Drought limits microplastic effects on soil greenhouse gas emissions by reducing microbial diversity
Journal of Environmental Management2025
1 citation
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Jianling Wang,
Aurang Zeb,
Aurang Zeb,
Ruiying Shi,
Jianling Wang,
Jianling Wang,
Jianling Wang,
Jianling Wang,
Zhengguo Song
Ruiying Shi,
Aurang Zeb,
Zhengguo Song
Ruiying Shi,
Aurang Zeb,
Ruiying Shi,
Ruiying Shi,
Aurang Zeb,
Ruiying Shi,
Jianling Wang,
Jianling Wang,
Jianling Wang,
Zhengguo Song
Zhengguo Song
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Aurang Zeb,
Ruiying Shi,
Ruiying Shi,
Ruiying Shi,
Weitao Liu,
Ruiying Shi,
Weitao Liu,
Weitao Liu,
Huanhuan Liu,
Fan Mo,
Fan Mo,
Huanhuan Liu,
Aurang Zeb,
Aurang Zeb,
Aurang Zeb,
Aurang Zeb,
Aurang Zeb,
Aurang Zeb,
Ruiying Shi,
Aurang Zeb,
Ruiying Shi,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Weitao Liu,
Zhengguo Song
Zhengguo Song
Zhengguo Song
Zhengguo Song
Zhengguo Song
Ruiying Shi,
Zhengguo Song
Ruiying Shi,
Aurang Zeb,
Aurang Zeb,
Weitao Liu,
Aurang Zeb,
Qi Wang,
Qi Wang,
Aurang Zeb,
Zhengguo Song
Zhengguo Song
Aurang Zeb,
Zhengguo Song
Zhengguo Song
Aurang Zeb,
Weitao Liu,
Zhengguo Song
Aurang Zeb,
Ruiying Shi,
Aurang Zeb,
Zhengguo Song
Zhengguo Song
Ruiying Shi,
Weitao Liu,
Aurang Zeb,
Weitao Liu,
Zhengguo Song
Zhengguo Song
Ruiying Shi,
Fan Mo,
Fan Mo,
Ruiying Shi,
Fan Mo,
Zhengguo Song
Zhengguo Song
Aurang Zeb,
Fan Mo,
Weitao Liu,
Zhengguo Song
Aurang Zeb,
Aurang Zeb,
Aurang Zeb,
Aurang Zeb,
Jianling Wang,
Weitao Liu,
Aurang Zeb,
Ruiying Shi,
Ruiying Shi,
Jianling Wang,
Aurang Zeb,
Ruiying Shi,
Aurang Zeb,
Jianling Wang,
Jianling Wang,
Zhengguo Song
Zhengguo Song
Zhengguo Song
Jianling Wang,
Jianling Wang,
Jianling Wang,
Jianling Wang,
Fan Mo,
Aurang Zeb,
Ruiying Shi,
Jianling Wang,
Jianling Wang,
Jianling Wang,
Jianling Wang,
Jianling Wang,
Weitao Liu,
Jianling Wang,
Yang Zhao,
Jianling Wang,
Aurang Zeb,
Ruiying Shi,
Zhengguo Song
Ruiying Shi,
Zhengguo Song
Jianling Wang,
Zhengguo Song
Aurang Zeb,
Ruiying Shi,
Chuan Yin,
Ruiying Shi,
Jianling Wang,
Jianling Wang,
Weitao Liu,
Weitao Liu,
Zhengguo Song
Chuan Yin,
Jianling Wang,
Weitao Liu,
Weitao Liu,
Jianling Wang,
Zhengguo Song
Weitao Liu,
Zhengguo Song
Chuan Yin,
Chuan Yin,
Weitao Liu,
Zhengguo Song
Weitao Liu,
Weitao Liu,
Huanhuan Liu,
Zhengguo Song
Summary
Researchers examined how microplastics and drought stress interact to affect greenhouse gas emissions from agricultural soils. They found that biodegradable microplastics increased nitrous oxide production compared to conventional polyethylene, but drought conditions consistently suppressed overall greenhouse gas output by reducing microbial diversity. The study highlights the complex interplay between plastic pollution and climate stress in shaping soil emissions and nutrient cycling.
Extreme droughts and microplastics (MPs) accumulation in agricultural soils threaten ecosystem sustainability. We examined the impact of MPs and drought stress on greenhouse gas (GHG) emissions, along with the transformation patterns of carbon (C), nitrogen (N), phosphorus (P), and sulfur (S) functional genes, and microbial communities in agricultural soils. This study aims to explore how the interaction between different types of MPs and drought stress modulates soil properties, microbial dynamics, enzymatic activities, and ultimately influences soil GHG emissions. Compared to conventional polyethylene (PE) MPs, biodegradable polybutylene succinate (PBS) MPs enhanced the generation of nitrous oxide (N<sub>2</sub>O), yet drought conditions consistently suppressed overall GHG fluxes. The activities of soil enzymes associated with C, N, P, and S cycling were influenced by the type of MPs, drought, and soil properties. Notably, combined exposure to MPs and drought substantially altered soil metabolic profiles. PBS MPs under drought caused greater bacterial diversity loss and dominant taxa shifts than PE MPs. GHG emissions correlated with soil NH<sub>4</sub><sup>+</sup>-N, pH, dissolved organic carbon, and electrical conductivity, driven by carbon degradation, methane metabolism, and phosphorus cycling functional genes. This study highlights the interplay between MPs and drought in shaping GHG emissions and nutrient cycling, offering valuable insights for the management of alternative plastic use in sustainable soil management practices.