土壤学报2026，Vol.63Issue(2)：377-388,12.DOI:10.11766/trxb202505290248
生物可降解塑料地膜在土壤中的环境行为研究进展
Research Progress in Environmental Behavior of Biodegradable Plastic Mulches in Soils
摘要
Abstract
Agricultural plastic mulch films,while enhancing crop yields,also cause severe"white pollution."As an environmentally friendly alternative,biodegradable mulches(BDMs)have attracted significant attention in recent years.This paper systematically reviews research progress on the environmental behavior of BDMs in soil,with a focus on analyzing their degradation mechanisms,the release characteristics of microplastics and additives,and their associated environmental risks.BDMs can be degraded through the synergistic action of chemical hydrolysis,photo-oxidation,and microbial enzymatic breakdown.However,the degradation rate is influenced by environmental factors such as soil temperature,moisture,and microbial communities.The degradation process of BDMs typically leads to a short-term,concentrated release of microplastics,with abundances considerably exceeding those from traditional plastic films.These microplastic fragments can further adsorb other pollutants.BDMs additives are characterized by their diverse types and high actual leaching potential in soil,yet their actual toxicity risks remain unclear.Current research on degradation mechanism,pollutant release and environmental risks of BDMs is still insufficient.Future efforts require material innovation,in-depth analysis of environmental behavior,and policy coordination to optimize the degradability of BDMs and reduce ecological risks.关键词
生物可降解地膜/微塑料/土壤污染/降解机制/塑料添加剂/环境行为Key words
Biodegradable mulches/Microplastics/Soil contamination/Degradation mechanism/Plastic additives/Environmental behavior分类
资源环境引用本文复制引用
闫祺,庄嘉禾,胡秋凝,刘燕,何德富..生物可降解塑料地膜在土壤中的环境行为研究进展[J].土壤学报,2026,63(2):377-388,12.基金项目
国家自然科学基金项目(42277273)和国家重点研发计划项目(2024YFC3713900)资助Supported by the National Natural Science Foundation of China(No.42277273)and the National Key R&D Program of China(No.2024YFC3713900) （42277273）
