Apricot shell- and apple tree-derived biochar affect the fractionation and bioavailability of Zn and Cd as well as the microbial activity in smelter contaminated soil

Ali, Amjad; Shaheen, Sabry M.; Guo, Di; Li, Yiman; Xiao, Ran; Wahid, Fazli; Azeem, Muhammad; Sohail, Kamran; Zhang, Tao; Rinklebe, Jörg; Li, Ronghua; Zhang, Zengqiang

doi:10.1016/j.envpol.2020.114773

Cited by 95 publications

(28 citation statements)

References 69 publications

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“…5) and the subsequent decrease in Cd toxicity; (3) increased substrate availability and the release of accessible organic compounds (Karimi et al 2020); and (4) the provision of suitable microbial habitat (Xu et al 2018;Karimi et al 2020). Biochar also acts as a source of energy for soil microbes and facilitates their survival in contaminated soils (Ali et al 2020). Similar results were reported for PTE-contaminated soils amended with various biochars (Xu et al 2018;Tang et al 2020b).…”

Section: Discussionmentioning

confidence: 58%

“…For example, Xu et al (2020) reported that corn straw biochar reduced the availability of Cd in soil by transforming Cd into a state of lower availability. Ali et al (2020) found that the labile fractions of Cd in smeltercontaminated soil decreased after the addition of apricot shell-and apple tree-derived biochar; meanwhile, the soil recalcitrant fractions and microbial activity increased. Qiao et al (2019) reported that the ZVI-modified biochar decreased Cd availability in an alkaline paddy soil by enhancing the transformation of available Cd fractions into less available fractions.…”

Section: Introductionmentioning

confidence: 96%

“…The conversion of PTEs from labile fractions (exchangeable and carbonate bounded) to less-labile fractions (Fe-Mn oxide bounded, organically bounded, and residual) leads to PTE immobilization (Boostani et al 2019;Palansooriya et al 2020;Wang et al 2020). Previous studies have used different biochar amendments to stabilize Cd-contaminated soils (Ali et al 2020;Xu et al 2020). For example, Xu et al (2020) reported that corn straw biochar reduced the availability of Cd in soil by transforming Cd into a state of lower availability.…”

Section: Introductionmentioning

confidence: 99%

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Fe-Modified Common Reed Biochar Reduced Cadmium (Cd) Mobility and Enhanced Microbial Activity in a Contaminated Calcareous Soil

Moradi

Karimi

2020

J Soil Sci Plant Nutr

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The immobilization of soil cadmium (Cd) by biochar and modified biochar is an eco-friendly and cost-effective strategy. In the current study, the effect of raw biochar (BC) and iron-modified biochar (Fe-BC) derived from common reed on the fractionation and mobility of Cd was evaluated, as was its effect on soil microbial activity in contaminated calcareous soil. Treatments involved a combination of two factors: type of biochar (CK: Control, BC, and Fe-BC) and soil Cd concentration (0, 15, and 30 mg kg −1). Treatments were applied to the soil and incubated for 90 days. The application of both biochars increased soil pH and soil organic carbon content (16.6-48.0%), microbial biomass carbon (40.5-75.1%), basal respiration (16.6-48.0%), substrate-induced respiration (12.4-41.9), and dehydrogenase activity (25.5-102.1%), while it reduced diethylene-triamine pentaacetic acid (DTPA)extractable Cd (22.1-39.5%). The addition biochars, particularly Fe-BC, prominently decreased the concentration of exchangeable and carbonate fractions and increased the concentration of Fe-MnOx, as well as the organic and residual fractions of Cd in the soil. Moreover, relative to the control treatment, the incorporation of raw and Fe-modified biochar into 30 mg kg −1 Cd-spiked soil significantly decreased the Cd mobility factor (MF) value by 14.5 and 21.8%, respectively. Fe-modified biochar had a more significant impact than raw biochar on the immobilization of Cd in the soil, and its improved soil microbial activity to a greater extent. Overall, the findings indicate that Fe-modified biochar derived from common reed can immobilize Cd and improve soil microbial attributes in contaminated calcareous soil. Therefore, it can be used as an eco-friendly amendment for restoring Cdcontaminated calcareous soil.

