Study on the influence of soil microbial community on the long-term heavy metal pollution of different land use types and depth layers in mine

Zhao, Xingqing; Huang, Jian; Jin, Lu; Sun, Yu

doi:10.1016/j.ecoenv.2018.11.136

Cited by 263 publications

(71 citation statements)

References 52 publications

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“…Besides, the study of Shizishan mining area also obtained the similar observations that vegetation restoration samples were far away from the mining samples (Zhao, Huang, Lu, & Sun, 2019). Surprisingly, we further found that the soil bacterial community in RP had a tendency toward NF, which proved our hypothesis to some extent.…”

Section: Soil Microbial Communities Response To Different Treatmentssupporting

confidence: 79%

Response of soil environment factors and microbial communities to phytoremediation with Robinia pseudoacacia in an open‐cut magnesite mine

et al. 2020

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Overexploitation of magnesium has caused serious environmental pollution, and the ecological restoration of magnesite mines has attracted increasing attention in China. The aim of this study was to assess the effects of phytoremediation with Robinia pseudoacacia (RP) on soil quality and microbial communities in magnesite mines. Here, soil samples were collected from restored areas (R. pseudoacacia), natural forest (NF), and unrestored areas (CK), and the soil microbial communities were assessed by Illumina high-throughput sequencing. Phytoremediation with R. pseudoacacia could alleviate soil alkalization and contribute to the accumulation of soil nutrients. A total of 531,329 effective 16S rRNA and 596,344 valid Internal Transcribed Spacer rRNA gene sequences were obtained, which were classified into 30 bacterial and 12 fungal phyla. The predominant bacterial and fungal phyla were Proteobacteria and Ascomycota, respectively. Bacterial diversity indices of RP were higher than those of the CK, both of which were lower than those in the NF site. While, fungal Chao1 and ACE (abundance-based coverage estimator) indices of RP were higher than those of the CK and even surpassed those in the NF site. Soil microbial communities significantly differed among different treatments, and the effects of soil factors on microbial communities were comprehensive and not determined by a single factor. Generally, these results indicated that phytoremediation with R. pseudoacacia could effectively improve the soil environment of the abandoned magnesium mine, which provide useful insights and practical references for the suitable species that would be planted on magnesite mine for restoration.

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Section: Soil Microbial Communities Response To Different Treatmentssupporting

confidence: 79%

Response of soil environment factors and microbial communities to phytoremediation with Robinia pseudoacacia in an open‐cut magnesite mine

et al. 2020

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“…Yin et al [63] find in their research a decrease in the diversity of the microbial community due to long-term heavy metal pollution. In view of the above, it can be assumed that in accordance with the findings of Zhao et al [48] and Xu et al [64], heavy metals are fundamental factors affecting the diversity of microbial communities. At the same time, the authors pointed out that when the community was exposed to heavy metal pollution, the diversity suddenly decreased, but on the contrary resistant microorganisms adapted to new habitats and increased in large quantities, thereby resulting in a change in the structure of the microbial community.…”

Section: Degree Of Contamination (C D )supporting

confidence: 58%

“…Very Soil organic matter (SOM) is one of the main factors controlling the physical, chemical, and biological properties of soil and plays an important role in soil hygiene (immobilization of heavy metals and organic pollutants) [46]. Recent research has unequivocally confirmed the key role of organic carbon in the sorption of inorganic and organic contaminants [47], and the presence of organic substances can inhibit metal absorption from soil solution and reduce metal mobility and bioavailability [43,48,49]. In the study area, SOM values ranged from 1.4 to 9.8%, indicating that the soil humus supply is moderate to very good.…”

Section: Degree Of Contamination (C D )mentioning

confidence: 99%

Soil Quality and Heavy Metal Pollution Assessment of Iron Ore Mines in Nizna Slana (Slovakia)

