Phytoremediation potential and control of Phragmites australis as a green phytomass: an overview

Rezania, Shahabaldin; Park, Junboum; Rupani, Parveen Fatemeh; Darajeh, Negisa; Xu, Xin Xiang; Shahrokhi-Shahraki, Rahim

doi:10.1007/s11356-019-04300-4

Cited by 100 publications

(43 citation statements)

References 144 publications

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“…Although a number of recent reviews have demonstrated the role of emergent macrophytes as key components affecting the treatment performance of aquatic ecosystems with respect to NO 3 − removal (Rezania et al., ; Vymazal, ), only a few studies have examined the denitrification potential of vegetated sediments along a NO 3 − gradient (Table ). The V max values measured in P. australis vegetated sediments during summer (∼10,000 mg N m −2 d −1 ) were 10–60 times greater than the values measured for a variety of emergent plants incubated under similar water temperature conditions (Table ).…”

Section: Discussionmentioning

confidence: 99%

“…The degradation of this organic matter promotes the establishment of anaerobic microsites, which are suitable environments for NO 3 − reduction in the sediments (Schaller et al, 2004). Although a number of recent reviews have demonstrated the role of emergent macrophytes as key components affecting the treatment performance of aquatic ecosystems with respect to NO 3 − removal (Rezania et al, 2019;Vymazal, 2013a), only a few studies have examined the denitrification potential of vegetated sediments along a NO 3 − gradient ( Table 2).…”

Section: Discussionmentioning

confidence: 99%

“…ex Steud. (common reed, Poaceae), thanks to its cosmopolitan distribution and tolerance to high organic and nutrient loadings, has become by far the most frequently used plant in freewater-surface constructed wetlands around the world (Rezania et al, 2019;Vymazal, 2011;Vymazal, 2013a), with the exclusion of North America and Oceania, where it is an invasive species (Hunt et al, 2017;Roley, Tank, Grace, & Cook, 2018). Studies examining several plant species representing different ecological traits have identified P. australis as a species particularly effective at removing N from various types of wastewaters (Alldred & Baines, 2016;Brisson & Chazarenc, 2009;Vymazal, 2013b).…”

Section: Introductionmentioning

confidence: 99%

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Nitrate availability affects denitrification in Phragmites australis sediments

et al. 2020

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Understanding relationships between an increase in nitrate (NO3−) loading and the corresponding effects of wetland vegetation on denitrification is essential to designing, restoring, and managing wetlands and canals to maximize their effectiveness as buffers against eutrophication. Although Phragmites australis (Cav.) Trin. ex Steud. is frequently used to remediate nitrogen (N) pollution, no information is available on how NO3− concentration may affect plant‐mediated denitrification. In the present study, denitrification was measured in outdoor vegetated and unvegetated mesocosms incubated in both summer and winter. After spiking the mesocosms with NO3− concentrations typical of agricultural drainage water (0.7−11.2 mg N L−1), denitrification was quantified by the simultaneous measurement of NO3− consumption and dinitrogen gas (N2) production. Although denitrification rates varied with vegetation presence and season, NO3− availability exerted a significant positive effect on the process. Vegetated sediments were more efficient than bare sediments in adapting their mitigation potential to an increase in NO3−, by yielding a one‐order‐of‐magnitude increase in NO3− removal rates, under both summer (743−6007 mg N m−2 d−1) and winter (43−302 mg N m−2 d−1) conditions along the NO3− gradient. Denitrification was the dominant sink for water NO3− in winter and only for vegetated sediments in summer. Nitrification likely contributed to fuel denitrification in summer unvegetated sediments. Since denitrification rates followed Michaelis–Menten kinetics, P. australis‐mediated depuration may be considered optimal up to 5.0 mg N L−1. The present outcomes provide experimentally supported evidence that restoration with P. australis can work as a cost‐effective means of improving water quality in agricultural watersheds.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nitrate availability affects denitrification in Phragmites australis sediments

et al. 2020

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“…With clonal reproduction, it shows a strong phenotypic plasticity and ecological adaptability [13][14][15]. However, current studies on Phragmites australis mainly focus on their physiological and biochemical characteristics [16][17][18], biological responses to environmental factors [19,20], the trade-offs between vegetative and sexual reproduction [17,21], intraspecies relationships [22], ecosystem function and economic value [23][24][25]. There are few studies on the spatial distribution pattern of Phragmites australis in salt marsh wetlands, which could prevent us from understanding the ecological adaptation strategies of clonal plants.…”

