Fractions of Cu, Cd, and enzyme activities in a contaminated soil as affected by applications of micro- and nanohydroxyapatite

Cui, Hongbiao; Zhou, Jing; Zhao, Qiudong; Si, Youbin; Mao, Jingdong; Fang, Guodong; Liang, Jiaping

doi:10.1007/s11368-013-0654-x

Cited by 103 publications

(45 citation statements)

References 45 publications

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“…1 shows that the H4 treatment level increased soil pH the most among all amendments, increasing soil pH by 2.34 units compared to the control. This result corresponds with the results of Cui [8], who reported that supplemental hydroxyapatite can enhance soil pH, and that the incremental increase is consistent with the amount of hydroxyapatite added. Treatment N4 also experienced an increase in soil pH, by 1.38 units.…”

Section: Resultssupporting

confidence: 91%

“…Many natural materials such as limestone, zeolite, hydroxyapatite, sepiolite, palyorskite, and red mud have been reported to effectively remediate soil contaminated with heavy metals [6][7][8][9][10]. Among these amendments, hydroxyapatite is considered one of the most effective natural materials in immobilizing heavy metals in soil [11,12].…”

mentioning

confidence: 99%

“…However, until now little research has been done comparing the effect of nano-and micro-hydroxyapatite (nHAP and mHAP) in remediating heavy metals-contaminated soils. It was hypothesized that nHAP was superior to mHAP in immobilizing heavy metals in soil due to its smaller particle size, larger surface area, and more chemical activity sites [8].…”

mentioning

confidence: 99%

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Effects of Combined Amendments on Growth and Heavy Metal Uptake by Pakchoi (Brassica chinensis L.) Planted in Contaminated Soil

Li¹,

Zhu²,

Guo³

2015

Pol. J. Environ. Stud.

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Section: Resultssupporting

confidence: 91%

mentioning

confidence: 99%

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Effects of Combined Amendments on Growth and Heavy Metal Uptake by Pakchoi (Brassica chinensis L.) Planted in Contaminated Soil

Li¹,

Zhu²,

Guo³

2015

Pol. J. Environ. Stud.

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“…The enzymatic activity of soil is considered the most important indicator allowing monitoring of the effect of farming, agricultural practices, and the presence of contaminants on the soil condition (Oleszczuk et al, 2014). Enzymatic activity also reflects the indirect capability of contaminated soil of self-purification (Cui et al, 2013). Currently, there are several mechanisms known that can explain the increase in the enzymatic activity of soil fertilised with biochar.…”

Section: Resultsmentioning

confidence: 99%

“…The presence of potentially toxic heavy metals and polycyclic aromatic hydrocarbons (PAHs) in biochar as well as its usually strong alkaline reaction can pose a serious threat to the soil quality and its biological life in particular. Studies of Cui et al (2013) and Yang et al (2016) clearly show that there is a close correlation between the concentration of heavy metals, pH, and enzymatic activity of soil. Also research of Wu et al (2013) and our previous study indicated that the use of biochar obtained from various feedstocks may have different effects on enzymatic activity and ecotoxicity of soil.…”

Section: Introductionmentioning

confidence: 94%

Effect of wheat and Miscanthus straw biochars on soil enzymatic activity, ecotoxicity, and plant yield

Mierzwa–Hersztek¹,

Gondek²,

Klimkowicz‐Pawlas³

et al. 2017

International Agrophysics

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The variety of technological conditions and raw materials from which biochar is produced is the reason why its soil application may have different effects on soil properties and plant growth. The aim of this study was to evaluate the effect of the addition of wheat straw andMiscanthus giganteusstraw (5 t DM ha−1) and biochar obtained from this materials in doses of 2.25 and 5 t DM ha−1on soil enzymatic activity, soil ecotoxicity, and plant yield (perennial grass mixture with red clover). The research was carried out under field conditions on soil with the granulometric composition of loamy sand. No significant effect of biochar amendment on soil enzymatic activity was observed. The biochar-amended soil was toxic toVibrio fischeriand exhibited low toxicity toHeterocypris incongruens. Application of wheat straw biochar andM. giganteusstraw biochar in a dose of 5 t DM ha−1contributed to an increase in plant biomass production by 2 and 14%, respectively, compared to the soil with mineral fertilisation. Biochars had a more adverse effect on soil enzymatic activity and soil ecotoxicity toH. incongruensandV. fischerithan non-converted wheat straw andM. giganteusstraw, but significantly increased the grass crop yield.

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Short‐Term Aging of Pod‐Derived Biochar Reduces Soil Cadmium Mobility and Ameliorates Cadmium Toxicity to Soil Enzymes and Tomato

Ogunkunle

Falade

Oyedeji

et al. 2021

Enviro Toxic and Chemistry

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Contamination of agricultural soil with cadmium (Cd) has become a global concern because of its adverse effects on ecohealth and food safety. Soil amendment with biochar has become one of the phytotechnologies to reduce soil metal phyto-availability and its potential risks along the food chain. Biochar, derived from cocoa pod, was evaluated in soil Cd fractions (exchangeable, reducible, oxidizable, and residual) by modified Commission of the European Communities Bureau of Reference sequential extraction and its efficacy to ameliorate Cd toxicity to soil enzymes and leaf bioactive compounds. A pot experiment was conducted using Cd-spiked soil at 10 mg/kg with tomato (Solanum lycopersicum L.) at a biochar application rate of 1 and 3% (w/w) for 6 wk. The addition of biochar significantly reduced (p < 0.05) the exchangeable, reducible, and residual fractions by at least approximately 23%, with a consequential decrease in Cd root uptake and transport within tomato tissues. The activity of soil enzymes (catalase, dehydrogenase, alkaline phosphatase, and urease) was affected by Cd toxicity. However, with the exception of dehydrogenase, biochar application significantly enhanced the activity of these enzymes, especially at the 3% (w/w) rate. As for the secondary metabolites we studied, Cd toxicity was observed for glutathione, terpenoids, and total phenols. However, the biochar application rate of 1% (w/w) significantly ameliorated the effects of toxicity on the secondary metabolites. In conclusion, biochar demonstrated the potential to act as a soil amendment for Cd immobilization and thereby reduce the bioavailability of Cd in soil, mitigating food security risks.

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Fractions of Cu, Cd, and enzyme activities in a contaminated soil as affected by applications of micro- and nanohydroxyapatite

Cited by 103 publications

References 45 publications

Effects of Combined Amendments on Growth and Heavy Metal Uptake by Pakchoi (Brassica chinensis L.) Planted in Contaminated Soil

Effects of Combined Amendments on Growth and Heavy Metal Uptake by Pakchoi (Brassica chinensis L.) Planted in Contaminated Soil

Effect of wheat and Miscanthus straw biochars on soil enzymatic activity, ecotoxicity, and plant yield

Short‐Term Aging of Pod‐Derived Biochar Reduces Soil Cadmium Mobility and Ameliorates Cadmium Toxicity to Soil Enzymes and Tomato

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