Impact of plastic mulch film debris on soil physicochemical and hydrological properties

Qi, Yueling; Bériot, Nicolas; Gort, Gerrit; Lwanga, Esperanza Huerta; Gooren, Harm; Yang, Xiaomei; Geissen, Violette

doi:10.1016/j.envpol.2020.115097

Cited by 213 publications

(103 citation statements)

References 57 publications

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“…There is not much information concerning the effect of plastics on the soil function and the processes remain unclear so it is difficult to foresee the consequences of this plastic pollution on soil quality and long-term land productivity. For example, researchers have reported that plastic debris can be detrimental to plant growth (Qi et al, 2018) and can alter soil physical properties, (de Souza Machado et al, 2018;Qi et al, 2020)). Hence, further studies are encouraged to understand the long-term impacts of this pollution.…”

Section: Microplastics In Agricultural Soilsmentioning

confidence: 99%

Low density-microplastics detected in sheep faeces and soil: A case study from the intensive vegetable farming in Southeast Spain

Bériot¹,

Peek²,

Zornoza³

et al. 2021

Preprint

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One of the main sources of plastic pollution in agricultural fields is the plastic mulch used by farmers to improve crop production. The plastic mulch is often not removed completely from the fields after harvest. Over time, the plastic mulch that is left of the fields is broken down into smaller particles which are dispersed by the wind or runoff. In the Region of Murcia in Spain, plastic mulch is heavily used for intensive vegetable farming. After harvest, sheep are released into the fields to graze on the vegetable residues. The objective of the study was to assess the plastic contamination in agricultural soil in Spain and the ingestion of plastic by sheep. Therefore, three research questions were established: i) What is the plastic content in agricultural soils where plastic mulch is commonly used? ii) Do livestock ingest the microplastics found in the soil? iii) How much plastic could be transported by the livestock? To answer these questions, we sampled top soils (0&#8211;10&#160;cm) from 6 vegetable fields and collected sheep faeces from 5 different herds. The microplastic content was measured using density separation and visual identification. We found ~2&#160;&#215;&#160;103 particles&#8729;kg&#8722;1 in the soil and ~103 particles&#8729;kg&#8722;1 in the faeces. The data show that plastic particles were present in the soil and that livestock ingested them. After ingesting plastic from one field, the sheep can become a source of microplastic contamination as they graze on other farms or grasslands. The potential transport of microplastics due to a herd of 1000 sheep was estimated to be ~106 particles&#8729;ha&#8722;1&#8729;y&#8722;1. Further studies should focus on: assessing how much of the plastic found in faeces comes directly from plastic mulching, estimating the plastic degradation in the guts of sheep and understanding the potential effects of these plastic residues on the health of livestock.

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Section: Microplastics In Agricultural Soilsmentioning

confidence: 99%

Low density-microplastics detected in sheep faeces and soil: A case study from the intensive vegetable farming in Southeast Spain

Bériot¹,

Peek²,

Zornoza³

et al. 2021

Preprint

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“…But so far, there is no su cient evidence that MPs with environmental characteristics can enter plants and nally affect plant growth. For most scenarios, some hypothesized indirect mechanisms have been proposed like alteration in soil physicochemical and hydrological properties, changes in soil microbial community and root symbionts, and so on 3,44,45 . In contrast, plastics with nanometer-size could be directly absorbed by plants and then exerted a signi cantly negative effect on plant production 31,35 .…”

Section: Discussionmentioning

confidence: 99%

Transcriptome mechanisms underlying interaction of polystyrene nanoplastics and wheat Triticum aestivum L.

