Resumen
New floodplain formation starts with the development of
near-bank sediment deposits such as alternate bars and
point bars (e.g. Hickin, 1984). An important step of this
process is the colonization of the areas emerging during
low flow by plants. Vegetation protects local soil from
erosion during subsequent high flows and enhances local
sedimentation, increasing the vertical growth of
colonized areas. The morphological effects of bar
colonization by plants has been studied using numerical
models (e.g. Crosato and Samir Saleh, 2011), but
laboratory experiments have so far focused on the
effects of floodplain vegetation (e.g. Tal and Paola,
2010). This work describes the effects of alternate bar
colonization by plants on channel morphology in a
large-scale laboratory setting with variable discharge
and sediment recirculation. Three situations are analysed
and compared: without vegetation (a), with vegetated
floodplains only (b) and with vegetation colonizing also
the areas emerging during low flows (c).
near-bank sediment deposits such as alternate bars and
point bars (e.g. Hickin, 1984). An important step of this
process is the colonization of the areas emerging during
low flow by plants. Vegetation protects local soil from
erosion during subsequent high flows and enhances local
sedimentation, increasing the vertical growth of
colonized areas. The morphological effects of bar
colonization by plants has been studied using numerical
models (e.g. Crosato and Samir Saleh, 2011), but
laboratory experiments have so far focused on the
effects of floodplain vegetation (e.g. Tal and Paola,
2010). This work describes the effects of alternate bar
colonization by plants on channel morphology in a
large-scale laboratory setting with variable discharge
and sediment recirculation. Three situations are analysed
and compared: without vegetation (a), with vegetated
floodplains only (b) and with vegetation colonizing also
the areas emerging during low flows (c).
Título traducido de la contribución | Efectos morfológicos de la colonización de plantas en barras cercanas a bancas |
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Idioma original | Inglés |
Título de la publicación alojada | Morphological effects of plant colonization of near-bank bars |
Estado | Publicada - 18 sep. 2017 |
Evento | 10th Symposium on River, coastal and estuarine morphodynamics (RCEM) 2017 - Padova, Padova, Italia Duración: 15 sep. 2017 → 22 sep. 2017 http://cirefluvial.com/eventos_ver.php?id=246 |
Conferencia
Conferencia | 10th Symposium on River, coastal and estuarine morphodynamics (RCEM) 2017 |
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Título abreviado | RCEM 2017 |
País/Territorio | Italia |
Ciudad | Padova |
Período | 15/09/17 → 22/09/17 |
Dirección de internet |