Thermal regime-dependent behaviour of soil toxic elements and microbiota under mineral mix-amended phytostabilisation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F25%3A43927430" target="_blank" >RIV/62156489:43210/25:43927430 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.apsoil.2025.106453" target="_blank" >https://doi.org/10.1016/j.apsoil.2025.106453</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsoil.2025.106453" target="_blank" >10.1016/j.apsoil.2025.106453</a>

Result language

angličtina

Original language name

Thermal regime-dependent behaviour of soil toxic elements and microbiota under mineral mix-amended phytostabilisation

Original language description

This is the first study to provide insights into the effects of a halloysite-diatomite-based (HD) mineral amendment on Lolium perenne L. grass cultivated with a native microbiome in heavily multimetal-impacted soil, specifically regarding grass growth, microbial activity, soil processes, and the behaviour of potentially toxic elements (PTEs: Cd, Ni, Cu, Pb). Two lab-scale, place-specific thermal regimes were applied: a warmer glasshouse (15-25 oC) and a colder freeze-thaw chamber (FTC; MINUS SIGN 20-20 oC). Firstly, (i) unenriched vs. HD-enriched soils were separately compared within each thermal regime. Secondly, (ii) for each soil type separately, glasshouse vs. freeze-thaw regimes were compared. These comparisons were made to (i) evaluate the effect of soil enrichment under different thermal conditions and (ii) assess the warm-to-cold (W-to-C) temperature transition for each soil type. The HD-based amendment enhanced metal adsorption, particularly under the freeze-thaw (Ni &gt; Pb &gt; Cu &gt; Cd). In the glasshouse, HD increased mobile Ni (7 % RIGHTWARDS ARROW 15 %) but decreased Cu (9 % RIGHTWARDS ARROW 4 %), with minor Pb/Cd changes. Freeze-thaw stabilised Cu, Pb, and Cd, while Ni remained mobile. The W-to-C temperature transition in HD-enriched soils enhanced Cu/Ni adsorption, unaffected Cd, and slightly decreased Pb. Unenriched soils showed sharp drops in mobile Cd (56 % RIGHTWARDS ARROW 25 %) and Pb (9 % RIGHTWARDS ARROW 4 %), with modest Ni/Cu changes. A similar trend appeared in HD-enriched soils. Freeze-thaw increased copiotrophic taxa, while HD promoted Prochlorococcus and Pseudoxanthomonas, mitigating freeze-thaw stress for certain microbial taxa. These findings establish seasonal shifts as a critical driver in reducing soil pollution and enhancing soil functioning.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40104 - Soil science

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Soil Ecology

ISSN

0929-1393

e-ISSN

1873-0272

Volume of the periodical

215

Issue of the periodical within the volume

November

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

14

Pages from-to

106453

UT code for WoS article

001570465600001

EID of the result in the Scopus database

2-s2.0-105015104579