Mixtures of macrophyte growth forms promote nitrogen cycling in wetlands

Choudhury, Maidul I.; McKie, Brendan G.; Hallin, Sara; Ecke, Frauke

doi:10.1016/j.scitotenv.2018.04.193

Cited by 36 publications

(33 citation statements)

References 51 publications

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“…There was no difference in total biomass among beds, thus no overyielding, and no change in CE in response to number of species in plant beds for either above-or belowground biomass. These results followed the negative findings from studies [4,6] but was contrary to the theory verification in [5], although all of these studies were also testing CE on species poor and relative small aquatic plant beds. Furthermore, no change in SE was present with increasing species number in our study, suggesting that no single species was dominating and causing overyielding in multi-species plant beds [9].…”

Section: Discussionsupporting

confidence: 62%

“…Previous work in species-rich grasslands (greater than 20 plant species in 9 Â 9 m plots) has supported the theory by showing positive relationships between species richness and ecological functions such as nutrient uptake rates and primary production [2,3]. For submerged plant communities, only three studies have tested this theory [4][5][6] with mixed results. These three experiments tested for overyielding (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Submerged freshwater plant communities do not show species complementarity effect in wetland mesocosms

et al. 2018

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It is a generally accepted theory that ecological functions are enhanced with increased diversity in plant communities due to species complementarity effects. We tested this theory in a mesocosm study using freshwater submerged plant beds to determine if increasing species number caused overyielding and species complementarity. We applied a maximum of four species in the plant beds corresponding to the typical species number in natural freshwater plant beds. We found no clear effects of species number (1–4) on biomass production and thus no conclusive overyielding and complementarity effect. This may be explained by low species differentiation among the four species in plant traits relevant for resource acquisition in freshwater, or that other species interactions, e.g. allelopathy, were inhibiting overyielding. The existing knowledge on species complementarity in aquatic plant communities is sparse and inconclusive and calls for more research.

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Section: Discussionsupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Submerged freshwater plant communities do not show species complementarity effect in wetland mesocosms

et al. 2018

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“…The results obtained by Gałczyńska (2012) and Choudhury et al (2018) indicate the suitability of use of Hippuris vulgaris in hydrophyte systems for nitrogen removal from used waters. The efficacy of contaminants removal for nitrogen was, on average, 94.1% (Gałczyńska 2012) and 85% in single species systems including Hippuris vulgaris (Choudhury et al 2018). Gałczyńska et al (2009) found that with the decrease in growth rate of the plant in the autumn period, the efficacy of removing contaminants from wastewater decreases.…”

Section: The Use Of Hippuris Vulgaris In Purification Of Used Watersmentioning

confidence: 84%

“…In turn, Choudhury et al (2018) found that in hydrophyte systems based on two aquatic species, one of them being Hippuris vulgaris, the efficacy of nitrogen removal was from 2 to 6% higher than that observed in single species systems with Hippuris vulgaris -on average 89%. The results obtained by Gałczyńska (2012) and Choudhury et al (2018) indicate the suitability of use of Hippuris vulgaris in hydrophyte systems for nitrogen removal from used waters. The efficacy of contaminants removal for nitrogen was, on average, 94.1% (Gałczyńska 2012) and 85% in single species systems including Hippuris vulgaris (Choudhury et al 2018).…”

Section: The Use Of Hippuris Vulgaris In Purification Of Used Watersmentioning

confidence: 90%

“…Hippuris vulgaris is characterised by significant capacity for development in variable trophic conditions, including municipal wastewater where oxygenation properties of the plant are particularly favoured (Gałczyńska 2012;Huang et al 2012;Gałczyńska et al 2013;Choudhury et al 2018). It is able to adapt to different rates of water flow.…”

Section: Characteristics Of Common Mare's Tail Habitatmentioning

confidence: 99%

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COMMON MARE'S TAIL (Hippuris vulgaris L.) IN THE ASSESSMENT OF WATER STATUS AND THEIR PHYTOREMEDIATION

