微塑料及其复合污染对农作物生长影响的研究进展

Research progress on the impact of microplastics and their combined pollution on crop growth

微塑料作为一类新污染物,已被大量研究证实广泛存在于土壤环境中,并对农作物生长及生理性状产生了不良影响,进而威胁粮食安全、危害人类健康.微塑料对农作物生长发育的影响主要包括对农作物种子发芽、幼苗生长和生理指标的毒性效应以及对抗氧化系统的刺激作用.系统总结并梳理了微塑料及其复合污染对农作物生长发育的影响,归纳了微塑料不同性质对农作物产生的毒性效应机制,以期能为农田土壤微塑料污染的生态风险评估及治理防控提供理论依据与科学支撑.

As a new type of pollutant,microplastics widely present in soil environment,causing adverse effects on crops,posing a threat to food security and endangering human health.The effects of microplastics on crop growth and development mainly include toxic effects on seed germination,seedling growth,and physiological indicators,as well as simulative effects on the antioxidant system.This paper systematically analyzed the impact of microplastics and their combined pollution with other substances on crop growth and development,providing scientific bases and theoretical references for risk assessment and control of microplastics pollution in farmland soil.