High doses of polypropylene and polyvinyl chloride microplastics affect the microbial community and nutrient status of vineyard soils
Erika Jez1, Elisa Pellegrini2, Melita Sternad Lemut1, Maria De Nobili2, Marco Contin2()
. University of Nova Gorica, Vipavska cesta 13, 5000 Nova Gorica, Slovenia . Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, 33100 Udine, Italy
The escalating use of plastic materials in viticulture causes release of microplastics (MPs) into vineyard soils. This study examines the impact on soil health of polypropylene (PP) raffia and polyvinyl chloride (PVC) tube strings, commonly mulched into the topsoil after use. A 120-d incubation experiment was conducted with soils exposed to high doses (10 g/kg) of microplastics (MPs) from standard, new and used strings. The study investigated alterations in the microbial community, bioavailability of macronutrients (NH4+ and NO3–, P, K, Ca, Mg), and bioavailability of micronutrients (Cu, Zn, Fe, Mg). The presence of MPs significantly stressed the soil microbial community, reducing microbial biomass by 30% after 30 d, with the exception of PVC in acid soil, which caused an unexpected increase of about 60%. The metabolic quotient (qCO2) doubled in MP-polluted soils, with PVC exerting a more pronounced effect than PP. Basal respiration increased by 25% relative to the acid control soil. PVC MPs raised soil pH from 6.2 to 7.2 and firmly reduced the bioavailability of micronutrients, particularly in acidic soils, and led to a 98% reduction in nitrate (NO3–). The availability of NH4+, P, K, Mg decreased by 10% and Cu, Fe, Mn, Zn by 30%. However, Ca availability increased by 30%, despite shifting from the acid-soluble fraction to soil organic matter and crystalline minerals. Calcareous soil was generally more resilient to changes than the acid soil. These findings underscore the urgent need to investigate the long-term effects of MPs from viticulture on soil properties and health.
Erika Jez,Elisa Pellegrini,Melita Sternad Lemut, et al. High doses of polypropylene and polyvinyl chloride microplastics affect the microbial community and nutrient status of vineyard soils[J]. Front. Environ. Sci. Eng.,
2025, 19(1): 6.
Fig.1 Effect of PP and PVC microplastics on soil microbial biomas (GIR), basal respiration (BR), metabolic quotient (qCO2) and microbial diversity, Shannon-Weaver index (H’) obtained from the SIR bioassays in calcareous and acid soil after 120 d of incubation. Control are soils without MPs. Error bars represent standard error of three replicates.
Soil type
Treatment
pH
TOC(g/kg)
Available micronutrients (mg/kg)
Cu
Zn
Fe
Mn
Calcareous soil
Control
b7.67 ± 0.04a
27.0
a33.16 ± 1.22a
a4.00 ± 0.18a
a55.86 ± 0.76a
a63.07 ± 1.02a
PP new
7.66 ± 0.10a
23.0
28.97 ± 1.41b
3.89 ± 0.12a
46.06 ± 1.74b
56.20 ± 2.30a
PP used
7.51 ± 0.16a
29.0
29.32 ± 1.37b
4.13 ± 0.14a
46.93 ± 4.09b
57.08 ± 6.00a
PP std
7.57 ± 0.03a
37.0
29.88 ± 1.09b
4.11 ± 0.06a
48.85 ± 0.63b
60.28 ± 2.12a
PVC new
a7.79 ± 0.00
57.0
b30.50 ± 0.65
a3.85 ± 0.04
b50.66 ± 0.51
b59.06 ± 0.46
PVC used
a7.77 ± 0.02
60.0
b30.17 ± 7.7
a4.06 ± 0.13
b49.64 ± 2.17
b56.85 ± 2.04
PVC std
