Microplastics persist in an arable soil but do not affect soil microbial biomass, enzyme activities, and crop yield

dc.contributor.authorSchöpfer, Lion
dc.contributor.authorMöller, Julia N.
dc.contributor.authorSteiner, Thomas
dc.contributor.authorSchnepf, Uwe
dc.contributor.authorMarhan, Sven
dc.contributor.authorResch, Julia
dc.contributor.authorBayha, Ansilla
dc.contributor.authorLöder, Martin G. J.
dc.contributor.authorFreitag, Ruth
dc.contributor.authorBrümmer, Franz
dc.contributor.authorLaforsch, Christian
dc.contributor.authorStreck, Thilo
dc.contributor.authorForberger, Jens
dc.contributor.authorKranert, Martin
dc.contributor.authorKandeler, Ellen
dc.contributor.authorPagel, Holger
dc.date.accessioned2023-08-09T12:23:31Z
dc.date.available2023-08-09T12:23:31Z
dc.date.issued2022de
dc.date.updated2023-04-19T15:41:09Z
dc.description.abstractMicroplastics (MP, plastic particles <5 mm) are ubiquitous in arable soils due to significant inputs via organic fertilizers, sewage sludges, and plastic mulches. However, knowledge of typical MP loadings, their fate, and ecological impacts on arable soils is limited. We studied (1) MP background concentrations, (2) the fate of added conventional and biodegradable MP, and (3) effects of MP in combination with organic fertilizers on microbial abundance and activity associated with carbon (C) cycling, and crop yields in an arable soil. On a conventionally managed soil (Luvisol, silt loam), we arranged plots in a randomized complete block design with the following MP treatments (none, low‐density polyethylene [LDPE], a blend of poly(lactic acid) and poly(butylene adipate‐co‐terephthalate) [PLA/PBAT]) and organic fertilizers (none, compost, digestate). We added 20 kg MP ha-1 and 10 t organic fertilizers ha-1. We measured concentrations of MP in the soil, microbiological indicators of C cycling (microbial biomass and enzyme activities), and crop yields over 1.5 years. Background concentration of MP in the top 10 cm was 296 ± 110 (mean ± standard error) particles <0.5 mm per kg soil, with polypropylene, polystyrene, and polyethylene as the main polymers. Added LDPE and PLA/PBAT particles showed no changes in number and particle size over time. MP did not affect the soil microbiological indicators of C cycling or crop yields. Numerous MP occur in arable soils, suggesting diffuse MP entry into soils. In addition to conventional MP, biodegradable MP may persist under field conditions. However, MP at current concentrations are not expected to affect C turnover and crop yield.en
dc.description.sponsorshipMinistry of Environment, Climate and Energy of Baden-Württembergde
dc.description.sponsorshipDeutsche Forschungsgemeinschaftde
dc.description.sponsorshipProjekt DEALde
dc.identifier.issn1522-2624
dc.identifier.issn1436-8730
dc.identifier.other1858657717
dc.identifier.urihttp://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-134069de
dc.identifier.urihttp://elib.uni-stuttgart.de/handle/11682/13406
dc.identifier.urihttp://dx.doi.org/10.18419/opus-13387
dc.language.isoende
dc.relation.uridoi:10.1002/jpln.202200062de
dc.rightsinfo:eu-repo/semantics/openAccessde
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/de
dc.subject.ddc570de
dc.titleMicroplastics persist in an arable soil but do not affect soil microbial biomass, enzyme activities, and crop yielden
dc.typearticlede
ubs.fakultaetBau- und Umweltingenieurwissenschaftende
ubs.fakultaetEnergie-, Verfahrens- und Biotechnikde
ubs.fakultaetFakultätsübergreifend / Sonstige Einrichtungde
ubs.institutInstitut für Siedlungswasserbau, Wassergüte- und Abfallwirtschaftde
ubs.institutInstitut für Biomaterialien und biomolekulare Systemede
ubs.institutInstitut für Kunststofftechnikde
ubs.institutFakultätsübergreifend / Sonstige Einrichtungde
ubs.publikation.seiten836-849de
ubs.publikation.sourceJournal of plant nutrition and soil science 185 (2022), S. 836-849de
ubs.publikation.typZeitschriftenartikelde

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