Mcchanism of flood tolerance in reed, <i>Phragmites australis</i> (Cav.) Trin. ex Steudel

Gries, Corinna; Kappen, L.; Lösch, R.

doi:10.1111/j.1469-8137.1990.tb00429.x

Cited by 86 publications

(41 citation statements)

References 21 publications

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“…Hefting et al (2003) measured values up to 183 kg N ha −1 year −1 in a grassland riparian buffer zone with a water table just below sediment surface. The results of the denitrification measurements do not support the assumption that vegetation stimulates denitrification by aerating the soil via root gas exchange (Matsui and Tsuchiya 2006;Gries et al 1990). In our experiments vegetation presence had a negative influence on the denitrification rate.…”

Section: Discussioncontrasting

confidence: 44%

“…Nutrient concentrations may have been reduced by direct uptake by helophytes (Huet et al 2005). Another possibility is the oxidation of the sediment by root gas exchange (Matsui and Tsuchiya 2006;Gries et al 1990). A higher frequency of oxic microsites would increase nitrification rates (Tanner et al 1999;Patrick and Reddy 1976) and result in adsorption of phosphate to oxidized iron.…”

Section: Discussionmentioning

confidence: 99%

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Nutrient Cycling and Retention Along a Littoral Gradient in a Dutch Shallow Lake in Relation to Water Level Regime

Sollie

Verhoeven

2008

Water Air Soil Pollut

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Littoral zones are characterized by gradients in depth and vegetation biomass, influencing nutrient retention capacity. A field experiment was conducted in a Phragmites australis dominated littoral zone to investigate nutrient retention and its effect on surface water quality. Measurements were done in mesocosms where water levels could be manipulated. Nutrient status was investigated along a gradient perpendicular to the shore during two growing seasons, one with a stable water level and one with a gradually decreasing water level. Nutrient concentrations in sediment, soil pore water and surface water were significantly lower in the vegetated than in the unvegetated zone. The negative correlations of nutrients in sediment and water, with nutrient contents of the vegetation suggest a direct effect of the vegetation. Nutrient uptake and biomass of the vegetation was higher in continuously flooded soils than in seasonally emerging sediments higher along the littoral gradient, probably due to the increased salinity in drained zones. Denitrification rate was highest in the unvegetated zone and was positively related to water level. Flooded littoral zones did result in a higher nutrient retention than drained zones. On small scale, for an optimal nutrient retention a fluctuating regime is not necessarily better suited than a stable water level, but on a larger scale it can substantially increase the width of the vegetated zone. It is important to optimize conditions for helophyte growth since the positive effect of vegetation on nutrient retention, at least at local scale, has been demonstrated in this study.

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Section: Discussioncontrasting

confidence: 44%

Section: Discussionmentioning

confidence: 99%

Nutrient Cycling and Retention Along a Littoral Gradient in a Dutch Shallow Lake in Relation to Water Level Regime

Sollie

Verhoeven

2008

Water Air Soil Pollut

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“…One possibility is that increased oxygen availability stimulates microbial processes that would otherwise be retarded by cold. It is well documented that many wetland plant species release oxygen from their roots in varying amounts (Armstrong, 1971;Gries et al, 1990;Sorrell, 1999), and our results confirm this for many of the species studied. Because domestic wastewater has abundant organic carbon, treatment is often limited by oxygen, the most energetically favorable electron acceptor.…”

Section: Discussionsupporting

confidence: 79%

“…Armstrong (1971) and Howes and Teal (1994) found greater ROL at lower temperatures. Gries et al (1990) and Moog and Bruggemann (1998) found that enhanced ROL was associated with reduced root respiration at low temperatures.…”