c7.54 ± 0.00
24.0
b29.39 ± 0.56
b3.27 ± 0.03
b51.62 ± 1.20
b58.87 ± 0.89
Acid soil
Control
c6.19 ± 0.02a
21.0
a49.09 ± 0.75a
a7.23 ± 0.17b
a83.62 ± 1.66a
a45.30 ± 1.50a
PP new
6.10 ± 0.01b
27.0
48.12 ± 1.57a
7.85 ± 0.31a
73.75 ± 7.48ab
37.63 ± 5.22ab
PP used
6.07 ± 0.01b
33.0
47.77 ± 0.89a
7.60 ± 0.04ab
68.82 ± 1.17b
34.21 ± 3.88b
PP std
6.10 ± 0.02b
34.0
47.72 ± 2.10a
7.68 ± 0.43ab
74.17 ± 8.94ab
37.82 ± 6.49ab
PVC new
a7.16 ± 0.01
34.0
bc41.71 ± 0.27
b5.80 ± 0.10
c48.62 ± 0.12
b18.20 ± 0.08
PVC used
b7.07 ± 0.03
47.0
c40.50 ± 1.74
bc5.69 ± 0.26
bc54.18 ± 10.33
b24.20 ± 14.52
PVC std
c6.21 ± 0.01
58.0
b42.97 ± 0.57
c5.41 ± 0.08
b63.88 ± 1.03
b31.10 ± 0.29
Tab.2 Soil pH, total organic carbon (TOC) and bioavailability of micronutrients in vineyard soils after 120 d of incubation for control (no MPs) and MPs polluted calcareous and acid soil
Fig.2 Nitrate (NO3−) and ammonium (NH4+) content in calcareous and acid soils after 120 d of incubation in control (no MPs) and MPs contaminated soils. Grained PVC and PP ties were added to the soil: new ties purchased at viti-oenological local shop (PVC/PP new), previously used ties from the sampled vineyard (PVC/PP used) and polyvinyl chloride and polypropylene pure polymers (PVC/PP std). Error bars represent standard error of three replicates. Different letters denote significant differences between treatments within each soil type according to Tukey’s multiple comparison test (p < 0.05).
Fig.3 Heatmap is showing the changes in macronutrient bioavailability (%) in MPs spiked calcareous and acid soils compared to control soils (no MPs). Positive values represent a decrease in bioavailability and negative values represent an increase in nutrient bioavailability. Grained PVC and PP ties were added to the soil: new ties purchased at viti-oenological local shop (PVC/PP new), previously used ties from the sampled vineyard (PVC/PP used) and polyvinyl chloride and polypropylene pure polymers (PVC/PP std).
Fig.4 Fractionation of macronutrients (Ca, Mg) and micronutrients (Cu and Zn) measured by four-step sequential extraction scheme (BCR-method) after 120 d of incubation for control (no MPs) and MPs polluted calcareous and acid soils. Grained PVC and PP ties were added to the soil: new ties purchased at viti-oenological local shop (PVC/PP new), previously used ties from the sampled vineyard (PVC/PP used) and polyvinyl chloride and polypropylene pure polymers (PVC/PP std).
Fig.5 Differences (expressed in percentage) in the bioavailability of macronutrients (Ca, Mg) and micronutrients (Cu and Zn) in MPs polluted calcareous and acid soils after 120 d of incubation, measured after EDTA (blue bars) and acetic acid (orange bars) single-step extractions. Grained PVC and PP ties were added to the soil: new ties purchased at viti-oenological local shop (PVC/PP new), previously used ties from the sampled vineyard (PVC/PP used) and polyvinyl chloride and polypropylene pure polymers (PVC/PP std). Positive values stand for increased bioavailability and negative values for reduced bioavailability of the plant nutrients in the soil. Error bars represent standard error of three replicates.