Fazekašová

Fazekaš

2020

Sustainability

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Mining activities have resulted in the existence of dumps, which generally present a perpetual danger of moving and transforming toxic elements. The experimental study was carried out in Nizna Slana (Slovakia) where the main source of emission was the iron-ore mining–processing factory focused on siderite mining. Siderit from Nizna Slana is highly ferrous with an increased level of the Mn content. Among the undesirable impurities on the deposit are mainly As, S, Pb, and Zn. According to the environmental regionalization of the Slovak Republic, the surveyed area represents a region with a slightly disturbed environment. The BIOLOG® Eco plates method was used for ecotoxicological evaluation of contaminated soils, where soil enzymes (acidic and alkaline phosphatase and urease) were also monitored in soils and soil contamination was evaluated according to Hakanson (1980). Based on the results obtained, it can be concluded that the content of Hg, Cd, Cr, Cu, As, Fe, Mn, and Mg is above the toxicity level. As, Fe, Mn, and Mg are the most serious pollutants in the area under investigation, and their pronounced excess indicates contamination, where harmfulness and toxicity can be expected. Based on the evaluation of the contamination factor and the degree of contamination, the soils in the emission field of old mining works are very highly to slightly contaminated with heavy metals. The experimental results in the real environment showed that the activity of soil enzymes showed considerable differences, and, regarding the functional diversity of soil microorganisms, we have not seen significant spatial variability.

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“…As seen, Proteobacteria (42.8–79.5%), Acidobacteria (1.8–16.5%), Firmicutes (0.9–41.9%), and Chloroflexi (1.0–10.6%) were dominant phyla with high relative abundances in all of the soil sample, which was consistent with the results shown in LEfSe analysis. These predominant phyla also obtained in other metal(loid)s contaminated soil, such as paddy soil, mining sites, and sediment [ 37 , 38 , 39 , 40 ], which indicated these phyla might be closely related to metal(loid)s-contaminated soil. For example, Liu et al also found that Proteobacteria (33.0–96.7%), Actinobacteria (0.3–6.9%), Firmicutes (0.0–5.8%), and Chloroflexi (0.0–13.1%) dominated the indigenous soil microbial communities at a chromium salt factory [ 41 ].…”

Section: Resultsmentioning

confidence: 78%

Spatial Distribution of Toxic Metal(loid)s and Microbial Community Analysis in Soil Vertical Profile at an Abandoned Nonferrous Metal Smelting Site

Yang

Wang

Guo

et al. 2020

IJERPH

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In this study soils at different depths were collected in a Zn smelting site located in Zhuzhou City, China, in order to understand toxic metal(loid)s distribution and microbial community in vertical soil profile at a smelting site. Except Soil properties and metal(loid)s content, the richness and diversity of microbial communities in soil samples were analyzed via high-throughput Illumina sequencing of 16s rRNA gene amplicons. The results showed that the content of As, Pb, Cu, Cd, Zn, and Mn was relatively high in top soil in comparison to subsoil, while the concentration of Cr in subsoil was comparable with that in top soil due to its relative high background value in this soil layer. The bioavailability of Cd, Mn, Zn, and Pb was relative higher than that of As, Cr, and Cu. The diversity of soil microbial communities decreased with increasing depth, which might be ascribed to the decrease in evenness with increase in depth duo to the influence by environmental conditions, such as pH, TK (total potassium), CEC (cation exchange capacity), ORP (oxidation reduction potential), and Bio-Cu (bioavailable copper). The results also found Acidobacteria, Proteobacteria, Firmicutes, and Chloroflexi were dominant phyla in soil samples. At the genus level, Acinetobacter, Pseudomonas, and Gp7 were dominant soil microorganism. Besides, Environmental factors, such as SOM (soil organic matter), pH, Bio-Cu, Bio-Cd (bioavailable cadmium), and Bio-Pb (bioavailable lead), greatly impacted microbial community in surface soil (1–3 m), while ORP, TK, and AN concentration influenced microbial community in the subsoil (4–10 m).

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Study on the influence of soil microbial community on the long-term heavy metal pollution of different land use types and depth layers in mine

Cited by 263 publications

References 52 publications

Response of soil environment factors and microbial communities to phytoremediation with Robinia pseudoacacia in an open‐cut magnesite mine

Response of soil environment factors and microbial communities to phytoremediation with Robinia pseudoacacia in an open‐cut magnesite mine

Soil Quality and Heavy Metal Pollution Assessment of Iron Ore Mines in Nizna Slana (Slovakia)

Spatial Distribution of Toxic Metal(loid)s and Microbial Community Analysis in Soil Vertical Profile at an Abandoned Nonferrous Metal Smelting Site

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