The effect of experimental inundation and sediment deposition on the survival and growth of two herbaceous riverbank plant species

Lowe, Bronwyn; Watts, Robin; Roberts, Jacqueline; Robertson, Alistar

doi:10.1007/s11258-010-9721-1

Cited by 33 publications

(19 citation statements)

References 45 publications

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“…However, the complex and varied response of different aquatic and terrestrial species to alterations of the frequency and duration of floodplain inundation (Poff and Zimmerman, 2010) suggests that floodwater inundation alone does not singularly control ecological response. In some cases changes in sedimentation may be as important as changes in inundation frequency and duration in determining ecological response Lockaby et al, 2005, Walls et al, 2005Corenblit et al, 2009;Jolley et al, 2009;Lowe et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Joint isotopic mass balance: a novel approach to quantifying channel bed to channel margins sediment transfer during storm events

Underwood

Renshaw

Dade

et al. 2015

Earth Surf Processes Landf

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The important role of floodplains and the broader riparian zone in providing temporary storage for a large fraction of the annual sediment load of rivers is well established, but this understanding is largely based on observations of the long-term average behavior of the catchment. Here we combine measurements of the fallout radionuclides 7 Be and 210 Pb and the stable isotopes of hydrogen in water to quantify fine sediment mobilization and storage in a stream and its channel margins during individual intermediate-sized storm events with recurrence intervals of a few months or less. We demonstrate this method using five storm events in a small (~15 km 2 ), undeveloped, gravel-bedded tributary of the Connecticut River (USA). We estimate that in each storm, the mass of sediment deposited onto the margins accounts for almost 90% of the sediment mobilized from the bed, with the remainder of the mobilized bed sediment transported downstream as suspended load. The result that the bed is a net source of sediment to the stream and the margins a net sink is robust, but estimates of the mass of material eroded from the bed and deposited on the margins are less certain. The source of sediment to the bed remains unclear as, consistent with earlier studies, we observe only limited deposition of sediment to the bed during the storm events. The suspended sediment is organic-rich and thus its source may be associated with in-channel organic decay between storm events. Understanding the coupled interactions between discharge magnitude and frequency and sediment resupply at the event time scale has important implications for stream restoration efforts seeking to connect the channel and the broader riparian zone, and for the development of accurate sediment budgets and predictions of sediment flux from a watershed.

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Section: Introductionmentioning

confidence: 99%

Joint isotopic mass balance: a novel approach to quantifying channel bed to channel margins sediment transfer during storm events

Underwood

Renshaw

Dade

et al. 2015

Earth Surf Processes Landf

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“…During long overwintering periods, plants are exposed to multiple environmental stresses, such as drought, flooding and ice cover (Bertrand & Castonguay 2003). In aquatic ecosystems associated with flooding, sedimentation can cause burial of aquatic plants by sand (Lowe et al 2010, Pan et al 2012. Previous studies have demonstrated that burial may change abiotic and biotic conditions such as light radiation (Brown 1997), temperature (Baldwin & Maun 1983, Zhang & Maun 1990) and activity of pathogens (van der Putten et al 1993, D'Hertefeldt & van der Putten 1998, thus modifying plant morpho logy and physiology, and affecting survival and growth (Little & Maun 1996, Maun 1998, Yu et al 2002.…”

Section: Introductionmentioning

confidence: 99%

Overwintering survival and regrowth of the invasive plant Eichhornia crassipes are enhanced by experimental warming in winter

Wang¹,

Yu²,

Xie³

et al. 2013

Aquat. Biol.

