Microplastic (MP), an emerging contaminant, is globally prevalent and poses potential environmental threats and ecological risks to both aquatic and terrestrial ecosystems. When MPs enter into natural environments, they may serve as artificial substrates for microbial colonization and plastisphere formation, providing new ecological niches for microorganisms. Recent studies of the plastisphere have focused on aquatic ecosystems. However, our understanding of the soil plastisphere e.g. its formation process, microbial ecology, co-transport of organic pollutants and heavy metals, and effects on biogeochemical processes is still very limited. This review summarizes latest methods used to explore the soil plastisphere, assesses the factors influencing the microbial ecology of the soil plastisphere, and sheds light on potential ecological risks caused by the soil plastisphere. The formation and succession of soil plastisphere communities can be driven by MP characteristics and soil environmental factors. The soil plastisphere may affect a series of ecological processes, especially the co-transport of environmental contaminants, biodegradation of MPs, and soil carbon cycling. We aim to narrow the knowledge gap between the soil and aquatic plastisphere, and provide valuable guidance for future research on the soil plastisphere in MP-contaminated soils.
Bibliographical noteFunding Information:
This work was supported by the National Natural Science Foundation of China (Grant No. 42077118 ), and National Key Research and Development Program of China (Grant No. 2020YFC1808000 ). Y.S.O. was supported through a National Research Foundation of Korea (NRF) grant funded by the Korea government ( MSIT ) (no. 2021R1A2C2011734 ), and were partly supported by the OJEong Resilience Institute ( OJERI ) Research Grant from the OJERI, Korea University, Republic of Korea.
© 2022 Elsevier B.V.
- Ecological risks
- Environmental pollution
- Soil plastisphere
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- Waste Management and Disposal
- Health, Toxicology and Mutagenesis