Reducing river regulation effects on riparian vegetation using flushing flow regimes

Rivaes, Rui; Rodríguez‐González, Patricia María; Albuquerque, António; Pinheiro, António N.; Egger, Gregory; Ferreira, Maria Teresa

doi:10.1016/j.ecoleng.2015.04.059

Cited by 41 publications

(43 citation statements)

References 54 publications

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“…(Figure 4). These results and similar recently published ones (see Rivaes et al 2015b) Figure 5). A detailed analysis of the kappa statistic shows collectively that the best disturbance regime is composed by 10-year floods interspersed by 2 or 3-year floods.…”

Section: Evaluate the Influence Of The Main Drivers Of Riparian Vegetsupporting

confidence: 82%

“…Additionally, these reservoir flows appear to be able to control vegetation encroachment without causing severe geomorphic impacts on downstream river channels and with minor water losses to dam managers (Rivaes et al 2015b).…”

Section: Discussionmentioning

confidence: 99%

“…The resulting expected vegetation maps were analyzed using different map comparison methods. The inputted flow regimes considered a decade of floods combining two different recurrence intervals which generated a whole range of disturbance regimes composed by main floods interposed by intermediate floods (see Rivaes et al 2015b for a better understanding).…”

Section: Approach Riparian Vegetation Restoration Measures By Flow Rementioning

confidence: 99%

“…Based on reference site information to carry out model parameterization regarding the natural condition of riparian vegetation, the CASiMiR-vegetation model can ran the hypothetical or historical natural flow regime and determine the expected riparian patch mosaic in natural unregulated circumstances. The CASiMiR-vegetation model was applied to the MTRC study site to recreate its expected natural floodplain to be used as benchmark to following studies (see Rivaes et al 2015b for a better understanding).…”

Section: Setting Reference Conditions For Environmental Flowsmentioning

confidence: 99%

“…This tool recreates the physical processes influencing the survival and recruitment of riparian vegetation, resulting in a temporal and spatial illustration of the riparian vegetation patches. The dynamic vegetation model CASiMiR-vegetation has proved to be a valuable instrument to perform this task (see Benjankar 2009;Benjankar et al 2009;Egger et al 2009a;Egger et al 2009b;Benjankar et al 2011;García-Arias et al 2011;Rivaes et al 2011;Benjankar et al 2012;Egger et al 2012;Egger et al 2013;García-Arias et al 2013;Rivaes et al 2013;Politti et al 2014;Rivaes et al 2014;Rivaes et al 2015b). The tool is a dynamic rule-based spatially distributed model that simulates vegetation dynamics based on the relationship between ecologically relevant flow regime components (Poff et al 1997) and riparian vegetation metrics that reflect the vegetation's responses to flow regime change, such as age distribution, composition and cover (Merritt et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Using CASIMIR-VEGETATION Model in the context of modeling riparian woods and fish species to support a holistic approach for environmental flows to be used on river management and conservation

et al. 2016

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ResumoO modelo CASiMiR-vegetation recria os processos físicos que influenciam a sobrevivência e recrutamento da vegetação ripária, baseando-se na relação entre componentes do regime hidrológico ecologicamente relevantes e métricas de vegetação que refletem a resposta às alterações do regime hidrológico. Trabalhando ao nível da guilda de resposta ao escoamento, esta ferramenta supera modelos equivalentes ultrapassando várias restrições presentes nas modelações convencionais. O potencial do modelo CASiMiR-vegetation é revelado na sua aplicação a diferentes casos de estudo durante o desenvolvimento de uma abordagem holística para determinação de caudais ambientais em rios mediterrânicos, sustentado na vegetação ripária e espécies piscícolas. São descritas várias circunstâncias de modelação recorrendo ao modelo CASiMiR-vegetation com o propósito de suportar a investigação que visa aos objetivos da tese. Os principais resultados já alcançados nesta investigação são realçados para ilustrar os desenvolvimentos que podem ser alcançados a partir do uso de tal modelo. Palavras-chave:Modelação de vegetação ripária, caudais ambientais, restauro fluvial. AbstractThe 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 2 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.

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Section: Evaluate the Influence Of The Main Drivers Of Riparian Vegetsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Section: Approach Riparian Vegetation Restoration Measures By Flow Rementioning

confidence: 99%

Section: Setting Reference Conditions For Environmental Flowsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Using CASIMIR-VEGETATION Model in the context of modeling riparian woods and fish species to support a holistic approach for environmental flows to be used on river management and conservation

et al. 2016

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2019

Environmental Flow Assessment

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Smaller future floods imply less habitat for riparian plants along a boreal river

Jansson

Ström

2019

Ecological Applications

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Citation: Jansson, R., L. Str€ om, and C. Nilsson. 2019. Smaller future floods imply less habitat for riparian plants along a boreal river. Ecological Applications 29(8):Abstract. Climate-change projections suggest large changes in riverine flow regime, which will likely alter riparian communities. In northern Europe, forecasts propose lower annual spring flood peaks and higher winter flows, resulting in narrower riparian zones. To estimate the impact of climate change on habitat extent of riparian plants, we developed a framework estimating the sensitivity and exposure of individual species to streamflow change, and surveyed five reaches along the free-flowing Vindel River in northern Sweden. We modeled the hydrologic niche of riparian plant species based on the probability of occurrence along gradients of flood frequency and duration and used predicted future water-level fluctuations (based on climate models and IPCC emission scenarios) to calculate changes in flow-related habitat availability of individual species. Despite projected increases in runoff, we predict most species to decrease in riparian elevational extent by on average 12-29% until the end of the century, depending on scenario. Species growing in the upper, spring-flood-controlled part of the riparian zone will likely lose most habitat, with the largest reductions in species with narrow ranges of inundation duration tolerance (decreases of up to 54%). In contrast, the elevational extent of most amphibious species is predicted to increase, but conditions creating iso€ etid vegetation will become rarer or disappear: iso€ etid vegetation is presently found in areas where ice formed in the fall settles on the riverbank during the winter as water levels subside. Higher winter flows will make these conditions rare. We argue that our framework is useful to project the effects of hydrologic change caused by climate change as well as other stressors such as flow regulation also in other regions. With few rivers remaining unaffected by dams and other human stressors, these results call for monitoring to detect species declines. Management to alleviate species losses might include mitigation of habitat degradation from land-use activities, more environmentally friendly flow schemes, and more intensive management options such as mowing riparian meadows no longer regularly maintained by recurrent floods.

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Reducing river regulation effects on riparian vegetation using flushing flow regimes

Cited by 41 publications

References 54 publications

Using CASIMIR-VEGETATION Model in the context of modeling riparian woods and fish species to support a holistic approach for environmental flows to be used on river management and conservation

Using CASIMIR-VEGETATION Model in the context of modeling riparian woods and fish species to support a holistic approach for environmental flows to be used on river management and conservation

Literature cited

Smaller future floods imply less habitat for riparian plants along a boreal river

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