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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40104 - Soil science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Applied Soil Ecology

ISSN

0929-1393

e-ISSN

1873-0272

Svazek periodika

215

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

106453

Kód UT WoS článku

001570465600001

EID výsledku v databázi Scopus

2-s2.0-105015104579