Effects of heavy metals on variation in bacterial communities in farmland soil of tailing dam collapse area

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 8, 2025

Heavy metals are commonly present in polluted soil mining areas. In this study, we investigated 10 sites of farmland the heavy metal tailing dam collapse area (TDCA) with dominant phyla Acidobacteriota, Proteobacteria, Bacteroidetes, and Planctomycetes. The is a composite contamination multiple metals, Cd, Pb Zn being most severely contaminated, levels Hg Cu exceeding screening values at some sites. Shannon, Chao1 ACE indices revealed high microbial diversity but low relative abundance microorganisms TDCA1 TDCA3 results redundancy analysis (RDA) showed that (Max = 4.31 mg/kg) 100 were important factors affecting community TDCA compared to other metals. Correlation communities RB41 (Acidobacteria) was more resistant concentrations Pb, pollution. genera UTCFX1 (Chloroflxi) norank_TRA3-20 had strong tolerance Hg. significantly negatively correlated norank_WD2101_soil_group (P < 0.05). Therefore these can be used as indicators for monitoring potential contamination. predict changes ecosystem maintain its ecological balance health.

Язык: Английский

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Alleviating the adverse effects of Cd–Pb contamination through the application of silicon fertilizer: Enhancing soil microbial diversity and mitigating heavy metal contamination

Chemosphere, Год журнала: 2024, Номер 352, С. 141414 - 141414

Опубликована: Фев. 7, 2024

Язык: Английский

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Soil resource availability regulates the response of micro-food web multitrophic interactions to heavy metal contamination

Environmental Research, Год журнала: 2025, Номер unknown, С. 121222 - 121222

Опубликована: Фев. 1, 2025

Язык: Английский

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Forest-to-Cropland Conversion Reshapes Microbial Hierarchical Interactions and Degrades Ecosystem Multifunctionality at a National Scale

Environmental Science & Technology, Год журнала: 2024, Номер 58(25), С. 11027 - 11040

Опубликована: Июнь 10, 2024

Conversion from natural lands to cropland, primarily driven by agricultural expansion, could significantly alter soil microbiome worldwide; however, influences of forest-to-cropland conversion on microbial hierarchical interactions and ecosystem multifunctionality have not been fully understood. Here, we examined the effects intratrophic cross-trophic further disclosed their underlying drivers at a national scale, using Illumina sequencing combined with high-throughput quantitative PCR techniques. The changed structure (including prokaryotic, fungal, protistan communities) while it did affect its alpha diversity. Both intrakingdom interkingdom networks revealed that interaction patterns generally tended be more modular resist environmental disturbance introduced conversion, but this was insufficient for maintain stability; hence, predation behaviors were still disturbed under such conversion. Moreover, key clusters declined during mainly because increased total phosphorus level, drove great degradation (by 207%) in cropland soils. Overall, these findings comprehensively implied negative agroecosystem, multifunctionality.

Язык: Английский

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Comprehensive chemical passivation of active-state heavy metals in relation to soil biological activity in Taojia River basin

Ecological Indicators, Год журнала: 2024, Номер 158, С. 111605 - 111605

Опубликована: Янв. 1, 2024

Rapid global industrialization has resulted in irreversible environmental degradation, with one pressing issue being the escalating problem of land contamination induced by heavy metals (HMs). This phenomenon not only inflicts lasting harm on plants and microorganisms within affected regions but also imposes significant losses various industrial chains, particularly realm agriculture. A noteworthy illustration is soil Taojia River Basin, Hunan Province, China, attributed to mining activities. Therefore, this study dedicated examining passivation active-state lead (Pb) cadmium (Cd) cultivated fields Basin. To achieve this, two passivating agents, namely bentonite (referred as passivator-P) an acidifying agent known "Shi Di Jia" passivator-S), were employed, along a control group (CK). The Pb primarily relies cation exchange adsorbed passivator's surface, while Cd intricately linked total nitrogen content (TN). Indoor incubation tests conducted assess soil. Additionally, analysis health indicators their relationships microbial dynamics enzymes was undertaken. findings revealed that passivator-P exhibited greater efficacy at concentrations 3% 5%, higher passivator-S demonstrated increased effectiveness Cd. Concerning bacterial diversity, pH post-passivation showed positive correlation Observed_species index, whereas negative associations Chao1 index. Regarding fungal TN displayed Simpson It concluded adding concentration proved be optimal for Pb-contaminated soils Although lesser Pb, it suitable passivation. These offer crucial reference remediation area other sites similar characteristics, shedding light impacts organisms. implications underscore necessity site-specific strategies holistic approach addressing HMs contamination.

Язык: Английский

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Heavy metals and nutrients mediate the distribution of soil microbial community in a typical contaminated farmland of South China

The Science of The Total Environment, Год журнала: 2024, Номер 947, С. 174322 - 174322

Опубликована: Окт. 1, 2024

Язык: Английский

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Water quality drives the reconfiguration of riverine planktonic microbial food webs

Environmental Research, Год журнала: 2024, Номер 249, С. 118379 - 118379

Опубликована: Фев. 7, 2024

Язык: Английский

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Earthworms alleviate microplastics stress on soil microbial and protist communities

The Science of The Total Environment, Год журнала: 2024, Номер 948, С. 174945 - 174945

Опубликована: Июль 21, 2024

Язык: Английский

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Soil nutrient limitation controls trophic cascade effects of micro-food web-derived ecological functions in degraded agroecosystems

Journal of Advanced Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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The effect of thermal power plant emitted fly ash on community structure of soil-inhabiting nematodes in Kasimpur, Aligarh, India

Discover Soil., Год журнала: 2025, Номер 2(1)

Опубликована: Фев. 4, 2025

Язык: Английский

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