Zhou¹,

Lian²,

Liu³

et al. 2020

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Microplastics (MPs) and nanoplastics (NPs) have inevitably entered and accumulated in terrestrial ecosystems. Recently, the report on MPs/NPs taken-up by crop plants has raised particular concerns. However, molecular mechanisms underlying the interaction of MPs/NPs and crop plant are still vague and elusive. To address this scientific gap, we identified differentially expressed genes (DEGs) and performed co-expression network analyses in hydroponically grown wheat (Triticum aestivum L.) with ambient polystyrene NPs (PSNPs) concentration (0-10 mg/L). PSNPs could significantly shape the gene expression pattern in wheat with a tissue-specific mode. Four regulatory modules associated with the plant performance and nutrient capture were identified using WGCNA analysis. In addition, carbon metabolism, amino acid biosynthesis, MAPK signaling pathway-plant, plant hormone signal transduction, and plant-pathogen interaction were the most enriched KEGG pathways for all DEGs and target module eigengenes. These results confirm that NPs-induced genetic changes are the dominating driven forces for the observed plant growth or defense responses, shedding new light on the molecular mechanism and environmental implication behind the interaction of NPs and crop plants.

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“…Together with imidacloprid and boscalid, these were the most dominant residues found in SeV. The synergetic effects of the main residues present in SeV, in combination with the microplastics present in these soils as a result of years of plastic mulch applications have not been studied sufficiently (Qi et al, 2020). iii) DDT metabolites were still present in many soils, especially in SeO where they contributed significantly to the residue mixtures, even on organic farms.…”

Section: Possible Effects Of Pesticide Residue Mixtures On Soil Healthmentioning

confidence: 99%

    Cocktails of pesticide residues in conventional and organic farming systems in Europe – legacy of the past and turning point for the future

Silva

Geissen

Lwanga

et al. 2021

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Considering that pesticides have been used in Europe for over 70 years, a system for monitoring pesticide residues in EU soils and their effects on soil health is long overdue. In an attempt to address this problem, we tested 340 EU agricultural topsoil samples for multiple pesticide residues. These samples originated from 4 representative EU case study sites (CSS), which covered 3 countries and four of the main EU crops: vegetable and orange production in Spain (S-V and S-O, respectively), grape production in Portugal (P-G), and potato production in the Netherlands (N-P). Soil samples were collected between 2015 and 2018 after harvest or before the start of the growing season, depending on the CSS. Conventional and organic farming results were compared in S-V, S-O and N-P. Soils from conventional farms presented mostly mixtures of pesticide residues, with a maximum of 16 residues/sample. Soils from organic farms had significantly fewer residues, with a maximum of 5 residues/sample. The residues with the highest frequency of detection and the highest content in soil were herbicides: glyphosate and its main metabolite AMPA (P-G, N-P, S-O), and pendimethalin (S-V). Total residue content in soil reached values of 0.8 mg kg-1 for S-V, 2 mg kg-1 for S-O and N-P, and 12 mg kg-1 for P-G. Organic soils presented 70-90% lower residue concentrations than the corresponding conventional soils. There is a severe knowledge gap concerning the effects of the accumulated and complex mixtures of pesticide residues found in soil on soil biota and soil health. Safety benchmarks should be defined and introduced into (soil) legislation as soon as possible. Soil remediation techniques should be developed to keep the levels of pesticide residues below such benchmarks. Furthermore, the process of transitioning to organic farming should take into consideration the residue mixtures and their residence time in soil. &#160;

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Impact of plastic mulch film debris on soil physicochemical and hydrological properties

Cited by 213 publications

References 57 publications

Low density-microplastics detected in sheep faeces and soil: A case study from the intensive vegetable farming in Southeast Spain

Low density-microplastics detected in sheep faeces and soil: A case study from the intensive vegetable farming in Southeast Spain

Transcriptome mechanisms underlying interaction of polystyrene nanoplastics and wheat Triticum aestivum L.

Cocktails of pesticide residues in conventional and organic farming systems in Europe – legacy of the past and turning point for the future

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Impact of plastic mulch film debris on soil physicochemical and hydrological properties

Cited by 213 publications

References 57 publications

Low density-microplastics detected in sheep faeces and soil: A case study from the intensive vegetable farming in Southeast Spain

Low density-microplastics detected in sheep faeces and soil: A case study from the intensive vegetable farming in Southeast Spain

Transcriptome mechanisms underlying interaction of polystyrene nanoplastics and wheat Triticum aestivum L.

&#160; &#160; Cocktails of pesticide residues in conventional and organic farming systems in Europe &#8211; legacy of the past and turning point for the future

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Cocktails of pesticide residues in conventional and organic farming systems in Europe – legacy of the past and turning point for the future