1
Q An, T Zhou, C Wen, C Yan. (2023). The effects of microplastics on heavy metals bioavailability in soils: a meta-analysis. Journal of Hazardous Materials, 460: 132369 https://doi.org/10.1016/j.jhazmat.2023.132369
2
J P E Anderson, K H Domsch. (1978). A physiological method for the quantitative measurement of microbial biomass in soils. Soil Biology & Biochemistry, 10(3): 215–221 https://doi.org/10.1016/0038-0717(78)90099-8
3
T H Anderson, K H Domsch. (1993). The metabolic quotient for CO2 (qCO2) as a specific activity parameter to assess the effects of environmental conditions, such as pH, on the microbial biomass of forest soils. Soil Biology & Biochemistry, 25(3): 393–395 https://doi.org/10.1016/0038-0717(93)90140-7
4
V K Aralappanavar, R Mukhopadhyay, Y Yu, J Liu, A Bhatnagar, S M Praveena, Y Li, M Paller, T M Adyel, J Rinklebe. et al.. (2024). Effects of microplastics on soil microorganisms and microbial functions in nutrients and carbon cycling: a review. Science of the Total Environment, 924: 171435 https://doi.org/10.1016/j.scitotenv.2024.171435
5
T T Awet, Y Kohl, F Meier, S Straskraba, A L Grün, T Ruf, C Jost, R Drexel, E Tunc, C Emmerling (2018). Effects of polystyrene nanoparticles on the microbiota and functional diversity of enzymes in soil. Environmental Sciences Europe, 30
6
S Barili, A Bernetti, C Sannino, N Montegiove, E Calzoni, A Cesaretti, I Pinchuk, D Pezzolla, B Turchetti, P Buzzini. et al.. (2023). Impact of PVC microplastics on soil chemical and microbiological parameters. Environmental Research, 229: 115891 https://doi.org/10.1016/j.envres.2023.115891
7
L Blöcker, C Watson, F Wichern. (2020). Living in the plastic age: different short-term microbial response to microplastics addition to arable soils with contrasting soil organic matter content and farm management legacy. Environmental Pollution, 267: 115468 https://doi.org/10.1016/j.envpol.2020.115468
8
G A Brown, H A Elliott. (1992). Influence of electrolytes on EDTA extraction of Pb from polluted soil. Water, Air, and Soil Pollution, 62(1−2): 157–165 https://doi.org/10.1007/BF00478458
9
C D Campbell, S J Chapman, C M Cameron, M S Davidson, J M Potts. (2003). A rapid microtiter plate method to measure carbon dioxide evolved from carbon substrate amendments so as to determine the physiological profiles of soil microbial communities by using whole soil. Applied and Environmental Microbiology, 69(6): 3593–3599 https://doi.org/10.1128/AEM.69.6.3593-3599.2003
10
L Cao, D Wu, P Liu, W Hu, L Xu, Y Sun, Q Wu, K Tian, B Huang, S J Yoon. et al.. (2021). Occurrence, distribution and affecting factors of microplastics in agricultural soils along the lower reaches of Yangtze River, China. Science of the Total Environment, 794: 148694 https://doi.org/10.1016/j.scitotenv.2021.148694
11
X Chen, X Chen, Y Zhao, H Zhou, X Xiong, C Wu. (2020). Effects of microplastic biofilms on nutrient cycling in simulated freshwater systems. Science of the Total Environment, 719: 137276 https://doi.org/10.1016/j.scitotenv.2020.137276
12
X Chen, X Gu, L Bao, S Ma, Y Mu. (2021). Comparison of adsorption and desorption of triclosan between microplastics and soil particles. Chemosphere, 263: 127947 https://doi.org/10.1016/j.chemosphere.2020.127947
13
R W Chia, J Y Lee, J Jang, H Kim, K D Kwon. (2022). Soil health and microplastics: a review of the impacts of microplastic contamination on soil properties. Journal of Soils and Sediments, 22(10): 2690–2705 https://doi.org/10.1007/s11368-022-03254-4
14
I Christl. (2012). Ionic strength- and pH-dependence of calcium binding by terrestrial humic acids. Environmental Chemistry, 9(1): 89–96 https://doi.org/10.1071/EN11112
15