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Section: Discussionmentioning

confidence: 58%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Fe-Modified Common Reed Biochar Reduced Cadmium (Cd) Mobility and Enhanced Microbial Activity in a Contaminated Calcareous Soil

Moradi

Karimi

2020

J Soil Sci Plant Nutr

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“…PTE bioavailability drives its biogeochemical behaviour in soil-plant systems, which plays an important role in PTE uptake by plants (Nejad et al, 2021). The most important factor affecting PTE bioavailability was soil chemical properties, such as soil pH, SOM, and nutrient content (Ali et al, 2020). In this study, all sampling sites had alkaline pH, which may be attributed to the impact of mining activities.…”

Section: Discussionmentioning

confidence: 70%

Accumulation of potentially toxic trace elements (PTEs) by native plant species growing in a typical gold mining area located in the northeast of Qinghai-Tibet Plateau

Wang

Xie

et al. 2021

Environ Sci Pollut Res

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Though gold mines provide signi cant economic bene ts to local governments, mining causes soil pollution by potentially toxic trace elements (PTEs) in mining areas, especially in the Qinghai-Tibet Plateau. Screening of native plant species from mining areas is now an effective, inexpensive, and ecofriendly method for the remediation of PTEs in situ. In the present study, we conducted experiments to assess the accumulation of As, Cd, Pb, and Zn in 12 native plant species growing on a typical gold mining area in Qinghai-Tibet Plateau. Our results showed that rhizosphere soils have high soil organic matter content, high levels of As, and moderate levels of Cd. G. pylzowianum accumulated relatively higher As in its shoots and exhibited TF higher than 1 for As (4.65), Cd (1.87), and Pb (1.36). P. saundersiana had BCF-S higher than 1 for Cd (4.52) and Pb (1.70), whereas its TF was higher than 1 for As, Cd, Pb, and Zn. These plant species also exhibit strong tolerance to these PTEs. Furthermore, E. nutans accumulated low levels of As, Cd, Pb, and Zn in their shoots and exhibited TF values lower than 1 for the four PTEs. Therefore, G. pylzowianum could be used for the in situ phytoextraction of As, and P. saundersiana can be used as an effective plant for Cd and Pb phytoextraction. E. nutans is better suited for the phytostabilisation of multiple PTEs. Our study is of signi cant importance for introducing native plant species to remediate PTE-contaminated soils, particularly As and Cd, and has a good potential for developing PTE phytoremediation strategies at mining sites. HighlightsAs was the prime pollutant in soils surrounding the gold mine.Phytoremediation of PTEs in 12 native plants was examined at a gold mining site. P. saundersiana had TF higher than 1 for all PTEs.

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“…It can also facilitate the biogeochemical cycle of nutrients, maintain soil structure, and produce the necessary compounds for microorganisms and plants (Gelsomino et al 2006;Topac et al 2009;Hu et al 2014). Many studies demonstrated that Cd had adverse effects on soil enzyme activities (Ali et al 2020). On the one hand, pollutants inhibit enzyme activity by silencing catalytic active groups that led to protein conformational denaturation.…”

Section: Effects Of S Indica On the Activities Of Soil Enzymes Under CD Stressmentioning

confidence: 99%

Combined Effects of Inoculating Serendipita Indica on Soybean Growth and Soil Health Under Cd Stress

Wang

Wei-dong

Fan

2021

Preprint

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Cadmium (Cd) pollution in the soil is a global environmental problem. Plants-microbial technology has been regarded as a potential technique for the remediation of Cd polluted soils. Here, we aimed to explore the combined effects of inoculating (Serendipita indica) S. indica on soybean growth and soil health under Cd stress. Therefore, a pot experiment was conducted to investigate the S. indica on soybean growth and the soil enzyme activities, pH and chemical forms of Cd in the soil under Cd 0, 10, 20, 30 mg/kg soil teatments. Results reflected that compared to non-inoculated ones, the application of S. indica can still enhance the dry weight (66.57%), shoot height (90.35%) and promote the net photosynthesis rate (72.18%), transpiration ratio (80.73%), and stomatal conductance (119.05%) photosynthesis of soybean under Cd 30 mg/kg soil. Furthermore, The pH, phosphatase (116.39%) and catalase (4.17%) activities in the S. indica treatments were increased under Cd 10 mg/kg soil. Meanwhile, inoculated S. indica treatments significantly shifted Cd from exchangeable fraction to other more stable fractions, primarily decreased Cd concentrations (23.66%) under Cd 20 mg/kg soil. The Cd pollution assessment in soil indicated that S. indica could effectively reduce Cd pollution in the Cd 10 mg/kg soil treatments. This work suggests that S. indica may be a potential method for not only promoting plant growth, but also relieving the phytotoxicity of Cd and remediating Cd contaminated soil.

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Apricot shell- and apple tree-derived biochar affect the fractionation and bioavailability of Zn and Cd as well as the microbial activity in smelter contaminated soil

Cited by 95 publications

References 69 publications

Fe-Modified Common Reed Biochar Reduced Cadmium (Cd) Mobility and Enhanced Microbial Activity in a Contaminated Calcareous Soil

Fe-Modified Common Reed Biochar Reduced Cadmium (Cd) Mobility and Enhanced Microbial Activity in a Contaminated Calcareous Soil

Accumulation of potentially toxic trace elements (PTEs) by native plant species growing in a typical gold mining area located in the northeast of Qinghai-Tibet Plateau

Combined Effects of Inoculating Serendipita Indica on Soybean Growth and Soil Health Under Cd Stress

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