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Yang B, Zhang H, Ke W, Jiang J, Xiao Y, Tian J, Zhu X, Zong L, Fang W. Effect of Soil Acidification on the Production of Se-Rich Tea. PLANTS (BASEL, SWITZERLAND) 2023; 12:2882. [PMID: 37571035 PMCID: PMC10420883 DOI: 10.3390/plants12152882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023]
Abstract
Selenium (Se)-enriched tea is a well-regarded natural beverage that is often consumed for its Se supplementation benefits. However, the production of this tea, particularly in Se-abundant tea plantations, is challenging due to soil acidification. Therefore, this study aimed to investigate the effects of changes in Se under acidified soil conditions. Eight tea plantation soil monitoring sites in Southern Jiangsu were first selected. Simulated acid rain experiments and experiments with different acidification methods were designed and soil pH, as well as various Al-ion and Se-ion concentrations were systematically determined. The data were analyzed using R statistical software, and a correlation analysis was carried out. The results indicated that as the pH value dropped, exchangeable selenium (Exc-Se) and residual selenium (Res-Se) were transformed into acid-soluble selenium (Fmo-Se) and manganese oxide selenium (Om-Se). As the pH increased, exchange state aluminum (Alex) and water-soluble aluminum (Alw) decreased, Fmo-Se and Om-Se declined, and Exc-Se and Res-Se increased, a phenomenon attributed to the weakened substitution of Se ions by Al ions. In the simulated acid rain experiment, P1 compared to the control (CK), the pH value of the YJW tea plantation decreased by 0.13, Exc-Se decreased by 4 ug mg-1, Res-Se decreased by 54.65 ug kg-1, Fmo-Se increased by 2.78 ug mg-1, and Om-Se increased by 5.94 ug mg-1 while Alex increased by 28.53 mg kg-1. The decrease in pH led to an increase in the content of Alex and Alw, which further resulted in the conversion of Exc-Se to Fmo-Se and Om-Se. In various acidification experiments, compared with CK, the pH value of T6 decreased by 0.23, Exc-Se content decreased by 8.35 ug kg-1, Res-Se content decreased by 40.62 ug kg-1, and Fmo-Se content increased by 15.52 ug kg-1 while Alex increased by 33.67 mg kg-1, Alw increased by 1.7 mg kg-1, and Alh decreased by 573.89 mg kg-1. Acidification can trigger the conversion of Exc-Se to Fmo-Se and Om-Se, while the content of available Se may decrease due to the complexation interplay between Alex and Exc-Se. This study provides a theoretical basis for solving the problem of Se-enriched in tea caused by soil acidification.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Wanping Fang
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China (H.Z.); (W.K.); (J.J.); (Y.X.); (J.T.); (X.Z.); (L.Z.)
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Zhang M, Jouquet P, Dai J, Xiao L, Du Y, Liu K, Motelica-Heino M, Lavelle P, Zhong H, Zhang C. Assessment of bioremediation potential of metal contaminated soils (Cu, Cd, Pb and Zn) by earthworms from their tolerance, accumulation and impact on metal activation and soil quality: A case study in South China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 820:152834. [PMID: 34999072 DOI: 10.1016/j.scitotenv.2021.152834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/15/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
This study was aimed to evaluate the potential of four earthworm species commonly found in South China for the bioremediation of soils contaminated by Cu, Cd, Pb and Zn. Survival rates and metal accumulation of Eisenia fetida, Amynthas morrisi, A. robustus and A. corticis and changes in soil physico-chemical properties were investigated in a 60-day incubation experiment with a metal-polluted soil. At the end of the experiment, the survival rates of E. fetida, A. morrisi and A. robustus were significantly higher than that of A. corticis. Principal component analysis showed that earthworm activity improved soil quality with the averaging soil quality index being 0.66, 0.64, 0.56, 0.53, and 0.12 for the A. corticis, A. morrisi, A. robustus, E. fetida, and control treatments, respectively. The highest total available Cd, Cu, and Pb in casts were found in the treatment with A. morrisi, and this species accumulated the smallest amount of metals. Results indicate that A. morrisi may be the best candidate for earthworm-assisted bioremediation of metal contaminated soils in South China.