G Colombini, C Rumpel, S Houot, P Biron, M F Dignac. (2022). A long-term field experiment confirms the necessity of improving biowaste sorting to decrease coarse microplastic inputs in compost amended soils. Environmental Pollution, 315: 120369 https://doi.org/10.1016/j.envpol.2022.120369
16
I Colzi, L Renna, E Bianchi, M B Castellani, A Coppi, S Pignattelli, S Loppi, C Gonnelli. (2022). Impact of microplastics on growth, photosynthesis and essential elements in Cucurbita pepo L. Journal of Hazardous Materials, 423: 127238 https://doi.org/10.1016/j.jhazmat.2021.127238
17
S U Dar, Z Wu, L Zhang, P Yu, Y Qin, Y Shen, Y Zou, L Poh, Y Eichen, Y Achmon. (2022). On the quest for novel bio-degradable plastics for agricultural field mulching. Frontiers in Bioengineering and Biotechnology, 10: 922974 https://doi.org/10.3389/fbioe.2022.922974
18
Souza Machado A A de, C W Lau, W Kloas, J Bergmann, J B Bachelier, E Faltin, R Becker, A S Görlich, M C Rillig. (2019). Microplastics can change soil properties and affect plant performance. Environmental Science & Technology, 53(10): 6044–6052 https://doi.org/10.1021/acs.est.9b01339
19
ECHA. (2019). . ,
20
M Esterhuizen, Y J Kim. (2022). Effects of polypropylene, polyvinyl chloride, polyethylene terephthalate, polyurethane, high-density polyethylene, and polystyrene microplastic on Nelumbo nucifera (Lotus) in water and sediment. Environmental Science and Pollution Research International, 29(12): 17580–17590 https://doi.org/10.1007/s11356-021-17033-0
21
Y Fei, S Huang, H Zhang, Y Tong, D Wen, X Xia, H Wang, Y Luo, D Barceló. (2020). Response of soil enzyme activities and bacterial communities to the accumulation of microplastics in an acid cropped soil. Science of the Total Environment, 707: 135634 https://doi.org/10.1016/j.scitotenv.2019.135634
22
X Feng, Q Wang, Y Sun, S Zhang, F Wang. (2022). Microplastics change soil properties, heavy metal availability and bacterial community in a Pb-Zn-contaminated soil. Journal of Hazardous Materials, 424: 127364 https://doi.org/10.1016/j.jhazmat.2021.127364
P M Groffman. (2012). Terrestrial denitrification: challenges and opportunities. Ecological Processes, 1(1): 1–11 https://doi.org/10.1186/2192-1709-1-11
25
D Huang, X Wang, L Yin, S Chen, J Tao, W Zhou, H Chen, G Zhang, R Xiao. (2022). Research progress of microplastics in soil-plant system: ecological effects and potential risks. Science of the Total Environment, 812: 151487 https://doi.org/10.1016/j.scitotenv.2021.151487
26
W Jia, A Karapetrova, M Zhang, L Xu, K Li, M Huang, J Wang, Y Huang. (2022). Automated identification and quantification of invisible microplastics in agricultural soils. Science of the Total Environment, 844: 156853 https://doi.org/10.1016/j.scitotenv.2022.156853
27
Y Khaledian, E C Brevik, P Pereira, A Cerdà, M A Fattah, H Tazikeh. (2017). Modeling soil cation exchange capacity in multiple countries. Catena, 158: 194–200 https://doi.org/10.1016/j.catena.2017.07.002
28
A Khan, Z Jie, J Wang, J Nepal, N Ullah, Z Y Zhao, P Y Wang, W Ahmad, A Khan, W Wang. et al.. (2023a). Ecological risks of microplastics contamination with green solutions and future perspectives. Science of the Total Environment, 899: 165688 https://doi.org/10.1016/j.scitotenv.2023.165688
29
M A Khan, Q Huang, S Khan, Q Wang, J Huang, S Fahad, M Sajjad, Y Liu, O Mašek, X Li. et al.. (2023b). Abundance, spatial distribution, and characteristics of microplastics in agricultural soils and their relationship with contributing factors. Journal of Environmental Management, 328: 117006 https://doi.org/10.1016/j.jenvman.2022.117006
30
