Comparative Soil Metal Analyses in Sudbury (Ontario, Canada) and Lubumbashi (Katanga, DR-Congo)

Narendrula, R.; Nkongolo, K. K.; Beckett, Peter

doi:10.1007/s00128-011-0485-7

Cited by 62 publications

(29 citation statements)

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“…Logging and ore smelting led to a large scale of SO 2 (sulphur dioxide) emissions and metal contamination (copper, Cu; iron, Fe; nickel, Ni and zinc, Zn) [1–5]. These have resulted in damaged ecosystems with reduced plant growth and population diversities within the region [2,3,5]. Remediation projects were initiated to restore the affected lands and to decrease industrial emissions.…”

Section: Introductionmentioning

confidence: 99%

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Microbial Response to Soil Liming of Damaged Ecosystems Revealed by Pyrosequencing and Phospholipid Fatty Acid Analyses

Narendrula-Kotha

Nkongolo

2017

PLoS ONE

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AimsTo assess the effects of dolomitic limestone applications on soil microbial communities’ dynamics and bacterial and fungal biomass, relative abundance, and diversity in metal reclaimed regions.Methods and ResultsThe study was conducted in reclaimed mining sites and metal uncontaminated areas. The limestone applications were performed over 35 years ago. Total microbial biomass was determined by Phospholipid fatty acids. Bacterial and fungal relative abundance and diversity were assessed using 454 pyrosequencing. There was a significant increase of total microbial biomass in limed sites (342 ng/g) compared to unlimed areas (149 ng/g). Chao1 estimates followed the same trend. But the total number of OTUs (Operational Taxonomic Units) in limed (463 OTUs) and unlimed (473 OTUs) soil samples for bacteria were similar. For fungi, OTUs were 96 and 81 for limed and unlimed soil samples, respectively. Likewise, Simpson and Shannon diversity indices revealed no significant differences between limed and unlimed sites. Bacterial and fungal groups specific to either limed or unlimed sites were identified. Five major bacterial phyla including Actinobacteria, Acidobacteria, Chloroflexi, Firmicutes, and Proteobacteria were found. The latter was the most prevalent phylum in all the samples with a relative abundance of 50%. Bradyrhizobiaceae family with 12 genera including the nitrogen fixing Bradirhizobium genus was more abundant in limed sites compared to unlimed areas. For fungi, Ascomycota was the most predominant phylum in unlimed soils (46%) while Basidiomycota phylum represented 86% of all fungi in the limed areas.ConclusionDetailed analysis of the data revealed that although soil liming increases significantly the amount of microbial biomass, the level of species diversity remain statistically unchanged even though the microbial compositions of the damaged and restored sites are different.Significance and Impact of the studySoil liming still have a significant beneficial effects on soil microbial abundance and composition > 35 years after dolomitic limestone applications.

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Section: Introductionmentioning

confidence: 99%

“…This liming was followed by land fertilization, grass and legume seeding [1,2]. In addition, since 1979, 12 million trees have been planted to complete the reclamation process [2,3,5]. …”

Section: Introductionmentioning

confidence: 99%

Microbial Response to Soil Liming of Damaged Ecosystems Revealed by Pyrosequencing and Phospholipid Fatty Acid Analyses

Narendrula-Kotha

Nkongolo

2017

PLoS ONE

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“…For example, in the present study the extractable Cu, Fe, Mg and Ni were determined using the method described by Gavlak et al (1994). Recent analysis of the samples from the same sites using the method described by Abedin et al (2012) resulted in much lower level of bioavailable elements specially for Cu (Narendrula et al, 2012;Nkongolo et al, 2013). Detailed information about reaction kinetics of the mobilisation and immobilisation process of heavy metals in soil and the importance of mass flow and diffusion for the availability of metals are still needed.…”

Section: Ajesmentioning

confidence: 99%

“…The mining, roasting and smelting of these elements have caused disastrous effects on the vegetation and overall environment (Amiro and Courtin, 1981;Gratton et al, 2000;Nkongolo et al, 2008;Vandeligt et al, 2011;Narendrula et al, 2012;. The effects have caused areas to become semi-barren to completely barren and studies on these outcomes have found sulfur dioxide Science Publications AJES emissions and metal particulates in soil to be the source.…”

Section: Introductionmentioning

confidence: 99%

Mobility of Heavy Metals in Plants and Soil: A Case Study From a Mining Region in Canada

