Phytostabilization of coal mine overburden waste, exploiting the phytoremedial efficacy of lemongrass under varying level of cow dung manure

Pandey, Bhanu; Singh, Siddharth; Roy, Lal Bahadur; Shekhar, Sameer; Singh, Ranjeet Kumar; Prasad, B. Durga; Singh, Krishna Kant

doi:10.1016/j.ecoenv.2020.111757

Cited by 19 publications

(5 citation statements)

References 53 publications

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“…There is substantial evidence that compost and biochar can increase soil fertility status and a plant's resistance to stress in degraded environments (Antonious, 2018;Pandey et al, 2021;Ren et al, 2021;Roy et al, 2021b). However, less is known about the impact of the coupling effect of water (W), CMC and BC on the morphological, physiological and biochemical growth responses of O. viciifolia planted on coal-mined spoil.…”

Section: Introductionmentioning

confidence: 99%

Cattle manure compost and biochar supplementation improve growth of Onobrychis viciifolia in coal-mined spoils under water stress conditions

Roy

Núñez‐Delgado

Kader

et al. 2022

Environmental Research

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Surface mining is a critical anthropogenic activity that significantly alters the ecosystem, while the use of appropriate revegetation techniques can be considered an important and feasible strategy in the way to improve the ecosystem services of degraded land. In the present study, we carried out a pot experiment to investigate the effects of three different variables on morpho-physiological and biochemical parameters of Onobrychis viciifolia to assess the capability of this species to be used for restoration purposes. Specifically, the variables studied were: (a) water (W) regime, working at five values as regards field capacity (FC) (i.e., 80% FC = highest, 72% FC = high, 60% FC = moderate, 48% FC = low, and 40% FC = very-low dose); and (b) rates of cattle manure compost (CMC) and wood biochar (BC) (weight/weight ratio), working at five rates (i.e., 4.0% = highest, 3.2% = high, 2.0% = moderate, 0.8% = low, and 0% = either no-CMC or no-BC dose). In addition, soil physical-chemical properties and enzyme activities were also investigated at the end of the experimental period. It was found that morphological growth attributes such as plant height, maximum root length, and dry biomass significantly increased with W, CMC and BC applications. Compared to control, moderate-to-high W, CMC and BC doses (W 80 CMC 2 BC 2 ) increased net photosynthesis rate (by 42%), stomatal conductance (by 50%), transpiration rate (by 29%), water use efficiency (by 10%), chlorophyll contents (by 73%), carotenoid content (by 81%), leaf relative water content (by 33%) and leaf membrane stability index (by 30%). Under low-W content, the application of CMC and BC enhanced osmotic adjustments by increasing the content of soluble sugar and the activities of superoxide dismutase, catalase, peroxidase and ascorbate peroxidase, decreasing the oxidative stress, as verified by low levels of hydrogen peroxide, superoxide anion, malondialdehyde and proline contents in leaf tissues. Moreover, application of W, CMC and BC significantly improved soil water holding capacity, available nitrogen, phosphorus and potassium, urease and catalase activities, which facilitate plant growth. These results would aid in designing an appropriate strategy for achieving a successful revegetation of O. viciifolia, providing optimum doses of W (64% field capacity), CMC (2.4%) and BC (1.7%), with the final aim of reaching ecological restoration in arid degraded lands.

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Section: Introductionmentioning

confidence: 99%

Cattle manure compost and biochar supplementation improve growth of Onobrychis viciifolia in coal-mined spoils under water stress conditions

Roy

Núñez‐Delgado

Kader

et al. 2022

Environmental Research

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“…It is established that this method improves the quality of the soil and accelerates the restoration of vegetation. Bolan [144] describes phytoextraction (which includes the absorption and translocation of heavy metals by plants) and phytostabilization (plants and soil additives are used to immobilize heavy metals by the absorption and accumulation by roots, shoots, or deposition in the rhizosphere) as phytoremediation stages [145]. Masha [146] additionally distinguishes rhizofiltration and phyto-volatilization, noting the effectiveness of phytoextraction.…”