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Affiliation(s)
- Menghao Zhang
- Key Laboratory of the Ministry of Agriculture for Arable Land Conservation in South China/Centre of Land consolidation and soil bioremediation, College of Natural Resources and Environment, South China Agricultural University, 510642 Guangzhou, China
| | - Pascal Jouquet
- Sorbonne Université, UPEC, CNRS, IRD, INRAE, Institut d'Ecologie et des Sciences de l'Environnement, IESS, 93143 Bondy, France
| | - Jun Dai
- Key Laboratory of the Ministry of Agriculture for Arable Land Conservation in South China/Centre of Land consolidation and soil bioremediation, College of Natural Resources and Environment, South China Agricultural University, 510642 Guangzhou, China
| | - Ling Xiao
- Key Laboratory of the Ministry of Agriculture for Arable Land Conservation in South China/Centre of Land consolidation and soil bioremediation, College of Natural Resources and Environment, South China Agricultural University, 510642 Guangzhou, China
| | - Yan Du
- Key Laboratory of the Ministry of Agriculture for Arable Land Conservation in South China/Centre of Land consolidation and soil bioremediation, College of Natural Resources and Environment, South China Agricultural University, 510642 Guangzhou, China
| | - Kexue Liu
- Department of Resources and the Urban Planning, Xinhua College of Sun Yat-sen University, Guangzhou 510520, China
| | | | - Patrick Lavelle
- Sorbonne Université, UPEC, CNRS, IRD, INRAE, Institut d'Ecologie et des Sciences de l'Environnement, IESS, 93143 Bondy, France
| | - Hesen Zhong
- Key Laboratory of the Ministry of Agriculture for Arable Land Conservation in South China/Centre of Land consolidation and soil bioremediation, College of Natural Resources and Environment, South China Agricultural University, 510642 Guangzhou, China
| | - Chi Zhang
- Key Laboratory of the Ministry of Agriculture for Arable Land Conservation in South China/Centre of Land consolidation and soil bioremediation, College of Natural Resources and Environment, South China Agricultural University, 510642 Guangzhou, China.
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Sun L, Gong P, Song K, Sun Y, Qin Q, Zhang H, Lv W, Xue Y. Combination application of elemental sulfur and earthworm increased the lead (Pb) uptake by ryegrass (Lolium perenne L.) in contaminated agricultural soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:23315-23322. [PMID: 34807382 DOI: 10.1007/s11356-021-17592-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
The phytoremediation efficiency is largely depends on the bioavailability of heavy metal in soil. The activity of earthworms and oxidation of elemental sulfur (S0) in soil has influence on heavy metal speciation transformation in soil. By conducting pot experiment, we examined the possibility of enhancing phytoextraction efficiency of lead (Pb) in soil by ryegrass (Lolium perenne L.) with application of both S0 and earthworms. Results showed that the addition of S0 decreased soil pH and increased soil CEC, while a slight trend of decrease for soil pH and increase for CEC was found with earthworm application. In soil treated with earthworms, the addition of S0 increased the concentration of DTPA-extractable Pb by 9.9~20.8%. The concentration of diffusive gradients in thin film (DGT)-extractable Pb was increased by 26.31~32.9% with S0 and earthworm addition. In soil treated with earthworms, the addition of S0 increased the concentration of Pb in shoots of ryegrass by 55.7~110.4% and the translocation factor of Pb in ryegrass was also increased by S0 addition. Our results suggested that the combination application of earthworms and S0 could be an effective way to enhance the remediation efficiency of ryegrass for Pb-contaminated soil.
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Affiliation(s)
- Lijuan Sun
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
- Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Peiyun Gong
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Ke Song
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
- Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Yafei Sun
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
- Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Qin Qin
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
- Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Hong Zhang
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
- Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Weiguang Lv
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
- Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China
| | - Yong Xue
- ECO-Environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China.
- Shanghai Environmental Protection Monitoring Station of Agriculture, Shanghai, 201403, China.
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Babiy KA, Yu. Kniazev S, Golovanova EV, Solomatin DV, Bel'skaya LV. What Determines Ion Content of Lumbricid Casts: Soil Type, Species, or Ecological Group? POLISH JOURNAL OF ECOLOGY 2021. [DOI: 10.3161/15052249pje2021.69.2.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Kirill A. Babiy
- Research Laboratory of Systematics and Ecology of Invertebrates, Omsk State Pedagogical University, nab. Tukhachevskogo, 14, Omsk 644099, Russia
| | - Stanislav Yu. Kniazev
- Research Laboratory of Systematics and Ecology of Invertebrates, Omsk State Pedagogical University, nab. Tukhachevskogo, 14, Omsk 644099, Russia
| | - Elena V. Golovanova
- Research Laboratory of Systematics and Ecology of Invertebrates, Omsk State Pedagogical University, nab. Tukhachevskogo, 14, Omsk 644099, Russia
| | - Denis V. Solomatin
- Department of Mathematics and Mathematics Teaching Methods, Omsk State Pedagogical University, nab. Tukhachevskogo, 14, Omsk 644099, Russia
| | - Lyudmila V. Bel'skaya
- Biochemistry Research Laboratory, Omsk State Pedagogical University, nab. Tukhachevskogo, 14, Omsk 644099, Russia
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