2021
DOI: 10.1029/2020wr028577
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Effects of Vegetation, Sediment Supply and Sea Level Rise on the Morphodynamic Evolution of Tidal Channels

Abstract: Tidal channels are typical morphological features of tidal basins. They are preferential pathways for the transport of water, sediments, and nutrients within tidal systems and control the related exchanges with the sea (Coco et al., 2013;de Swart & Zimmerman, 2009;Hughes, 2012). Tidal channels thus exert primary control on the morphodynamic evolution of other typical morphological features of tidal landscapes such as tidal flats and salt marshes, eventually controlling the emerging equilibrium states (Marani e… Show more

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Cited by 14 publications
(9 citation statements)
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“…Indeed, the Venice channels investigated here are definitely narrower than synthetic channels recently reproduced in Sgarabotto et al. (2021), where mean channel width reaches 20 m in a basin 100 times larger than that here considered. In the case of WI, simulated channels are generally wider and have a smaller spacing as compared to channels observed in the field.…”
Section: Model Testingcontrasting
confidence: 51%
See 2 more Smart Citations
“…Indeed, the Venice channels investigated here are definitely narrower than synthetic channels recently reproduced in Sgarabotto et al. (2021), where mean channel width reaches 20 m in a basin 100 times larger than that here considered. In the case of WI, simulated channels are generally wider and have a smaller spacing as compared to channels observed in the field.…”
Section: Model Testingcontrasting
confidence: 51%
“…In our simulations, we do not account for the effects of fluvial water discharge. The corresponding sediment input would increase sediment availability, thus favoring vertical accretion and horizontal progradation of salt marshes and, hence, their resilience to sea‐level rise (Alizad et al., 2018; D'Alpaos et al., 2011; Sgarabotto et al., 2021). In addition, the present model investigates channel and salt‐marsh initiation under constant rates of RSLR.…”
Section: Model Testingmentioning
confidence: 99%
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“…Halophytic vegetation has a stabilizing effect on channel banks (Y. Chen et al., 2019). This effect, coupled with the competing feedbacks produced by vegetation encroachment on salt marsh surfaces (Sgarabotto et al., 2021), leads to small width‐to‐depth ratios. Moreover, the lateral migration rate can be reduced by several orders of magnitude as compared to unvegetated mudflats (Finotello et al., 2018; Gabet, 1998).…”
Section: Feedbacks Between Bank Retreat and Morphodynamicsmentioning
confidence: 99%
“…First, fundamental species niches are typically approximated by the realized ones. Therefore, although field studies suggest performances of individual species to increase steadily with elevation in the absence of competition, habitat quality and vegetation performances are typically assumed to peak at an optimum marsh elevation, and to decrease as elevation moves away from such optimum (Morris et al, 2002;Morris, 2006;Morris, 2007;D'Alpaos et al, 2007;Kirwan and Murray, 2007;Kirwan and Guntenspergen, 2010;Fagherazzi et al, 2012;Da Lio et al, 2013;Marani et al, 2013;Kirwan et al, 2016;Geng et al, 2021;Kalra et al, 2021;Sgarabotto et al, 2021). Second, competition in numerical models of marsh vegetation dynamics, with few exceptions (e.g., Marani et al, 2006), does not occur by direct species interaction.…”
Section: Introductionmentioning
confidence: 99%