Assessing the performance of a riparian vegetation model in a river with a low slope and fine sediment

2016 ◽  
Vol 38 (5) ◽  
pp. 517-528 ◽  
Author(s):  
Kelum Sanjaya ◽  
Takashi Asaeda
2019 ◽  
Author(s):  
TAKASHI ASAEDA ◽  
BHAGYA NALLAPERUMA ◽  
MAHENDRA B BANIYA ◽  
SENAVIRATHNA MDH JAYASHANKA

2019 ◽  
Vol 92 ◽  
pp. 12013 ◽  
Author(s):  
Abhijith Kamath ◽  
Wolfgang Gard ◽  
Jan-Willem Van de Kuilen

Timber sheet piles are widely used to protect canal and stream banks. Quite often, riparian vegetation also grows along these retaining structures. Roots of riparian vegetation mechanically reinforce the soil with their root systems. A timber sheetpile- vegetation model is developed taking into account the mechanical reinforcement of the vegetation roots. The model uses easy to obtain physical parameters, which makes it suitable to have a preliminary estimate of how the forces on the bio engineered structure would evolve.


2020 ◽  
Vol 276 ◽  
pp. 111339
Author(s):  
Rohan Benjankar ◽  
Andrew W. Tranmer ◽  
Dmitri Vidergar ◽  
Daniele Tonina

Ecohydrology ◽  
2012 ◽  
Vol 6 (4) ◽  
pp. 635-651 ◽  
Author(s):  
A. García-Arias ◽  
F. Francés ◽  
T. Ferreira ◽  
G. Egger ◽  
F. Martínez-Capel ◽  
...  

Water ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 77
Author(s):  
Mahendra B. Baniya ◽  
Takashi Asaeda ◽  
Takeshi Fujino ◽  
Senavirathna M. D. H. Jayasanka ◽  
Guligena Muhetaer ◽  
...  

The ecological dynamics of riparian areas interact with sediment transport in river systems, which plays an active role in riparian vegetation growth in the floodplain. The fluvial dynamics, hydraulics, hydro-meteorological and geomorphological characteristics of rivers are associated with sediment transport in river systems and around the riparian area. The flood disturbance, sediment with nutrients and seeds transported by river, sediment deposition, and erosion phenomena in the floodplain change the bare land area to vegetation area and vice versa. The difference in riparian vegetation area in the river floodplain is dependent on the sediment grain size distribution which is deposited in the river floodplain. Mathematical models describing vegetation growth in a short period exist in literature, but long-term modelling and validations are still lacking. In order to cover long-term vegetation growth modelling, a Dynamic Riparian Vegetation Model (DRIPVEM) was proposed. This paper highlights the existing modelling technique of DRIPVEM coupled with a Dynamic Herbaceous Model used to establish the interactive relationship of sediment grain sizes and riparian vegetation in the floodplain.


2016 ◽  
Vol 4 (1) ◽  
pp. 01
Author(s):  
Rui Pedro Rivaes ◽  
António Nascimento Pinheiro ◽  
Gregory Egger ◽  
Maria Teresa Ferreira

<p>The CASiMiR-vegetation model is a software that recreates the physical processes influencing the survival and recruitment of riparian vegetation, based on the relationship between ecologically relevant flow regime components and riparian vegetation metrics that reflect the vegetation’s responses to flow regime change. Working at a flow response guild level, this tool outperforms equivalent models by overriding various restrictions of the conventional modeling approaches. The potential of the CASiMiR-vegetation model is revealed in its application to different case studies during the development of a holistic approach to determine environmental flows in lowland Mediterranean rivers, based on woody riparian vegetation and fish species. Various modeling circumstances are described where CASiMiR-vegetation model was used with the purpose of sustaining the research addressing the thesis objectives. The main findings already accomplished in this research are highlighted to illustrate the outcomes that can be attained from the use of such a model.</p>


1983 ◽  
Vol 40 (8) ◽  
pp. 1173-1185 ◽  
Author(s):  
Charles P. Hawkins ◽  
Michael L. Murphy ◽  
N. H. Anderson ◽  
Margaret A. Wilzbach

Relationships between density of fish and salamanders, riparian canopy, and physical habitat were investigated by studying 10 pairs of streams. Among vertebrate taxa, salmonids and sculpins were more abundant in streams without riparian shading than in shaded streams. Abundance of salamanders was not affected by canopy type. Densities of both salamanders and sculpins were correlated with substrate composition, whereas salmonid abundance was not or only weakly so. Salamanders were found only at high-gradient sites with coarse substrates, and sculpins were most abundant at lower-gradient sites with finer-sized sediments. An interaction was observed between the influence of canopy and that of physical setting on density of both invertebrate prey and total vertebrates. Among shaded sites, densities decreased as percent fine sediment increased, but a similar relationship did not exist among open sites. Removal of the riparian vegetation surrounding a stream may therefore mask detrimental effects of fine sediment. These data provide one reason why it has been difficult in the past to generalize about the effects of fine sediment on stream biota.


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