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Volume :42 Issue : 4 2014      Add To Cart                                                                    Download

Assessment of the Sedimentary Yield in the Basin of Wadi Al-Jurthan - South Jordan

Auther : Ali Hamdi Abu Salim

This study aims at assessing the magnitude of the sedimentary yield of Wadi Al- Jurthan through the analysis of geomorphological variables closely related to a dynamic that forms a load of sediments in the basin and the changes in the amount determined by these variables; the most important variables are the water discharge, the morphometric properties of the water network, and the morphology of the surface. The study adopted the methodology of the quantitative analysis that shows the relationship between the water discharge and the sedimentary yield of the Valley. Also the study applied quantitative equations to measure the volume of sediment accumulated in the dam lake during the period (2001/2002 - 2010/2011). Most values of those equations were empirically measured in the field.
The study found several results, including: the increasing of the volume of the sedimentary yield that steadily moves towards the outlet of the stream. Because of the increase in the amount of water discharge, the rate of the suspended load varied between (435 mg/l) in the upper basin to (662.5 mg/l) in the lower basin. The hypsometric coefficient indicated that the topography is rugged; a result which proposes the likelihood of an increasing erosive activity and the sedimentary yield of the Valley in the wet periods. Also the results showed the negative impact of the sedimentary yield on the storage capacity of the dam lake; the rate of the decrease in the amplitude varies between (1800-6390 cubic meters) during the period (2001/2002 - 2010/2011).
Keywords: Wadi Al-Jurthan, Sedimentary Yield,Water discharge, Water Network.

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