A review on plant-microbial interactions, functions, mechanisms and emerging trends in bioretention system to improve multi-contaminated stormwater treatment

Mehmood, Tariq; Gaurav, Gajendra Kumar; Liu, Cheng; Klemeš, Jiří Jaromír; Usman, Muhammad; Bokhari, Awais; Lu, Jie

doi:10.1016/j.jenvman.2021.113108

Cited by 54 publications

(11 citation statements)

References 162 publications

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“…Vegetation absorbs and dissipates energy, and the biomass aids in microbial processes. Plants directly uptake potential pollutants (e.g., nutrients and trace metals) (Mehmood et al 2021). Vegetation also plays a significant role in the water budget and associated nutrient budgets in bioretention practices (Nocco et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Effects of Rock Covering on Underlying Engineered Media in Bioretention Practices in Middle Tennessee, USA

Curry,

Ludwig,

Essington

2024

Contemporary Water Research

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Bioretention practices have become a common way to protect natural waterways in urban and suburban landscapes across the United States. However, optimal design, implementation, operation, and maintenance are still in need of study. A field survey of 52 bioretention practices was conducted in Davidson County, Tennessee, to address research questions related to operation and maintenance. A suite of site conditions were documented, such as size, signs of erosion, and dominant surface cover. Samples were collected from the surface of the engineered media layer and analyzed for organic matter content and bulk density. Vegetation was described in terms of dominant species and canopy cover. On average, the organic matter content of media under plant‐based mulch cover was significantly greater than that under rock cover (p = 0.002). Bulk density of the surface media is strongly and inversely correlated to organic matter content; bulk density did not generally vary with bioretention area age and was highly variable within treatments. On average, the bulk density of the media under the plant‐based mulch cover was significantly less than that under the rock cover. Media under the composite treatments had similar bulk density to both the plant‐based mulch (p = 0.233) and the rock covers (p = 0.132). Plant canopy did not surpass 70% in practices with bulk density values above 1.55 g/cm3. These results suggest that consideration should be made regarding the tradeoffs between utilizing rock coverings and potential for plant establishment impacts.

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Section: Discussionmentioning

confidence: 99%

Effects of Rock Covering on Underlying Engineered Media in Bioretention Practices in Middle Tennessee, USA

Curry,

Ludwig,

Essington

2024

Contemporary Water Research

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“…In GR, rainfall retention is namely influenced by (i) the rainfall intensity and duration [89][90][91]; (ii) the substrate depth and other physical properties [51,89,90,92]; (iii) the vegetation [93]; and (iv) the humidity of the substrate, which can be related to the saturation point [19,51,89,94]. In addition, the interactions between vegetation and substrate influence water retention, since root systems change the physical conditions of the substrate, namely the soil density and global porosity [15].…”

Section: Hydrological Performancementioning

confidence: 99%

Hydrological Analysis of Green Roofs Performance under a Mediterranean Climate: A Case Study in Lisbon, Portugal

et al. 2023

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In this paper, the hydrological performance of eight pilot green roofs (GR) installed in Lisbon, Portugal, under a Mediterranean climate is analyzed. The pilot units were installed at Instituto Superior Técnico campus of Lisbon University. The pilots present different plant species and different substrate types, with some of the units incorporating recycled construction and demolition waste (RCW). The green roofs pilots’ hydrologic performance was evaluated through the simulation of artificial precipitation events between March 2021 and July 2021. Considering the results obtained, it can be concluded that the inclusion of RCW in the substrate composition did not hinder the development of vegetation or the hydrological performance of GR. The results showed a rainfall water retention per event ranging from 37% to 100%, with an average rainfall retention of about 81%. The runoff delay ranged from 2 to 18 min, and the peak attenuation ranged from 30 to 100%. The results indicated that previous substrate moisture strongly influences the hydrological performance of GR. As the inclusion of RCW in the substrate composition promotes a more effective drainage of the substrate during dry conditions, it is considered that RCW may have positive impacts on GR’s hydrological performance.

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“…There are multiple physiological mechanisms involved in the growth and development, phytoremediation ability, and tolerance enhancement processes of PGPMs. The interactions between plants and microbes form mutually beneficial relationships where the microbes play a critical role in the plants’ adaptation to a toxic environment and stimulate the growth of the plants, thus augmenting phytoremediation or abiotic stress tolerance [ 9 ]. For example, plants support hydrocarbon-degrading microorganisms through their rhizosphere effects; these are helpful for phytoremediation in the root zone [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Considering that plant growth-promoting microorganisms (PGPMs) have been known for decades to enhance plant health and increase productivity [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ], the questions are “what is the added value for PGPM incorporation in vertical farming or hydroponics?” and “what is the best mode of use considering a soil-free system?”…”

Section: Introductionmentioning

confidence: 99%

The Role of Plant Growth-Promoting Microorganisms (PGPMs) and Their Feasibility in Hydroponics and Vertical Farming

Dhawi

2023

Metabolites

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There are many reasons for the increase in hydroponics/soil-free systems in agriculture, and these systems have now advanced to the form of vertical farming. The sustainable use of space, the reduction in water use compared to soil-based agriculture, the lack of pesticides, the ability to control nutrient inputs, and the implementation of user-friendly technology for environmental control and harvesting are all factors that have made the global market for vertical farming predicted to reach more than USD 10.02 billion by 2027. By comparison, soil-based agriculture consumes 20 times more water, and some agricultural practices promote soil deterioration and cause environmental pollution. Plant growth-promoting microorganisms (PGPMs) have been used extensively in traditional agriculture to enhance plant growth, environmental stress tolerance, and the efficacy of phytoremediation in soil-based farming. Due to the controlled atmosphere in hydroponics and vertical farms, there is strong potential to maximize the use of PGPMs. Here, we review the leveraging of plant growth-promoting microorganism mechanisms in hydroponics and vertical farming. We recommend a synchronized PGPM treatment using a biostimulant extract added to the hydroponic medium while also pre-treating seeds or seedlings with a microbial suspension for aquaponic and aeroponic systems.

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A review on plant-microbial interactions, functions, mechanisms and emerging trends in bioretention system to improve multi-contaminated stormwater treatment

Cited by 54 publications

References 162 publications

Effects of Rock Covering on Underlying Engineered Media in Bioretention Practices in Middle Tennessee, USA

Effects of Rock Covering on Underlying Engineered Media in Bioretention Practices in Middle Tennessee, USA

Hydrological Analysis of Green Roofs Performance under a Mediterranean Climate: A Case Study in Lisbon, Portugal

The Role of Plant Growth-Promoting Microorganisms (PGPMs) and Their Feasibility in Hydroponics and Vertical Farming

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