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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Food & Water Human Health Effects Policy & Risk Remediation Sign in to save

Effects of Microplastics on the Transport of Soil Dissolved Organic Matter in the Loess Plateau of China

Environmental Science & Technology 2023 57 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Xiaomei Yang, Ziqi Guo, Xiaomei Yang, Ziqi Guo, Xiaomei Yang, Violette Geissen, Ziqi Guo, Xiaomei Yang, Xiaomei Yang, Ziqi Guo, Ziqi Guo, Yang Wu, Violette Geissen, Ziqi Guo, Peng Li, Xiaomei Yang, Xiaomei Yang, Yang Wu, Xiaomei Yang, Yang Wu, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Yang Wu, Xiaomei Yang, Peng Li, Peng Li, Xiaomei Yang, Xiaomei Yang, Peng Li, Yang Wu, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Guobin Liu, Violette Geissen, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Guobin Liu, Xiaomei Yang, Yang Wu, Xiaomei Yang, Sha Xue, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Yang Wu, Yang Wu, Sha Xue, Sha Xue, Sha Xue, Violette Geissen, Sha Xue, Sha Xue, Sha Xue, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Ziqi Guo, Sha Xue Sha Xue Sha Xue Sha Xue Yang Wu, Xiaomei Yang, Yang Wu, Violette Geissen, Zhanhui Wang, Zhanhui Wang, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Ziqi Guo, Violette Geissen, C.J. Ritsema, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Yang Wu, Violette Geissen, Violette Geissen, Yang Wu, Sha Xue, Sha Xue, Sha Xue, Xiaomei Yang, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Xiaomei Yang, Yang Wu, Yang Wu, Violette Geissen, Violette Geissen, C.J. Ritsema, Sha Xue Violette Geissen, Sha Xue Violette Geissen, Sha Xue Sha Xue Violette Geissen, C.J. Ritsema, Sha Xue, Violette Geissen, Yang Wu, Violette Geissen, Sha Xue, Xiaomei Yang, Xiaomei Yang, Xiaomei Yang, Yang Wu, Xiaomei Yang, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, C.J. Ritsema, C.J. Ritsema, Guanwen Li, Yang Wu, Sha Xue Sha Xue Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Xiaomei Yang, Violette Geissen, Violette Geissen, Guobin Liu, C.J. Ritsema, C.J. Ritsema, C.J. Ritsema, Violette Geissen, Violette Geissen, Peng Li, Violette Geissen, Guobin Liu, Guobin Liu, Violette Geissen, Guobin Liu, Violette Geissen, Guobin Liu, Yang Wu, Violette Geissen, Xiaomei Yang, Xiaomei Yang, Guobin Liu, Xiaomei Yang, Sha Xue, Violette Geissen, Yang Wu, Violette Geissen, C.J. Ritsema, C.J. Ritsema, Violette Geissen, Violette Geissen, C.J. Ritsema, Guobin Liu, C.J. Ritsema, Violette Geissen, Xiaomei Yang, Guobin Liu, Sha Xue Xiaomei Yang, Sha Xue Xiaomei Yang, Violette Geissen, Xiaomei Yang, Violette Geissen, C.J. Ritsema, Sha Xue, Sha Xue, Xiaomei Yang, Violette Geissen, Xiaomei Yang, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, C.J. Ritsema, Guobin Liu, Sha Xue, Sha Xue Violette Geissen, Guobin Liu, Violette Geissen, Violette Geissen, C.J. Ritsema, C.J. Ritsema, Violette Geissen, Violette Geissen, Violette Geissen, Violette Geissen, Yang Wu, C.J. Ritsema, Sha Xue, Sha Xue

Summary

This study examined how polypropylene microplastics affect the movement of dissolved organic matter through agricultural soil in China and found that microplastics can adsorb soil nutrients like phosphorus and ammonium. While this retention might seem beneficial, it alters the natural nutrient cycling that crops depend on. The findings suggest that microplastic accumulation in farmland could gradually change soil chemistry in ways that affect food production.

Polymers
PP

Microplastics (MPs) pollution and dissolved organic matter (DOM) affect soil quality and functions. However, the effect of MPs on DOM and underlying mechanisms have not been clarified, which poses a challenge to maintaining soil health. Under environmentally relevant conditions, we evaluated the major role of polypropylene particles at four micron-level sizes (20, 200, and 500 μm and mixed) in regulating changes in soil DOM content. We found that an increase in soil aeration by medium and high-intensity (>0.5%) MPs may reduce NH<sub>4</sub><sup>+</sup> leaching by accelerating soil nitrification. However, MPs have a positive effect on soil nutrient retention through the adsorption of PO<sub>4</sub><sup>3-</sup> (13.30-34.46%) and NH<sub>4</sub><sup>+</sup> (9.03-19.65%) and their leached dissolved organic carbon (MP-leached dissolved organic carbon, MP-DOC), thereby maintaining the dynamic balance of soil nutrients. The regulating ion (Ca<sup>2+</sup>) is also an important competitor in the MP-DOM adsorption system, and changes in its intensity are dynamically involved in the adsorption process. These findings can help predict the response of soil processes, especially nutrient cycling, to persistent anthropogenic stressors, improve risk management policies on MPs, and facilitate the protection of soil health and function, especially in future agricultural contexts.

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