Copper bioavailability and phytotoxicity in Chilean agricultural soils. Implications for sustainable fruit production

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dc.catalogadorvdr
dc.contributor.authorGinocchio Cea, Rosanna
dc.contributor.authorAponte, Humberto
dc.contributor.authorNeaman, Alexander
dc.contributor.authorFuente Karlezi, Luz María de la
dc.contributor.authorSchoffer, J. Tomas
dc.date.accessioned2025-03-12T14:51:41Z
dc.date.available2025-03-12T14:51:41Z
dc.date.issued2024
dc.description.abstractCentral Chile's lowland valleys constitute a major fruit-producing region, but they face soil copper (Cu) contamination originating from Cu mining in the nearby Andes Mountains as well as the historical and ongoing use of Cu- based pesticides. This study investigated the potential toxicity of Cu to plants (phytotoxicity) in a representative fruit-growing valley. To assess this risk, soil samples were collected from 12 agricultural sites with documented Cu contamination and one uncontaminated site to serve as a baseline. A short-term bioassay was conducted using perennial ryegrass ( Lolium perenne) to evaluate the effects of Cu on plant growth. The results demonstrated that elevated Cu levels significantly reduced both the shoot length and dry mass of the ryegrass plants. However, other soil properties, such as the presence of soluble zinc, organic matter, available nitrogen, and clay content, could mitigate these negative effects. Interestingly, the estimated concentration of Cu causing a 50% reduction in plant growth (EC50) was greater than the values reported in previous studies. This may be because Cu binds to soil organic matter (SOM), which reduces its bioavailability and immediate toxicity to plants. While this binding to SOM can initially reduce the negative effects of Cu, the eventual breakdown of SOM over time may release Cu back into the soil, posing long-term risks to both crops and the wider soil ecosystem. To fully understand these potential long-term impacts, further research is needed and should include studies with other soil organisms, such as earthworms and microorganisms, to gain a more comprehensive understanding of the ecological consequences of Cu contamination in these vital agricultural systems.
dc.fechaingreso.objetodigital2025-03-12
dc.fuente.origenWOS
dc.identifier.doi10.7764/ijanr.v51i3.2627
dc.identifier.issn2452-5731
dc.identifier.urihttps://doi.org/10.7764/ijanr.v51i3.2627
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/102518
dc.identifier.wosidWOS:001382675900005
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Ginocchio Cea, Rosanna; 0000-0003-4089-8188; 61759
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Fuente Karlezi, Luz María de la; S/I; 183769
dc.issue.numero3
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final218
dc.pagina.inicio204
dc.revistaInternational Journal of Agriculture and Natural Resources
dc.rightsacceso abierto
dc.rights.licenseCC BY 4.0 Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCopper phytotoxicity
dc.subjectLolium perenne
dc.subjectSoil contamination
dc.subjectCopper bioavailability
dc.subjectSoil organic matter
dc.subjectEffective concentration (EC50)
dc.subjectMining impacts
dc.subjectAgricultural pollution
dc.subjectChilean agriculture
dc.subjectSoil health
dc.subjectEnvironmental risk
dc.subject.ddc600
dc.subject.deweyTecnologíaes_ES
dc.subject.ods11 Sustainable cities and communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleCopper bioavailability and phytotoxicity in Chilean agricultural soils. Implications for sustainable fruit production
dc.typeartículo
dc.volumen51
sipa.codpersvinculados61759
sipa.codpersvinculados183769
sipa.trazabilidadWOS;2025-01-11
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