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Advances in the environmental behavior of biodegradable microplastics in soil and their impact on carbon cycling
Received:December 04, 2024  
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KeyWord:biodegradable microplastics;adsorption;soil organic carbon;microbial community structure;functional genes
Author NameAffiliationE-mail
WANG Kai Key Laboratory of Green Chemical Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, China  
YU Yongxiang Key Laboratory of Green Chemical Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, China  
YANG Side Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs/Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA/Tianjin Key Laboratory of AgroEnvironment and Agro-Product Safety, Tianjin 300191, China  
YU Xin Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs/Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA/Tianjin Key Laboratory of AgroEnvironment and Agro-Product Safety, Tianjin 300191, China  
HAN Yujie Patent Examination Cooperation Hubei Center of the Patent Office, CNIPA, Wuhan 430205, China  
LI Xiaojing Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs/Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA/Tianjin Key Laboratory of AgroEnvironment and Agro-Product Safety, Tianjin 300191, China lixiaojing@caas.cn 
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Abstract:
      As an alternative to conventional plastics, biodegradable plastics have been widely used in agricultural production and daily life. However, biodegradable plastics that enter environmental media tend to fragment during the degradation process, resulting in the formation of biodegradable microplastics(BMPs). The increasing global production capacity of degradable plastics has exacerbated the environmental risks associated with BMPs, particularly in terrestrial ecosystems. This review summarizes the environmental behavior of BMPs in soil, including their effects on the adsorption and desorption of pollutants, biodegradation, and the release of derived dissolved organic matter(DOM). It also explores the mechanisms by which BMPs influence soil carbon cycling processes and related microbial communities and functional genes, thereby supporting the assessment of the application potential and environmental risks of biodegradable plastics.