Section: Introductionmentioning

confidence: 99%

Fine-Scale Distribution Patterns of Phragmites australis Populations Across an Environmental Gradient in the Salt Marsh Wetland of Dunhuang, China

Jiao

Liu

et al. 2020

Sustainability

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The spatial distribution pattern of plants often reflects their ecological adaptation strategy and is formed by their long-term interaction with environmental factors. In this paper, the clonal plant, Phragmites australis, was investigated across environmental gradients, including the wet zone, the transitional zone and the desert zone of the salt marsh wetland of Dunhuang, China. The characteristics and influencing factors of their fine-scale spatial distribution patterns were studied by point pattern analysis, redundancy analysis and simple linear regression. The results show that: (1) the spatial distribution pattern of Phragmites australis changes from aggregation to non-aggregation (random and regular distribution) from the wet zone to the desert zone. (2) The soil water content, pH and salinity all affect Phragmites australis’ spatial distribution intensity. Simple linear regression reveals that the water content in each soil layer, the pH of the deep soil layer and the salinity of the surface and deep soil layers are the main soil conditions of Phragmites australis’ spatial distribution pattern. (3) Phragmites australis’ population characteristics and clonal characteristics also have significant effects on its spatial distribution intensity. Specifically, the intensity of its spatial distribution pattern is significantly positively correlated with its cover, frequency, density, height, biomass, node number, ramet number and stem diameter (p < 0.01), while it is significantly negatively correlated with its rhizome internode length, spacer length and branch angle (p < 0.01). This research clarified the relationship between the spatial distribution pattern of Phragmites australis with soil environmental factors, plant clonal characteristics and population characteristics. The results provide a theoretical basis for understanding the ecological adaptation mechanism of clonal plants and protecting the sustainability of fragile and sensitive inland river wetland ecosystems.

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“…As well as the previous plants mentioned, the use of Phragmites Australis represents an alternative for the remediation of local liabilities close to Peruvian active and abandoned mines. This species can be found specially in Asia and Europe [14], but its extension reaches Australia, New Zealand, North America, and South America, in cold and tropical regions [15]. Phragmites Australis is part of a genus that is composed by six types of plants whose grasses vary from 2 to 6 meter [16], and it has the tendency to live in zones close to rivers, lakes and wetlands [17].…”

Section: Introductionmentioning

confidence: 99%

Removal of heavy metals using a wetland batch system with Carrizo (Phragmites Australis)

Guzmán

Romero

Flores

et al. 2020

Preprint

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One of the greatest environmental issues related to the development of the mining activity is the generation of Acid Mine Drainage (AMD). This effluent generated by active and abandoned mines in Peru produces multiple discussions about the role of the industry for a sustainable development. Many methods have been developed for AMD treatment, being wetlands a good option for heavy metal removal. In this sense, removal of heavy metal by using laboratory constructed wetlands with Phragmites Australis was studied. During a 9-day period the variation of different physicochemical parameters and heavy metals concentrations was recorded. The pH decreased to a constant value of 8.24 after the sixth day. The electrical conductivity presented a slight variation from 1 to 1.33 µS cm-1 on the ninth day. Moreover, fluctuating values of Dissolved Oxygen and Turbidity were observed. A reduction between 69% and 93% of ammonia nitrogen (NH3-N) was registered. Cu concentration was reduced in 68% and 87%; Zn concentrations dropped in 53% and 95%; and Pb was reduced in 20% and 55%. It was concluded that Phragmites Australis can be an alternative in the treatment of the contaminants produced by AMD.

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Phytoremediation potential and control of Phragmites australis as a green phytomass: an overview

Cited by 100 publications

References 144 publications

Nitrate availability affects denitrification in Phragmites australis sediments

Nitrate availability affects denitrification in Phragmites australis sediments

Fine-Scale Distribution Patterns of Phragmites australis Populations Across an Environmental Gradient in the Salt Marsh Wetland of Dunhuang, China

Removal of heavy metals using a wetland batch system with Carrizo (Phragmites Australis)

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