International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2557

Full Length Research Paper

Removing sediment transport in open channel with submerged aquatic vegetation: Laboratory study

Amir Montakhab* and Badronnisa bt. Yusuf
Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia.
Email: [email protected]

  •  Accepted: 09 August 2011
  •  Published: 16 November 2011

Abstract

 

Vegetation affects fluvial processes and is key role in river management in particular sediment transport. Vegetation characteristics such as vegetation’s density, height and distributions have significant effect on sediment transport in vegetated channel. This paper studied the role of aquatic vegetation characteristics in sediment transport. Laboratory experiments were conducted in a fabricated channel with real vegetations (Hydrilla verticillata) planted on its bed. The total suspended solid (TSS) was applied for sediment rate measurement. As results, it is found that vegetation density and distribution has significant impact to the sediment entrapment capacity of the vegetation. An increased coverage of the vegetation from 33 to 66% of the flow area has increased the sediment trapping capacity in average by 15%. To sum up, the present study was designed to determine the effect of the vegetation properties on sediment transport rate.

 

Key words:  Sediment transport, aquatic vegetation, Flow, vegetation open channel.

Abbreviation

TSS, Total suspended solid.