Simulation of Vegetation Response to Modified Hydrologic Regimes: A Probabilistic Model Based on Niche Differentiation in a Floodplain Forest

Franz, Eldon H.; Bazzaz, F. A.

doi:10.2307/1935119

Cited by 98 publications

(76 citation statements)

References 25 publications

(10 reference statements)

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“…Whereas the control of sediment dynamics by wetland plants has been identifi ed as an important component of intertidal ecosystem function (Lee and Partridge, 1983;Pasternack and Brush, 1998;Bos et al, 2007;van Hulzen et al, 2007), the effect of riparian vegetation on sediment erosion and deposition within fl uvial systems has been studied mainly from the geomorphic perspective of landform dynamics (Nanson and Beach, 1977;Gurnell et al, 2001;Steiger et al, 2001a;Cotton et al, 2006;Heppell et al, 2009) Riparian habitat structure, water fl ow variability and sediment deposition and erosion were generally considered as limiting factors and as disturbance in the ecological literature (Franz and Bazzaz, 1977;Naiman and Décamps, 1997;Edwards et al, 1999;Lenssen et al, 2000;Amoros and Bornette, 2002). Some geomorphologists have started recently to focus their attention on feedback between form and function in fl uvial ecosystems considering that geomorphology controls riparian vegetation dynamics, and riparian vegetation controls geomorphology (Bendix and Hupp, 2000;Hupp and Bornette, 2003;Gurnell et al, 2000Gurnell et al, , 2005Parsons and Thoms, 2007;Francis et al, in press).…”

Section: Introductionmentioning

confidence: 99%

Control of sediment dynamics by vegetation as a key function driving biogeomorphic succession within fluvial corridors

Corenblit

Steiger

Gurnell

et al. 2009

Earth Surf Processes Landf

243

218

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Riparian vegetation responds to hydrogeomorphic disturbances and environmental changes and also controls these changes. Here, we propose that the control of sediment erosion and deposition by riparian vegetation is a key geomorphological and ecological (i.e. biogeomorphic) function within fl uvial corridors. In a 3 year study, we investigated the correlations between riparian vegetation and hydrogeomorphic dynamics along a transverse gradient from the main channel to the fl oodplain of the River Tech, France. Sediment erosion and deposition rates varied signifi cantly along the transverse gradient as a function of the vegetation biovolume intercepting water fl ow. These effects, combined with the extremely strong mechanical resistance of pioneer woody structures and strong resilience of pioneer labile herbaceous communities, Populus nigra and Salix spp., explain the propensity of biogeomorphic succession (i.e. the synergy between vegetation succession and landform construction) to progress between destructive fl oods. This geomorphological function newly identifi ed as an 'ecosystem function' per se encompasses the coupling of habitat and landform creation, maintenance and change with fundamental ecosystem structural changes in space and in time. Three different biogeomorphic functions, all related to the concept of ecosystem engineering, were identifi ed: (i) the function of pioneer herbaceous communities to retain fi ne sediment and diaspores in the exposed zones of the active tract near the water resource, facilitating recruitment of further herbaceous and Salicacea species; (ii) the function of woody vegetation to drive the construction of forested islands and fl oodplains; and (iii) the function of stabilised riparian forests to act as 'diversity reservoirs' which can support regeneration after destructive fl oods. Overall, this study based on empirical data points to the fundamental importance of sediment fl ow control by pioneer riparian vegetation in defi ning fl uvial ecosystem and landform organisation in time and in space.