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The distribution of the invasive aquatic plant Eichhornia crassipes is considered to be limited by winter survival. Therefore, winter warming, as well as characteristics of overwintering organs, are expected to affect its distribution and survival. An experiment was conducted to analyze the effects of winter warming and stem base treatments (size or burial) on winter survival, regrowth and thus performance of floating or rooted plants of E. crassipes using a simulated warming system in a greenhouse. Winter warming significantly increased the percentage survival in both forms of the plant and facilitated its regrowth and clonal propagation. Stem base size played an important role in determining survival, regrowth and vegetative propagation. Moreover, water cover and sediment burial of stem bases facilitated overwintering. After winter survival, a larger fraction of the biomass of E. crassipes was allocated to shoots. These results suggest that, with climate warming, the invasive ability of E. crassipes will be enhanced, with distribution spreading to the north into central and north China, favouring plants with large stem bases. KEY WORDS: Biomass allocation · Sediment burial · Stem base · Survival rate · Winter warmingResale or republication not permitted without written consent of the publisher Aquat Biol 19: 45-53, 2013 improve the survival and growth of clonal plants under natural disturbances and environmental stresses (Madsen et al. 1993, Stuefer & Huber 1999, Dong et al. 2010. Therefore, greater stored resources contained in larger storage organs can be retranslocated to attached ramets and may facilitate the biomass accumulation and production of new ramets (Danckwerts & Gordon 1989, Baur-Höch et al. 1990, Stuefer & Huber 1999. Although sediment burial and storage organ size may contribute to winter survival and regrowth of plants during the overwintering period, their effects on overwintering of plants are still largely unknown, especially for invasive aquatic plants.Biomass allocation is a fundamental aspect of the competive ability of invasive aquatic plants, which often allocate a large fraction of their biomass to form canopy and to support the rapid spring growth that allows them to suppress other species (Madsen 1991, Sytsma & Anderson 1993. For instance, 2 invasive aquatic plants, water hyacinth Eichhornia crassipes and alligator weed Alternanthera philoxeroides, can form dense stands above the water surface that exclude almost all other species (Aston 1977, Julien & Bourne 1988. Villamagna & Murphy (2010) stated that greater allocation to shoots may enhance water hyacinth's ability to shade out other aquatic plants and algae in the water column. However, to our knowledge, little information exists on the effects of winter warming on the biomass allocation pattern of regrowth after winter survival for invasive aquatic plants.Eichhornia crassipes, originating from tropical South America, is a mat-forming aquatic plant with floating and rooted forms, and is one of the world's most preva...

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“…Sedimentation in combination with inundation can impose strong limitations on plant growth and survival7, which might be attributed to more severe oxygen depletion111522. Therefore, the morphological adjustments of wetland plants to simultaneous inundation and sedimentation are thought to be more pronounced than changes that occur under only one of these conditions2.…”

mentioning

confidence: 99%

High water level impedes the adaptation of Polygonum hydropiper to deep burial: Responses of biomass allocation and root morphology

Pan

Xie

Deng

et al. 2014

Sci Rep

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Many studies have investigated the individual effects of sedimentation or inundation on the performance of wetland plants, but few have examined the combined influence of these processes. Wetland plants might show greater morphological plasticity in response to inundation than to sedimentation when these processes occur simultaneously since inundation can negate the negative effects of burial on plant growth. Here, we evaluate this hypothesis by assessing growth of the emergent macrophyte Polygonum hydropiper under flooding (0 and 40 cm) and sedimentation (0, 5, and 10 cm), separately and in combination. Deep burial and high water level each led to low oxidation-reduction potential, biomass (except for 5-cm burial), and growth of thick, short roots. These characteristics were generally more significant under high water level than under deep burial conditions. More biomass was allocated to stems in the deep burial treatments, but more to leaves in the high water level treatments. Additionally, biomass accumulation was lower and leaf mass ratio was higher in the 40-cm water level + 10-cm burial depth treatment than both separate effects. Our data indicate that inundation plays a more important role than sedimentation in determining plant morphology, suggesting hierarchical effects of environmental stressors on plant growth.

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The effect of experimental inundation and sediment deposition on the survival and growth of two herbaceous riverbank plant species

Cited by 33 publications

References 45 publications

Joint isotopic mass balance: a novel approach to quantifying channel bed to channel margins sediment transfer during storm events

Joint isotopic mass balance: a novel approach to quantifying channel bed to channel margins sediment transfer during storm events

Overwintering survival and regrowth of the invasive plant Eichhornia crassipes are enhanced by experimental warming in winter

High water level impedes the adaptation of Polygonum hydropiper to deep burial: Responses of biomass allocation and root morphology

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