Microplastics from agricultural mulch films improve soil aggregation and alter microbial communities

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Microplastics released from the degradation of agricultural mulch films are increasingly recognized as influential factors in soil systems, with measurable effects on soil aggregation and microbial community structure. As mulch films fragment under ultraviolet radiation, temperature fluctuations, and mechanical disturbance, they generate microplastic particles that become incorporated into soil aggregates. These particles can act as physical binding agents, altering pore structure and promoting the formation of larger, more stable aggregates by interacting with soil organic matter and mineral surfaces. However, this apparent improvement in aggregation does not necessarily equate to enhanced soil health. Microplastics modify soil aeration, water retention, and nutrient diffusion, creating novel microhabitats that selectively favor certain microbial taxa while suppressing others. Changes in microbial diversity, enzyme activity, and functional groups involved in carbon and nutrient cycling have been observed, potentially reshaping biogeochemical processes. Additionally, microplastics can serve as vectors for additives, heavy metals, and organic pollutants, further influencing microbial metabolism and stress responses. Over time, these combined physical and biological alterations may affect soil fertility, crop productivity, and ecosystem resilience, highlighting the need for sustainable mulch management and biodegradable alternatives in agricultural practices.

#MicroplasticsInSoil #AgriculturalMulch #SoilAggregation #SoilMicrobiology #SoilHealth #MicrobialCommunities #PlasticPollution #SustainableAgriculture #SoilStructure #Agroecosystems #WorldResearchAwards#ResearchAwards #AcademicAwards#ScienceAwards#GlobalResearchAwards




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