摘要
土壤是人类社会发展的重要战略资源,健康的农田土壤不仅是食品安全的基本要求,也是人类健康的根本保障。目前关于农田土壤中微塑料的研究尚处于起步阶段,由于缺乏统一的检测标准,关于农田土壤微塑料丰度的报道差异较大。我国农田土壤重金属含量总体上呈现明显的南高北低、西高东低的分布规律,与微塑料污染有一定的耦合关系。微塑料对重金属的吸附可使其产生富集效应,可能增加其生物有效性和毒性。重金属被吸附后可随着微塑料进行迁移转化,通过解吸作用向环境中释放,造成更大范围的污染。由于农田土壤受人类活动影响较大,微塑料和重金属在土壤中的迁移、转化规律及耦合后的毒性效应需要进一步探究。本文对我国农田土壤中微塑料和重金属的污染现状、分布和迁移规律及两者的作用关系进行综述,并对未来的研究方向做了展望,为农田土壤中微塑料和重金属污染防控提供一定参考。
Soil is an important strategic resource for the development of human society.Healthy farmland soil is not only a basic requirement for food safety,but also a fundamental guarantee for human health.At present,the research on microplastics in farmland soil is still in its infancy.Due to the lack of uniform testing standards,the reported abundance of microplastics in farmland soil is quite different.The concentration of heavy metals in farmland soil in China generally presents an obvious distribution pattern of high in the south and low in the north,and high in the east and low in the west,which has a certain correlation with microplastics pollution.The adsorption of heavy metals by microplastics can produce an enrichment effect of heavy metals,which might increase its bioavailability and toxicity.After being adsorbed,heavy metals might migrate and transform along with the microplastics,and be released into the environment through desorption,which could cause a wider range of pollution.Since farmland soil is greatly affected by human activities,the migration and transformation laws of microplastics and heavy metals in soil need to be further explored.In this paper,the current situation of microplastics and heavy metal pollution in farmland soil in China were summarized,their distribution,migration rule and their correlations were analyzed,and the future research direction was prospected.This study could provide a certain references for prevention and control of microplastic and heavy metal pollution in farmland soil.
作者
仲子文
李冰
李彦
李德伟
刘延美
颜晓
刘宾绪
刘兆东
王艳芹
孙斌
薄录吉
Zhong Ziwen;Li Bing;Li Yan;Li Dewei;Liu Yanmei;Yan Xiao;Liu Binxu;Liu Zhaodong;Wang Yanqin;Sun Bin;Bo Luji(Institute of Agricultural Resources and Environment,Shandong Academy of Agricultural Sciences/Key Laboratory of Agro-Environment of Huang-Huai-Hai Plain,Ministry of Agriculture and Rural Affairs,Jinan 250100,China;No.801 Hydrogeology and Engineering Geology Brigade of Shandong Exploration Bureau of Geology and Mineral Resources,Jinan 250014,China;Shandong Agroecology and Resource Conservation Station,Jinan 250010,China;Jinan Bureau of Agriculture and Rural Affairs,Jinan 250099,China;Institute of Modern Agriculture on Yellow River Delta,Shandong Academy of Agricultural Sciences,Dongying 257345,China)
出处
《山东农业科学》
北大核心
2023年第2期165-172,共8页
Shandong Agricultural Sciences
基金
山东省重大科技创新工程项目(2021CXGC010801)
山东省农业科学院农业科技创新工程项目(CXGC2022D05)。
关键词
农田土壤
微塑料
重金属
污染防控
Farmland soil
Microplastics
Heavy metals
Pollution prevention and control