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Section: Introductionmentioning

confidence: 99%

Control of sediment dynamics by vegetation as a key function driving biogeomorphic succession within fluvial corridors

Corenblit

Steiger

Gurnell

et al. 2009

Earth Surf Processes Landf

243

218

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“…However, close to the rivers, plant survival is clearly not due exclusively to the water availability; also the frequency, duration and magnitude of floods are conditioning factors for a wellbalanced riparian vegetation dynamics (Tabacchi et al, 1998;Gergel et al, 2002;Rood et al, 2003). During last years, a variety of ecological models have evolved to address changes in vegetation species as consequence of changes in environmental variables and hydrological alterations (Franz and Bazzaz, 1977;Pearlstine et al, 1985;Auble et al 1994;Mahoney and Rood, 1998;Altier et al, 2002;Braatne et al, 2002;Baptist and De Jong, 2005;Glenz, 2005;Hooke et al, 2005;Murphy et al, 2006). A common feature for such mathematical models is the conceptualization of the functional relationships between hydrology and vegetation species or communities.…”

Section: Introductionmentioning

confidence: 99%

Implementing a dynamic riparian vegetation model in three European river systems

et al. 2012

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Riparian ecosystems are required to be preserved to achieve the good ecological status. The Water Framework Directive (WFD 2000/60/EC) specifically supports the assessment of new management tools that allow the European Member States to achieve the good ecological status of the river related ecosystems. Within several approaches, a dynamic riparian vegetation distributed model (CASiMiR-vegetation), with a time step of one year, has been selected as a useful first-step tool to achieve the WFD requirements. The model has been implemented into three river reaches with different climatic and hydrologic settings, located in three European countries. Common bases were established in the model set-up. The model was calibrated independently in the Kleblach reach (Drau River, Austria), the Ribeira reach (Odelouca River, Portugal), and the Terde reach (Mijares River, Spain) with simulation periods of 8, 11 and 41 years respectively. The parameters values and the results were comparable between the different countries. The calibration performance achieved high correctly classified instances (CCI ≈ 60%). Additionally, weighted kappa values ranged from 0.52 to 0.66 in distinguishing riparian succession phases. The model behaved similarly in the validation, even offering better results in most cases. This work demonstrates the applicability of this model in This is a pre-copyedited, author-produced PDF version following peer review of the article: García-Arias A., Francés F., Ferreira T., Egger G., Martínez-Capel F., Garófano-Gómez V., Andrés-Doménech I., Politti E., Rivaes R., Rodríguez-González P.M. (2013). Implementing a dynamic riparian vegetation model in three European river systems. Ecohydrology, 6(4):635-651. doi: 10.1002/eco.1331, which has been published in definitive publisher-authenticated form at http://onlinelibrary.wiley.com

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“…Franz and Bazzaz, 1977;Hupp and Osterkamp, 1996;Johnson, 1998;Merritt and Cooper, 2000). In turn, floodplain vegetation influences the river morphodynamic trends, by locally increasing the resistance to the flow while also reducing soil erodibility (e.g.…”

mentioning

confidence: 99%

Effects of river floodplain lowering and vegetation cover

Arroyave¹,

Crosato²

2010

Proceedings of the Institution of Civil Engineers - Water Manag

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The current river management policy in the Netherlands is to give rivers more space, mainly by main channel widening and floodplain lowering. The aim is to reduce flood water levels and to create more favourable conditions for river ecology. However, the effect on water levels gradually disappears due to sedimentation and vegetation growth on floodplains. The key questions are how effective these measures are and how long the desired effect remains. A two-dimensional, depthaveraged, morphological model was applied to the Meers pilot project on the Common Meuse River. The project consisted of channel widening by floodplain excavation, carried out over a short reach. Spatially varying floodplain vegetation was included. The results showed that the pilot project would be effective in lowering local water levels during a period of 20 years for floods having a return period of 1-4 years but not for floods having a return period of 100 years. In the latter case, water levels would be dominated by a restriction in floodplain width, causing backwater effects. Floodplain vegetation was found to shorten the lifetime of the project by enhancing sedimentation.

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Simulation of Vegetation Response to Modified Hydrologic Regimes: A Probabilistic Model Based on Niche Differentiation in a Floodplain Forest

Cited by 98 publications

References 25 publications

Control of sediment dynamics by vegetation as a key function driving biogeomorphic succession within fluvial corridors

Control of sediment dynamics by vegetation as a key function driving biogeomorphic succession within fluvial corridors

Implementing a dynamic riparian vegetation model in three European river systems

Effects of river floodplain lowering and vegetation cover

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