Effect of aquatic macrophyte growth on landscape water quality improvement

Zhang, Hengfeng; Zhao, Yixi; Yin, Hang; Wang, Yuanyuan; Li, Huixian; Wang, Zhanshen; Geng, Yongbo; Liang, Wenyan; Wang, Hongjie

doi:10.1007/s11356-018-2421-4

Cited by 7 publications

(4 citation statements)

References 44 publications

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“…In conclusion, the combination of multiple plant species remarkably impedes the escalation of turbidity in eutrophic water bodies, maintaining a clearer water state more effectively than individual plant species alone. These findings align with the study conducted by Zhang et al [ 51 ].…”

Section: Discussionsupporting

confidence: 93%

Purification Effect of Water Eutrophication Using the Mosaic System of Submerged–Emerged Plants and Growth Response

Chang,

Xu,

Zhang

et al. 2024

Plants

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Aquatic plants play a crucial role in the sustainable management of eutrophic water bodies, serving as a valuable tool for water purification. However, the effectiveness of using aquatic plants for improving water quality is influenced by landscape considerations. In practical applications, challenges arise concerning low purification efficiency and compromised aesthetic appeal when utilizing plants for water purification. To address these issues, this study aimed to examine the impact of aquatic plants on the purification of simulated landscape water bodies, specifically focusing on the effectiveness of the mosaic system of submerged–emerged plants in remediating eutrophic water bodies. Our findings indicated that individual aquatic plants exhibited limited efficacy in pollutant (total nitrogen, total phosphorus, ammonia nitrogen, and chemical oxygen demand) removal. However, when combined in appropriate proportions, submerged plants could enhance species growth and improve the purification efficiency of polluted water bodies. Notably, the mosaic system of submerged–emerged plants neither significantly promoted nor inhibited the growth of each other, but it effectively removed pollutants from the simulated water bodies and inhibited turbidity increase. The comprehensive evaluation ranked the purification capacity as Canna indica-submerged plants combination (C + S) > Thalia dealbata-submerged plants combination (T + S) > Iris pseudacorus-submerged plants combination (I + S) > Lythrum salicaria-submerged plants combination (L + S). Both C + S and T + S configurations effectively mitigated the rise of water turbidity and offered appealing landscape benefits, making them viable options for practical applications in urban landscape water bodies. Our study highlights that a submerged–emerged mosaic combination is a means of water purification that combines landscape aesthetics and purification efficiency.

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Section: Discussionsupporting

confidence: 93%

Purification Effect of Water Eutrophication Using the Mosaic System of Submerged–Emerged Plants and Growth Response

Chang,

Xu,

Zhang

et al. 2024

Plants

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“…Mainly because the reduction of ammonia nitrogen and nitrate nitrogen in eutrophic water bodies inhibits the rapid growth and reproduction of algae and plankton in aquatic ecosystems [27][28]; Because in the same water environment, aquatic plant have obvious competitive advantages. The large volume of aquatic plant can block the sunlight required for algae growth, which limits the growth of algae [29]. Aquatic plant can also inhibit the metabolism of algae in water bodies.…”

Section: Discussionmentioning

confidence: 99%

Research on Decontamination, Algae Inhibition, and Pollution Resistance of Emergent Plant System in Eutrophic Water