Gałczyńska¹,

Milke²,

Gamrat³

et al. 2019

Folia Pomer. Univ. Technol. Stetin., Agric., Aliment., Pisc., Z

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Pollution of aquatic ecosystems continues to be a problem in developed countries, resulting in a reduction in the biodiversity of organisms associated with these habitats. In many countries, macrophyte indices are used to assess surface water pollution. They apply both to determining the ecological status of lakes and rivers. The presence of aquatic plants informs, among others, on the level of water eutrophication, and the analysis of the content of metals in plants indicates the pollution of water ecosystems with metals. Failure to reach the key objective of the Water Framework Directive, i.e. good water status, by 2015 forces the search for new ways of water management, including cheap and environmentally friendly methods of treatment of contaminated and used waters. The results of research on the possibilities and limitations in the functioning of individual species of aquatic plants in polluted and used waters allow for the rational selection of plants for phytoremediation of aquatic ecosystems. The aim of this review was to discuss the biological features of common mare's tail and its habitat and to determine the plant's ability to develop in waters contaminated with biogenic compounds and metals, and to determine its ability to uptake metals measured by the effectiveness of removing contaminants. It was found that mare's tail occurs in waters with variable concentration of biogenic compounds and metals. Irrespectively of the concentration of nitrogen, phosphorus and potassium in the plant growth medium, each introduction of lead, zinc, copper, manganese and iron into the plant growth medium, in quantities corresponding to the limit values for V class water quality, caused their increased uptake by mare's tail. The accumulation of these elements reflects the state of water pollution with metals. Nevertheless, water pollution with some metals causes the biomass of the plant to be reduced. Due to high efficiency of removing various impurities by mare's tail, the plant can be used in the hydrophytic systems of wastewater treatment but its best use is for the purpose of after-treatment of municipal wastewater.

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Wetlandscape (dis)connectivity and fragmentation in a large wetland (Haiderpur) in west Ganga plains, India

Singh

Sinha

Mishra

et al. 2022

Earth Surf Processes Landf

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Wetlands are dynamic ecosystems that require continuous monitoring and assessment of degradation status to design strategies for their sustainable management.While hydrology provides the primary functional control for the wetland ecosystem, the loss of landscape connectivity influences wetland degradation in a major way as it leads to fragmentation. This article aims to integrate hydrogeomorphic and ecological concepts for the assessment of degradation status and its causal factors for a large wetland in the western Ganga plains, India, the Haiderpur, using a wetlandscape approach. We have used a remote-sensing-based approach, which offers a powerful tool for assessing and linking cross-scale structures, functions, and controls in a wetlandscape. The Haiderpur, a Ramsar site since December 2021, is an artificial wetland located on the right bank of the Ganga River wherein the inflows are controlled by a barrage constructed on the Ganga River apart from smaller tributaries flowing in from the north. A novel aspect of this work is the integration of river dynamics and its connectivity to the wetlandscape to understand the spatiotemporal variability in the waterspread area in the wetland. In this work, we have developed an integrated wetlandscape assessment approach by evaluating wetland's geomorphic and hydrological connectivity status for the period 1993-2019 (25 years) across three different spatial scalesregional, catchment, and wetland. We have highlighted the ecological implications of connectivity and patch dynamics for developing sustainable wetland management plans.

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Mixtures of macrophyte growth forms promote nitrogen cycling in wetlands

Cited by 36 publications

References 51 publications

Submerged freshwater plant communities do not show species complementarity effect in wetland mesocosms

Submerged freshwater plant communities do not show species complementarity effect in wetland mesocosms

COMMON MARE'S TAIL (Hippuris vulgaris L.) IN THE ASSESSMENT OF WATER STATUS AND THEIR PHYTOREMEDIATION

Wetlandscape (dis)connectivity and fragmentation in a large wetland (Haiderpur) in west Ganga plains, India

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