  
Vol 1 (4) ◽  
pp. 169-176 ◽  
Author(s):  
U. C. Kothyari ◽  
A. K. Tiwari ◽  
Ranvir Singh
Keyword(s):  
Temporal Variation ◽  
Sediment Yield

scholarly journals DISCHARGE LIQUID, VECTOR OF TOTAL SUSPENDED SEDIMENT (TSS) OF MAYO TSANAGA AT MAROUA (FAR NORTH CAMEROON)

2018 ◽  
Vol 6 (3) ◽  
pp. 15-26
Author(s):  
Bineli Ambomo Etienne ◽  
Ombolo August ◽  
Ewodo Mboudou Guillaume ◽  
Madi Ali ◽  
Fita Dassou Elisabeth
Keyword(s):  
Suspended Sediment ◽  
Risk Prediction ◽  
Sediment Yield ◽  
Velocity Fields ◽  
Hydraulic Structures ◽  
Total Suspended Sediment ◽  
Lake Chad ◽  
Far North ◽  
Lake Chad Basin ◽  
Specific Sediment Yield

Mayo Tsanaga is the Cameroonian part of the Lake Chad Basin ungauged.  The knowledge of discharge is essential for the design of hydraulic structures and for hydrological risk prediction. The objective of this study is to evaluate discharge, total suspended sediment and the deduction of the specific sediment yield. The exploration of velocity fields and the differences in the pre and post filtration filter weights were adopted as a methodology. The results revealed that annual discharges of Mayo Tsanaga at Maroua from 2012 to 2014 are respectively 1.94 ± 0.38 m3 /s, 2.18 ± 0.43 m3/s and 0.89 ± 0.17 m3/s. Mayo Tsanaga discharge will be used when sizing the second bridge on this river. Mayo Tsanaga's  daily mean concentrations of TSS are respectively 429.384 mg/L ± 12.88 for the year 2013 and 17.45 ± 0.52 mg/L for the year 2014. The corresponding specific sediment yield (SSY) of Mayo Tsanaga are 34.92 t.km-2.year-1 in 2013 and 0.57 t.km-2.year-1 in 2014. The SSY expresses the amount of  ground  lowering  for  the  whole  catchment.

scholarly journals Specific sediment yield model for reservoirs with medium-sized basins in Spain: An empirical and statistical approach

2019 ◽  
Vol 681 ◽  
pp. 82-101 ◽  
Author(s):  
Alberto Rodríguez Bachiller ◽  
José Luis García Rodríguez ◽  
José Carlos Robredo Sánchez ◽  
David López Gómez
Keyword(s):  
Sediment Yield ◽  
Statistical Approach ◽  
Yield Model ◽  
Specific Sediment Yield
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