Copper immobilization by biochar and microbial community abundance in metal-contaminated soils

Moore, Francisca; González, María-Eugenia; Khan, N.; Curaqueo, Gustavo; Sánchez-Monedero, Miguel Á.; Rilling, Joaquín I.; Morales, Esteban; Panichini, Marcelo; Mutis, Ana; Jorquera, Milko A.; Mejías, Jaime; Hirzel, Juan; Meier, Sebastián

doi:10.1016/j.scitotenv.2017.10.223

Cited by 55 publications

(11 citation statements)

References 49 publications

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“…Hence, Cu most likely represented the most toxic element in the studied CCA contaminated soil (Tardif et al, unpublished results) and bioavailable Cu determined with the P. fluorescens bioreporter used here has previously been shown to constitute an excellent predictor of Cu toxicity effects in soil bacterial communities (Nunes et al, 2016;Song et al, 2017). Our findings are also in accordance with a recent study showing that biochar amendment restored microbial activity in Cu contaminated soil (Moore et al, 2018). A number of factors, such as soil properties (e.g.…”

Section: Effects Of Soil Amendments On Soil Qualitysupporting

confidence: 92%

Assessment of biochar and zero-valent iron for in-situ remediation of chromated copper arsenate contaminated soil

Frick

Tardif

Kandeler

et al. 2019

Science of The Total Environment

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Highlights  Chromate copper arsenate (CCA) contaminated soils pose risks to the environment  In-situ stabilization of CCA contaminated soil was tested with biochar and ZVI  Soil remediation was evaluated based on chemical and microbiological techniques  Biochar reduced bioavailable (Cu bio), but not water-extractable Cu (Cu water)  Combination of biochar and ZVI most effectively reduced toxic effects of CCA

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Section: Effects Of Soil Amendments On Soil Qualitysupporting

confidence: 92%

Assessment of biochar and zero-valent iron for in-situ remediation of chromated copper arsenate contaminated soil

Frick

Tardif

Kandeler

et al. 2019

Science of The Total Environment

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“…It was known from several studies that the amendment of biochar can increase the abundances of bacteria, fungi, Bacillus spp., and Pseudomonas spp. (Moore et al, 2018;Wang et al, 2019). Similarly, we found that biochar of 1.2% increased the abundances of bacteria, fungi, Bacillus spp., and Pseudomonas spp.…”

Section: Effects Of Biochar and Intercropping On Tomato Rhizosphere Soil Microbial Communitiessupporting

confidence: 71%

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Xie

Gao

et al. 2021

Front. Microbiol.

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The application of biochar stimulates the activities of microorganisms that affect soil quality and plant growth. However, studies on the impacts of biochar mainly focus on a monoculture, its effects on interspecific interactions are rarely reported. Here, we investigated the impacts of biochar on tomato/potato–onion intercropped (TO) in a pot experiment. Tomato monoculture (T) and TO were treated with no, 0.3, 0.6, and 1.2% biochar concentrations in a pot experiment. Microbial communities from tomato rhizosphere soil were analyzed by quantitative PCR and Illumina MiSeq. The results showed that compared with the tomato monoculture, 0.6%TO and 1.2%TO significantly increased tomato yield in 2018. TO and 1.2%TO significantly increased plant height and dry weight in 2018 and 2019. Biochar treatments increased soil pH, decreased NO3--N and bulk density, and increased the absorption of N, P, and K by tomato. Bacterial and fungal abundances increased with an increase in biochar concentration, while Bacillus spp. and Pseudomonas spp. abundances showed an “increase-decrease-increase” trend. Biochar had a little effect on bacterial diversities but significantly lowered fungal diversities. TO, 0.6%TO, and 1.2%TO increased the potentially beneficial organisms (e.g., Pseudeurotium and Solirubrobacter) and lowered the potentially pathogenic organisms (e.g., Kribbella and Ilyonectria). Different concentrations of biochar affected the bacterial and fungal community structures. Redundancy analysis indicated that the bacterial community was strongly correlated with soil pH, NO3--N, and EC, while the fungal community was closely related to soil NO3--N and moisture. The network analysis showed that biochar and intercropping affected the symbiosis pattern of the microorganisms and increased the proportion of positive interactions and nitrifying microorganisms (Nitrospirae) in the microbial community. Overall, our results indicated that monoculture and intercropping with biochar improved soil physicochemical states and plant nutrient absorption, and regulated soil microbial communities, these were the main factors to promote tomato growth and increase tomato productivity.

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“…Dolomite application substantially decreased bioavailable Cu. The decrease in available Cu under higher pH has been previously reported in several studies (Kirchmann and Eskilsson, 2010;Moore et al, 2018;Senkondo, 2016).…”

Section: Discussionsupporting

confidence: 68%

Restoring effect of soil acidity and Cu on N2O emissions from an acidic soil

Shaaban

Peng

Bashir

et al. 2019

Journal of Environmental Management

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Copper immobilization by biochar and microbial community abundance in metal-contaminated soils

Cited by 55 publications

References 49 publications

Assessment of biochar and zero-valent iron for in-situ remediation of chromated copper arsenate contaminated soil

Assessment of biochar and zero-valent iron for in-situ remediation of chromated copper arsenate contaminated soil

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Restoring effect of soil acidity and Cu on N2O emissions from an acidic soil

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