S K Kim, J S Kim, H Lee, H J Lee. (2021a). Abundance and characteristics of microplastics in soils with different agricultural practices: importance of sources with internal origin and environmental fate. Journal of Hazardous Materials, 403: 123997 https://doi.org/10.1016/j.jhazmat.2020.123997
31
S W Kim, S W Jeong, Y J An. (2021b). Microplastics disrupt accurate soil organic carbon measurement based on chemical oxidation method. Chemosphere, 276: 130178 https://doi.org/10.1016/j.chemosphere.2021.130178
32
J Klaus, M Seeger, M Bigalke, C J Weber. (2024). Microplastics in vineyard soils: first insights from plastic-intensive viticulture systems. Science of the Total Environment, 947: 174699 https://doi.org/10.1016/j.scitotenv.2024.174699
33
H Li, L Liu. (2022). Short-term effects of polyethene and polypropylene microplastics on soil phosphorus and nitrogen availability. Chemosphere, 291: 132984 https://doi.org/10.1016/j.chemosphere.2021.132984
34
J Li, Y Yu, Z Zhang, M Cui. (2023). The positive effects of polypropylene and polyvinyl chloride microplastics on agricultural soil quality. Journal of Soils and Sediments, 23(3): 1304–1314 https://doi.org/10.1007/s11368-022-03387-6
35
R Liang, F Sun, C Zhang, R Zhang, H Wang, X Wang. (2023). Interaction between microplastics and microorganisms in soil environment: a review. Chinese Journal of Biotechnology, 39: 500–515
H Liu, X Yang, G Liu, C Liang, S Xue, H Chen, C J Ritsema, V Geissen. (2017). Response of soil dissolved organic matter to microplastic addition in Chinese loess soil. Chemosphere, 185: 907–917 https://doi.org/10.1016/j.chemosphere.2017.07.064
38
Y Liu, W Cui, W Li, S Xu, Y Sun, G Xu, F Wang. (2023). Effects of microplastics on cadmium accumulation by rice and arbuscular mycorrhizal fungal communities in cadmium-contaminated soil. Journal of Hazardous Materials, 442: 130102 https://doi.org/10.1016/j.jhazmat.2022.130102
39
Y M Lozano, T Lehnert, L T Linck, A Lehmann, M C Rillig. (2021). Microplastic shape, polymer type, and concentration affect soil properties and plant biomass. Frontiers in Plant Science, 12: 616645 https://doi.org/10.3389/fpls.2021.616645
40
L Miao, C Wang, T M Adyel, J Wu, Z Liu, G You, M Meng, H Qu, L Huang, Y Yu. et al.. (2020). Microbial carbon metabolic functions of biofilms on plastic debris influenced by the substrate types and environmental factors. Environment International, 143: 106007 https://doi.org/10.1016/j.envint.2020.106007
41
E Moreno-Jiménez, E F Leifheit, C Plaza, L Feng, J Bergmann, A Wulf, A Lehmann, M C Rillig. (2022). Effects of microplastics on crop nutrition in fertile soils and interaction with arbuscular mycorrhizal fungi. Journal of Sustainable Agriculture and Environment, 1(1): 66–72 https://doi.org/10.1002/sae2.12006
42
RL Mulvaney (1996). “Nitrogen—Inorganic Forms,” in Methods of Soil Analysis. Hoboken: John Wiley & Sons, Ltd.
43
S R Olsen (1954). Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate. Washington, DC: US Department of Agriculture
44
N Papassiopi, S Tambouris, A Kontopoulos. (1999). Removal of heavy metals from calcareous contaminated soils by EDTA leaching. Water, Air, and Soil Pollution, 109(1−4): 1–15 https://doi.org/10.1023/A:1005089515217
45
R Patil, U S Bagde. (2012). Isolation of polyvinyl chloride degrading bacterial strains from environmental samples using enrichment culture technique. African Journal of Biotechnology, 11(31): 7947–7956 https://doi.org/10.5897/AJB11.3630
46
S Pignattelli, A Broccoli, M Renzi. (2020). Physiological responses of garden cress (L. sativum) to different types of microplastics. Science of the Total Environment, 727: 138609 https://doi.org/10.1016/j.scitotenv.2020.138609
47
A I S B L Plastics Europe (2023). Plastics – the Fast Facts 2023 Plastics Europe. Brussels: Plastics Europe