Section: Discussionmentioning

confidence: 99%

Native Plant Material Selection for Water Treatment Wetlands

Taylor¹,

Hook²,

Zabinski³

2009

JASMR

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Treatment wetlands (TWs) are widely used for treating domestic, agricultural, and industrial wastewater, stormwater runoff, and acid mine drainage; natural wetlands are also exposed to these pollutant sources. Currently, few plant species are used in the majority of TWs, and these are often non-native and/or weedy. We are working to identify native species for year-round use in cold-region TWs, particularly the Rocky Mountain region, and explore the basis of differences in performance. In studies presented here, we evaluated chemical oxygen demand (COD) removal from simulated wastewater in microcosms planted with monocultures of 19 species. Experiments were conducted over one year at seasonal temperatures of 4-24°C. With some species and in unplanted controls, COD removal declined at cold temperatures during dormancy, as expected with normal temperature dependence of microbial processes. However, COD removal was constant across seasons with the majority of species. Average COD removal exceeded 90% for Carex aquatilis, C. bebbii, C. praegracilis, C. utriculata, Schoenoplectus acutus, Juncus arcticus, J. torreyi, and Deschampsia cespitosa; of these, only S. acutus is widely used. In contrast, the widely used (and frequently invasive) species T. latifolia, P. australis, and P. arundinacea were somewhat less effective, with average COD removals of 84%, 74%, and 83%, respectively. Redox, sulfate, and root oxygen loss measurements suggest that plant-mediated oxygen transfer may explain the ability of some species to offset the effect of temperature on microbial processes and maintain high COD removal in all seasons. Results indicate that many non-weedy, regionally native species may be candidates for use in TWs or for rehabilitation of natural wetlands exposed to certain pollutants. In addition to the species we studied, other Obligate Wetland and Facultative Wetland species of the Cyperaceae and Juncaceae merit investigation.

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“…Numerous studies have been carried out on morphology and physiology of Spartina and Phragmites individually (Gries et al 1990;Hellings and Gallagher 1992;Naidoo et al 1992;Hwang and Morris 1994;Armstrong et al 1996;Colmer et al 1996;Wijte and Gallagher 1996;Lissner and Schierup 1997;Chambers et al 1998). Few studies, however, have been carried out to examine whether and how the competitive outcome between Phragmites and Spartina is affected by the growing conditions.…”

Section: Introductionmentioning

confidence: 99%

Effects of growing conditions on the growth of and interactions between salt marsh plants: implications for invasibility of habitats

et al. 2006

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A common but often less tested explanation for the successful invasion of alien species is that invasive alien species outcompete their co-occurring natives, which may not always be the case. In this study, we established artificial environmental gradients in a series of pot experiments with controlled environments to investigate the effects of salinity, sediment type and waterlogging on the performance of and interactions between Phragmites australis (native) and Spartina alterniflora (alien), which generally co-exist in the saline intertidal zones of Chinese and American coasts. Significant effects of salinity and waterlogging were detected on biomass production and morphological characteristics of S. alterniflora and P. australis, and the competitive interactions between the two species were found to vary with all three environmental factors in our experiments. Relative Neighbor Effect (RNE) analyses indicate that competitive dominance of S. alterniflora occurred under the conditions of high salinity, sandy sediment and full immersion, whereas P. australis showed competitive dominance under the conditions of low salinity and non-immersion. Our results suggest that S. alterniflora might outcompete P. australis under conditions present in early salt marsh succession, which support the viewpoint that the outcomes of competition between co-occurring native and invasive alien plants depend on the growing conditions. The implication of this study is that in response to the environmental changes expected from seawater intrusion and sea-level rise, the range of S. alterniflora is expected to expand further in the Yangtze River estuary in the future.

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Mcchanism of flood tolerance in reed, Phragmites australis (Cav.) Trin. ex Steudel

Cited by 86 publications

References 21 publications

Nutrient Cycling and Retention Along a Littoral Gradient in a Dutch Shallow Lake in Relation to Water Level Regime

Nutrient Cycling and Retention Along a Littoral Gradient in a Dutch Shallow Lake in Relation to Water Level Regime

Native Plant Material Selection for Water Treatment Wetlands

Effects of growing conditions on the growth of and interactions between salt marsh plants: implications for invasibility of habitats

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