Mehes-Smith¹

2013

American Journal of Environmental Sciences

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Understanding the dynamic of metals in soil and plantsis essential for ecosystem management and risks assessment of environmental pollution and sustainability.The main objective of the present study is to determine the mobility of Ni, Cu, Fe, Mg and Zn in soil and their translocation in D. cespitosa plants in a mining region in Northern Ontario.The total amount of Cu, Ni, Fe, Mg and Zn were significantly higher in the top horizon (LFH) compared to the adjacent layer Ae. The vertical distribution of metals in soil varied with the type of metals. The results of this study indicated that only a small portion of total metal was bioavailable to plants. The enrichment factor values for the targeted elements were far above the value of contamination resulting in high availability and distribution of metals in soil. The average bioconcentration/bioaccumulation factors (metal concentration ratio of plant roots to soil) was high and varied from 3.1 to 40 for Cu, 24.5 to 91.6 for Fe, 18.2 to 398.6 for Mg, 10.3 to 75.5 for Ni and 24.9 to 73 for Zn. The translocation factor values were very low for the five metals. They ranged from 0.05 to 0.46 for Cu, 0.03 to 0.1 for Fe, 0.28 to 1.48 for Mg, 0.15 to 0.38 for Ni and 0.68 to 1.16 for Zn. Based on existing classification, Deschampsia. cespitosa is an excluder as it has high levels of metals in the roots but with a shoot/root ratio less than 1. This plant has a high potential for phytoextraction of metals from Northern Ontario soils.

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“…Literature data report of numerous places in the world where Ni exceeds the permissible limit. For example, the Ni concentration of the soil was 1600-2150 mg kg −1 at Sudbury smelting area in Canada (Adamo et al 2002;Narendrula et al 2012), 303 mg kg −1 at Plovdiv non-ferrous metal smelter in Bulgaria (Bacon and Dinev 2005), 267 mg kg −1 around the Selebi Phikwe Cu-Ni mine in Botswana (Ngole and Ekosse 2012), 212 mg kg −1 at the former sludge disposal site in Denmark (Algreen et al 2014) and 122 mg kg −1 at the area of a former waste incineration plant in Czech Republic (Kacalkova et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation potential of Phalaris arundinacea, Salix viminalis and Zea mays for nickel-contaminated soils

Korzeniowska

Stanislawska-Glubiak

2018

Int. J. Environ. Sci. Technol.

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The aim of this study was to evaluate the usefulness of Phalaris arundinacea, Salix viminalis and Zea mays to the phytoremediation of the soil contaminated with nickel. A 2-year microplot experiment was carried out with plants growing on Ni-contaminated soil. Microplots (1 m 2 × 1 m deep) were filled with Haplic Luvisols soil. Simulated soil contamination with Ni was introduced in the following doses: 0-no metals, Ni 1 -60, Ni 2 -100 and Ni 3 -240 mg kg −1 . The phytoremediation potential of plants was evaluated using a tolerance index, bioaccumulation factor, and translocation factor. None of the tested plants was a species with high Ni phytoremediation potential. All of them demonstrated a total lack of usefulness for phytoextraction; however, they can be in some way useful for phytostabilization. Z. mays accumulated large amounts of Ni in the roots, which made it useful for phytostabilization, but, at the same time, showed little tolerance to this metal. For this reason, it can be successfully used only on soils medium-contaminated with Ni, where a large yield decrease did not occur. Its biomass may be safely used as cattle feed, as the Ni transfer from roots to shoots was strongly restricted. P. arundinacea and S. viminalis accumulated too little Ni in the roots to be considered as typical phytostabilization plants. However, they may be helpful for phytostabilization due to their high tolerance to Ni. These plants can grow in the soil contaminated with Ni, acting as a protection against soil erosion or the spread of contamination.

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Comparative Soil Metal Analyses in Sudbury (Ontario, Canada) and Lubumbashi (Katanga, DR-Congo)

Cited by 62 publications

References 13 publications

Microbial Response to Soil Liming of Damaged Ecosystems Revealed by Pyrosequencing and Phospholipid Fatty Acid Analyses

Microbial Response to Soil Liming of Damaged Ecosystems Revealed by Pyrosequencing and Phospholipid Fatty Acid Analyses

Mobility of Heavy Metals in Plants and Soil: A Case Study From a Mining Region in Canada

Phytoremediation potential of Phalaris arundinacea, Salix viminalis and Zea mays for nickel-contaminated soils

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