48
T Prus, T Kralj, B Vrščaj, M Zupan, H Grčman (2015). Slovenska klasifikacija tal. Ljubljana: Univerza v Ljubljani (in Slovenian)
49
R Development Core Team (2018) R: A Language and Environment for Statistical Computing. Vienna: R Foundation for Statistical Computing
50
G Rauret, J López-Sánchez, A Sahuquillo, R Rubio, C Davidson, A Ure, P Quevauviller. (1999). Improvement of the BCR three step sequential extraction procedure prior to the certification of new sediment and soil reference materials. Journal of Environmental Monitoring, 1(1): 57–61 https://doi.org/10.1039/a807854h
51
M C Rillig. (2018). Microplastic disguising as soil carbon storage. Environmental Science & Technology, 52(11): 6079–6080 https://doi.org/10.1021/acs.est.8b02338
52
G Riveros, H Urrutia, J Araya, E Zagal, M Schoebitz. (2022). Microplastic pollution on the soil and its consequences on the nitrogen cycle: a review. Environmental Science and Pollution Research International, 29(6): 7997–8011 https://doi.org/10.1007/s11356-021-17681-2
53
L Rong, L Zhao, L Zhao, Z Cheng, Y Yao, C Yuan, L Wang, H Sun. (2021). LDPE microplastics affect soil microbial communities and nitrogen cycling. Science of the Total Environment, 773: 145640 https://doi.org/10.1016/j.scitotenv.2021.145640
54
H Shen, Y Sun, H Duan, J Ye, A Zhou, H Meng, F Zhu, H He, C Gu. (2023). Effect of PVC microplastics on soil microbial community and nitrogen availability under laboratory-controlled and field-relevant temperatures. Applied Soil Ecology, 184: 104794 https://doi.org/10.1016/j.apsoil.2022.104794
55
H A Shnawa, Y Jahani, M N Khalaf, A H Taobi. (2016). The potential of tannins as thermal co-stabilizer additive for polyvinyl chloride. Journal of Thermal Analysis and Calorimetry, 123(2): 1253–1261 https://doi.org/10.1007/s10973-015-5082-2
56
SiStat (2024). Površina in število nasadov, vinorodne dežele, Slovenija, po letih. Ljubljana: Statistical Office of the Republic of Slovenia ,(in Slovenian)
57
Y Sun, X Ren, J Pan, Z Zhang, T H Tsui, L Luo, Q Wang. (2020). Effect of microplastics on greenhouse gas and ammonia emissions during aerobic composting. Science of the Total Environment, 737: 139856 https://doi.org/10.1016/j.scitotenv.2020.139856
58
T Szili-Kovács, T Takács. (2024). Microbial biomass and rhizosphere soil properties in response to heavy metal-contaminated flooding. Agriculture, 14(5): 756 https://doi.org/10.3390/agriculture14050756
59
P S Tourinho, V Kočí, S Loureiro, Gestel C A M van. (2019). Partitioning of chemical contaminants to microplastics: sorption mechanisms, environmental distribution and effects on toxicity and bioaccumulation. Environmental Pollution, 252: 1246–1256 https://doi.org/10.1016/j.envpol.2019.06.030
60
USEPA 3052 (1995). Method 3052: Microwave Assisted Acid Digestion of Sediments, Sludges, and Oils. Washington, DC: U.S. Environmental Protection Agency
61
F A Vázquez, Cid B Pérez, Segade S Río. (2016). Assessment of metal bioavailability in the vineyard soil-grapevine system using different extraction methods. Food Chemistry, 208: 199–208 https://doi.org/10.1016/j.foodchem.2016.04.005
62
G Vox, R V Loisi, I Blanco, G S Mugnozza, E Schettini. (2016). Mapping of agriculture plastic waste. Agriculture and Agricultural Science Procedia, 8: 583–591 https://doi.org/10.1016/j.aaspro.2016.02.080
63
F Wang, Q Wang, C A Adams, Y Sun, S Zhang. (2022). Effects of microplastics on soil properties: current knowledge and future perspectives. Journal of Hazardous Materials, 424: 127531 https://doi.org/10.1016/j.jhazmat.2021.127531
64
