Salt tolerance in Phragmites australis populations from coastal Mediterranean marshes

Mauchamp, André; Mesléard, François

doi:10.1016/s0304-3770(00)00140-6

Cited by 85 publications

(55 citation statements)

References 16 publications

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“…Due to the drawdown in May and the continuing evapotranspiration by the vegetation, EC in the highest zone increased to 25 mS m −2 (equivalent to salinity of 10 g l −1 ). Howard and Rafferty (2006) and Mauchamp and Mésleard (2001) showed a negative effect of salinity on the growth of Phragmites australis.…”

Section: Discussionmentioning

confidence: 96%

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: Discussionmentioning

confidence: 96%

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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“…The gradient of land-use intensity demonstrates the presence of dominant Phragmites australis in unmanaged places, and species typical of salt meadows (dominated by Juncus gerardi) in patches used as pastures or hay meadows. Phragmites australis is a saltresistant species that can grow in extremely saline sites (Mauchamp and Mésleard 2001;Piernik 2012). Therefore, we relate its presence to management rather than salinity, although in our study, salinity and management were of the same direction (as explained above).…”

Section: Discussionmentioning

confidence: 92%

Main Driving Factors for Seacoast Vegetation in the Southern and Eastern Baltic

et al. 2016

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This study aimed to determine the role of environmental factors in the pattern of vegetation related to marsh soils, which are rare in the Baltic coastal zone. It was assumed that the pattern of vegetation directly affected by seawater depends on seawater salinity, and in general reflects the decreasing salinity gradient of the Baltic Sea. The research of vegetation and soils (0-25 cm) has been undertaken on 11 selected sites along the Baltic seacoast in Germany, Poland and Estonia. According to TWINSPAN classification, five plant communities were distinguished: the Puccinellia maritima-Spergularia marina community, Juncus gerardi community, Agrostis stolonifera-Phragmites australisScirpus lacustris ssp. tabernaemontani community, Phragmites australis-Calystegia sepium community and Elymus repens community. A canonical correspondence analysis showed that the most important environmental factors influencing vegetation differentiation were: electrical conductivity of the saturation paste extract, hay/pasture management, redox potential, soil moisture and actual pH. In conclusion, the spatial distribution of the investigated vegetation and soil properties along the Baltic Sea shore were inconsistent with the spatial salinity gradient of the open surface seawater, but was significantly dependent on local conditions. This was confirmed by the highest soil salinity and most abundant occurrence of Salicornia europaea in Estonia.

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“…It was questioned why Run A reeds were able to survive under such a high salinity. Mauchamp demonstrated that 25-days of exposure to 15g・Cl-/L stopped reed growth, though the growth recovered after being flushed with fresh water [4]. Therefore, as mentioned in Figure-2-a, a high precipitation reduced the salinity inside of HSFs of both Run A and Run B.…”

Section: Growth Of Reedsmentioning

confidence: 84%

“…The high precipitation reduced the salinity inside of the HSFs. The salinity of the survival limit of a reed is reported within the range of 12-15g・Cl -/L [4,5]. As shown in Figure 2, the salinity of the inside of Run A was 15.0±3.4g Cl -/L and that of Run B was 9.3±1.9g Cl -/L.…”

Section: Salinity Of the Inside Of Constructed Wetlandsmentioning

confidence: 99%

“…Barr reported that P. australis could tolerate salinity to quite a high degree of up to 7.3g・Cl -/L for normal growth, surviving at up to 12.7g・ Cl -/L [3]. Mauchamp demonstrated that reed growth decreased as salinity increased (50% decrease at 4.6g・Cl -/L when compared to freshwater) and a 7-100% mortality depending on population, occurred at 9.1g・Cl -/ L and 12.1g ・Cl -/L [4]. Table 1.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Growth of Reeds on Evapotranspiration in Horizontal Subsurface Flow Constructed Wetlands

Yano¹,

Nakayama²,

Yamada³

et al. 2017

eer

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In this study, the influence of growth of reeds on evapotranspiration (ET) was estimated, and a commonly used meteorological estimate of potential evapotranspiration (PET) was compared with direct measurements of ET. The salinity of the inside of HSF of the raw leachate inflow was 15.0±3.4g Cl -/L and that of the double diluted inflow was 9.3±1.9g Cl -/L. Although the growth of reeds in the raw leachate inflow was impeded remarkably compared to that of the double diluted leachate inflow, the reeds in the double diluted inflow bed showed healthy growth. The difference in the salinity gave rise to large differences in the growth of the reed. The annual ET rates in the poor vegetation bed, the dense vegetation bed and the unplanted bed were 656.5mm, 2,334.3mm and 22.2mm, respectively. The difference of the growth of the reed provided a large difference in the ET rate. The annual PET estimated on the basis of the Hamon equation was 751.6mm. The PET rate was much lower compared to the ET rate in the dense vegetation bed. It was necessary to consider site-specific factors such as the growth of plants in the evaluation of the water budget in the HSFs.

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Salt tolerance in Phragmites australis populations from coastal Mediterranean marshes

Cited by 85 publications

References 16 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

Main Driving Factors for Seacoast Vegetation in the Southern and Eastern Baltic

Influence of Growth of Reeds on Evapotranspiration in Horizontal Subsurface Flow Constructed Wetlands

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