期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2019
卷号：10
期号：10
页码：1-8
出版社：University of Mohammed Premier Oujda
摘要：The objective of this work is to study the vegetation effect on sediment transport and
the corresponding turbidity. First, we want to highlight the effect of vegetation and
provide a database for future studies. In fact, laboratory experiments in two rectangular
channels were carried out at the National Institute of Agronomy of Tunisia. A carpet of
a flexible vegetation having a height of stems hp=40mm was placed on the channel
central part, where different sand quantities were injected at the upstream of the
vegetated environment for different flow rates. Then determination of the corresponding
upstream and downstream turbidities and retained sand quantities by vegetation was
considered. The results of this study have shown that the turbidities upstream and
downstream of the vegetated environment decrease with time, following an exponential
pace. It has also been noted that the downstream turbidity is lower than the upstream
turbidity at the first time of the experiment, but after a while they merge into the same
constant for the different flows, marking a state of stabilization.
关键词：Dense vegetation;
Experiments;
Flow;
Turbidity;
Open channel;
Sediment transport;