P Y Wang, Z Y Zhao, X B Xiong, N Wang, R Zhou, Z M Zhang, F Ding, M Hao, S Wang, Y Ma. et al.. (2023). Microplastics affect soil bacterial community assembly more by their shapes rather than the concentrations. Water Research, 245: 120581 https://doi.org/10.1016/j.watres.2023.120581
65
Q Y Wang, J Y Sun, X J Xu, H W Yu. (2020). Distribution and availability of fungicide-derived copper in soil aggregates. Journal of Soils and Sediments, 20(2): 816–823 https://doi.org/10.1007/s11368-019-02441-0
66
W Wang, R Dalal, P Moody, C Smith. (2003). Relationships of soil respiration to microbial biomass, substrate availability and clay content. Soil Biology & Biochemistry, 35(2): 273–284 https://doi.org/10.1016/S0038-0717(02)00274-2
67
X Wen, L Yin, Z Zhou, Z Kang, Q Sun, Y Zhang, Y Long, X Nie, Z Wu, C Jiang. (2022). Microplastics can affect soil properties and chemical speciation of metals in yellow-brown soil. Ecotoxicology and Environmental Safety, 243: 113958 https://doi.org/10.1016/j.ecoenv.2022.113958
68
R E White (2003). Soils for Fine Wines. New York: Oxford University Press
69
Y Yan, Z Chen, F Zhu, C Zhu, C Wang, C Gu. (2021). Effect of polyvinyl chloride microplastics on bacterial community and nutrient status in two agricultural soils. Bulletin of Environmental Contamination and Toxicology, 107(4): 602–609 https://doi.org/10.1007/s00128-020-02900-2
70
M Yang, D Y Huang, Y B Tian, Q H Zhu, Q Zhang, H H Zhu, C Xu. (2021). Influences of different source microplastics with different particle sizes and application rates on soil properties and growth of Chinese cabbage (Brassica chinensis L.). Ecotoxicology and Environmental Safety, 222: 112480 https://doi.org/10.1016/j.ecoenv.2021.112480
71
M Yi, S Zhou, L Zhang, S Ding. (2021). The effects of three different microplastics on enzyme activities and microbial communities in soil. Water Environment Research, 93(1): 24–32 https://doi.org/10.1002/wer.1327
72
H Yu, J Hou, Q Dang, D Cui, B Xi, W Tan. (2020). Decrease in bioavailability of soil heavy metals caused by the presence of microplastics varies across aggregate levels. Journal of Hazardous Materials, 395: 122690 https://doi.org/10.1016/j.jhazmat.2020.122690
73
H Yu, Z Zhang, Y Zhang, P Fan, B Xi, W Tan. (2021). Metal type and aggregate microenvironment govern the response sequence of speciation transformation of different heavy metals to microplastics in soil. Science of the Total Environment, 752: 141956 https://doi.org/10.1016/j.scitotenv.2020.141956
74
Y Yu, A K Battu, T Varga, A C Denny, T Zahid, I Chowdhury, M Flury. (2023). Minimal impacts of microplastics on soil physical properties under environmentally relevant concentrations. Environmental Science & Technology, 57(13): 5296–5304 https://doi.org/10.1021/acs.est.2c09822
75
J C Zak, M R Willig, D L Moorhead, H G Wildman. (1994). Functional diversity of microbial communities: a quantitative approach. Soil Biology & Biochemistry, 26(9): 1101–1108 https://doi.org/10.1016/0038-0717(94)90131-7
76
Y Zhang, X Li, M Xiao, Z Feng, Y Yu, H Yao. (2022). Effects of microplastics on soil carbon dioxide emissions and the microbial functional genes involved in organic carbon decomposition in agricultural soil. Science of the Total Environment, 806: 150714 https://doi.org/10.1016/j.scitotenv.2021.150714
77
T Zhao, Y M Lozano, M C Rillig (2021). Microplastics increase soil pH and decrease microbial activities as a function of microplastic shape, polymer type, and exposure time. Frontiers in Environmental Science, 9
78
Y Zhou, J Jing, R Yu, Y Zhao, Y Gou, Z Zhang, H Tang, H Zhang, Y Huang. (2023). Microplastics in plateau agricultural areas: spatial changes reveal their source and distribution characteristics. Environmental Pollution, 319: 121006 https://doi.org/10.1016/j.envpol.2023.121006