Section: Methods Of Reducing the Impact Of Coal Enterprises On The En...mentioning

confidence: 99%

An Overview of Carbon Footprint of Coal Mining to Curtail Greenhouse Gas Emissions

et al. 2022

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Despite the trend of a transition to “clean” energy, the coal industry still plays a significant role in the global economy. The constant need for raw materials and energy for production leads to an environmental crisis—an increase in the content of greenhouse gases in the atmosphere, especially in the mining regions. The purpose of this study was to analyze the impact of the carbon footprint on the environment and to study ways to reduce the negative impact of coal mining enterprises on the ecology. To analyze the chosen topic, the available reviews and research articles on the impact of the carbon footprint of coal mining enterprises, and the ways to reduce it and restore the biodiversity of wastelands, were used. It was found out that a complete ban on the extraction and use of coal in the industry will not lead to the desired result. The main ways to reduce the negative impact of coal mining enterprises on the environment were considered. The most promising direction for reducing the carbon footprint is the restoration of the vegetation cover by phytoremediation methods and the creation of carbon landfills in reclaimed territories in technogenically polluted coal mining regions.

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“…Finally, the translocation factor (TF) was calculated as the ratio of PTE concentration in vegetative aerial structures (leaves and stems) to those in roots (TF = C above ground / C root ), with TF values > 1 indicating that the plants translocate metals effectively from roots to aerial parts. Plants with a BCF and TF above 1 are appropriate for phytoextraction purposes, whereas when only the BCF exceeds 1 they show phytostabilization potential (Nazli et al, 2020;Pandey et al, 2021;Wahsha et al, 2012).…”

Section: Accumulation Of Metal(loid)s In Plant Tissuesmentioning

confidence: 99%

Phytoremediation Potential of Native Herbaceous Plant Species Growing on a Paradigmatic Brownfield Site

Matanzas

Afif

Díaz

et al. 2021

Water Air Soil Pollut

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Phytomanagement techniques using native species allow the recovery of contaminated soils at low cost and circumvent the ecological risks associated with the use of non-native species. In this context, a paradigmatic brownfield megasite highly contaminated by As and Pb was sampled in order to analyze soil–plant interactions and identify plant species with phytoremediation potential. A survey was first carried out in a 20-ha area to obtain an inventory of species growing spontaneously throughout the site. We then performed another survey in the most polluted sub-area (1 ha) within the site. Pseudototal concentrations of contaminants in the soil, aerial parts of the plants, and roots were measured by ICP-MS. A detailed habitat classification was done, and a specific index of coverage was applied by means of a 1-year quadrat study in various sampling stations. Results converged in the selection of six herbaceous species (Dysphania botrys, Lotus corniculatus, Lotus hispidus, Plantago lanceolata, Trifolium repens, Medicago lupulina). All of these plants are fast-growing, thereby making them suitable for use in phytostabilization strategies. Furthermore, they are all easy to grow and propagate and are generally self-sustaining. All six plants showed accumulation factors below 1, thus revealing them as pseudomethallophytes and excluders. However, L. hispidus and M. lupulina showed translocation capacity and are considered worthy of further study.

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Phytostabilization of coal mine overburden waste, exploiting the phytoremedial efficacy of lemongrass under varying level of cow dung manure

Cited by 19 publications

References 53 publications

Cattle manure compost and biochar supplementation improve growth of Onobrychis viciifolia in coal-mined spoils under water stress conditions

Cattle manure compost and biochar supplementation improve growth of Onobrychis viciifolia in coal-mined spoils under water stress conditions

An Overview of Carbon Footprint of Coal Mining to Curtail Greenhouse Gas Emissions

Phytoremediation Potential of Native Herbaceous Plant Species Growing on a Paradigmatic Brownfield Site

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