Effect of interspecific competition on the growth and nutrient uptake of three macrophytes in nutrient-rich water

Kankanamge, Champika Ellawala; Kodithuwakku, Hasini

doi:10.1007/s10452-017-9640-5

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…This agrees with our hypothesis that an increase in plant richness with the same growth form had little impact on water purification, further suggesting that it is the functional diversity, not the pure number of plant species that could facilitate the performance of plant communities (Geng et al, 2017). The key probably lies in antagonistic interspecific interactions when two species share a high level of similarities (Ellawala Kankanamge and Kodithuwakku, 2017). Hence, we also expected to see strong competition or even competitive exclusion in the combination treatment (Adler et al, 2018;Geng et al, 2019).…”

Section: Discussionsupporting

confidence: 86%

Both species richness and growth forms affect nutrient removal in constructed wetlands: A mesocosm experiment

Luo

Chen²,

Liu³

et al. 2023

Front. Ecol. Evol.

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IntroductionPlant richness is thought to improve the function of constructed wetlands (CWs), but most CWs are planted with monocultures, with only a few employed polycultures, which have drawn contradictory conclusions. We suppose functional diversity is the key to better performance of plant communities and hypothesize that CWs planted with diverse growth forms are superior in plant growth and nutrient removal.MethodsIn this study, six emergent plant species categorized into slender type (Schoenoplectus tabernaemontani, Typha orientalis), fan type (Iris sibirica, Acorus calamus) and large type (Canna indica and Thalia dealbata) were planted in monocultures, combinations (two species of the same growth form) and mixed polycultures (six species of three growth forms). We then compared how plant growth and nutrient uptake differed among treatments.ResultsIt showed that the polyculture considerably increased the removal of total nitrogen (TN) and total phosphorus (TP), but the combination did not outperform monoculture. High consistency in the patterns between underground biomass and total biomass indicated that plant roots were essential for nutrient consumption. Compared with slender and fan plants, the large plants had a greater biomass increase in polycultures, which greatly accelerated the absorption and assimilation of TN and TP.ConclusionOur study indicated that plant community with various growth forms reduced the intensity of interspecific competition, increased the functional diversity, and greatly enhanced the ability of pollutant removal. Our results also provide some suggestions for plant selection and combination designs in CWs.

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Section: Discussionsupporting

confidence: 86%

Both species richness and growth forms affect nutrient removal in constructed wetlands: A mesocosm experiment

Luo

Chen²,

Liu³

et al. 2023

Front. Ecol. Evol.

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“…For example, charophytes can reduce sediment resuspension [118], while the canopy forms (e.g., Myriophyllum spicatum and Potamogeton maackianus) are more beneficial for nutrient removal [113]. Of course, the species diversity of submerged macrophytes should also be appropriate, and an excess of species richness might not increase the purifying effect of macrophyte communities resulting from functional overlap and interspecific competition [136,137]. Zhang et al (2019) [138] and Liu et al (2020) [134] found that three species might be a threshold value of species richness for increasing the water transparency of lakes.…”

Section: Increasing Species Diversitymentioning

confidence: 99%

A Bibliometric Analysis of Lake Restoration with Submerged Macrophytes

Gao

2023

Water

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Submerged macrophytes have attracted increasing attention in lake restoration due to the importance of their structuring communities and stabilizing functions in lake ecosystems. However, there is still a lack of systematic reviews on lake restoration with submerged macrophytes. Thus, we performed a systematic review based on a bibliometric analysis via analyzing and visualizing 934 published works from 1996 to 2023 from the Web of Science core collection. Publication characteristics were summarized, and keyword co-occurrence networks, reference co-citation analysis, and keyword burst tests were conducted. Our results suggest that the increasing attention in this field has partly resulted from the many water treatments and scientific schemes in Europe, China, and the USA and extensive international cooperation. The development of this field was divided into three stages based on keyword bursts (e.g., early, turning, and recent stages). Alternative stable states and biomanipulation laid the foundations of this field in the early stage. Progress in the field was discussed based on four aspects, the influence of environmental factors on submerged macrophytes, theory and mechanisms, targets, and evaluation and methods. Therefore, our results provide a new and comprehensive understanding of lake restoration with submerged macrophytes.

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A native species does not prevent the colonization success of an introduced submerged macrophyte, even at low propagule pressure

et al. 2019

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Effect of interspecific competition on the growth and nutrient uptake of three macrophytes in nutrient-rich water

Cited by 7 publications

References 22 publications

Both species richness and growth forms affect nutrient removal in constructed wetlands: A mesocosm experiment

Both species richness and growth forms affect nutrient removal in constructed wetlands: A mesocosm experiment

A Bibliometric Analysis of Lake Restoration with Submerged Macrophytes

A native species does not prevent the colonization success of an introduced submerged macrophyte, even at low propagule pressure

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