Shenglan,

Juan,

et al. 2024

Preprint

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With the development of cities and economic growth, the eutrophication of urban park landscape water has become a hot topic in environmental governance and research at home and abroad. Through the simulation experiment of water pollution, the effect of plant micro system built by aquatic plant on the ability of algae suppression in eutrophic water was studied. The results show that the micro system formed by different types of water plant can be reduced and stabilized the pH value of the rich and enriched water bodies. The pH of Lythrum salicaria L. group (Q) and Iris tectorum Maxim group (Y) group is the lowest. They are 7.34 and 7.48, which is significantly lower than the plant less group (CK). Different treatments have effectively reduced the nitrogen and phosphorus content in the water body. At the end of the experiment, the total nitrogen content of Y dropped from 9.49 to 3.21 mg∙L− 1, and the removal rate reached 66.2%; the total phosphorus removal rate of the water body phosphorus of different types of aquatic plants was 59.1%⁓81.3%, which was significantly higher than that of CK. Among them, the total phosphorus removal rate of Y treatment is the best, and it is significantly different from the CK. At the end of the experiment, chl a content in group Y was the lowest which was 6.6 mg∙L− 1. It decreased by 37.1% and 54.1% compared to the initial value and CK, respectively. It showed significant differences compared to other treatments (P < 0.05). At the same time, the content of proline and malondialdehyde in plants of Y, Q, and Nelumbo SP. group(H) significantly increased in eutrophic water, with group Y plants showing the highest increase, with increases of 28.6% and 39.8%, respectively. Different micro-systems formed by different water plants can improve water quality conditions and inhibit the reproduction of algae in the water. Among them, the effect of planting Iris tectorum Maxim group is the best.

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“…Increased intensity corresponds to higher compound concentrations. Peaks B and X (Figure 9a,b) belong to the aromatic protein region, containing amino acids such as tyrosine and tryptophan [37]. Peaks B, C, X, and Y (Figure 9a,b) observed in the emission wavelengths 300 to 345 nm are related to protein-like compounds.…”

Section: Discussionmentioning

confidence: 99%

“…The compounds present in two E. densa aqueous extracts were investigated using a 3D EEM created using a fluorescence spectrophotometer (LS 45, Perkin Elmer, Waltham, MA, USA). The principle of a fluorescence spectrophotometer is that the molecules in the sample absorb light energy at an extreme speed (~10 −8 s) at certain wavelengths and produce emission light with greater wavelengths than the excitation wavelengths [37]. Since the excitation and emission wavelengths of every compound are unique and fixed [38], this method is widely utilized to identify the various compounds in solutions.…”

Section: Three-dimensional Excitation-emission Matrix (3d Eem)mentioning

confidence: 99%

Inhibitory Effect of Aqueous Extracts from Egeria densa Planch. on Cyanobacteria Microcystis aeruginosa (Kützing) Lemmermann Growth

Wijesinghe,

Senavirathna,

Fujino

2023

Hydrobiology

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This study aimed to investigate the allelopathic effect of live Egeria densa Planch. and its aqueous extracts in inhibiting the cyanobacterium Microcystis aeruginosa (Kützing) Lemmermann through a possible growth inhibition pathway. Under coexistence, the presence of live E. densa reduced the growth of M. aeruginosa by 48% compared to when M. aeruginosa was alone. Consequently, we prepared two separate aqueous extracts with distilled water: one from E. densa plants collected from monocultures, and the other from E. densa plants collected from co-cultivation with M. aeruginosa. At a concentration of 0.5 g/L, both extracts successfully suppressed the growth of M. aeruginosa throughout the 5-day exposure period. The extracts obtained from E. densa plants grown in a combined culture with M. aeruginosa showed significant growth-inhibiting capabilities compared to the extracts obtained from E. densa monoculture (p < 0.05). They showed 22% more growth inhibition compared to cultures exposed to monoculture extracts at day 5, indicating that the production of allelochemicals in E. densa was induced during co-existence with cyanobacteria. However, the higher concentrations (2 and 4 g/L) of both extracts did not effectively exhibit a successful inhibitive ability, possibly due to the presence of high nutrient concentrations, specifically PO43−, which may be potentially suppressing the activity of allelochemicals. Further studies are recommended in identifying the specific allelochemicals and exploring their practical implementation in the field.

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Effect of aquatic macrophyte growth on landscape water quality improvement

Cited by 7 publications

References 44 publications

Purification Effect of Water Eutrophication Using the Mosaic System of Submerged–Emerged Plants and Growth Response

Purification Effect of Water Eutrophication Using the Mosaic System of Submerged–Emerged Plants and Growth Response

Research on Decontamination, Algae Inhibition, and Pollution Resistance of Emergent Plant System in Eutrophic Water

Inhibitory Effect of Aqueous Extracts from Egeria densa Planch. on Cyanobacteria Microcystis aeruginosa (Kützing) Lemmermann Growth

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