摘要
继海洋及淡水环境微塑料污染受到广泛关注后,土壤环境微塑料污染也逐渐受到重视,但基于农业生态系统视角关注土壤环境微塑料污染的研究仍相对匮乏。微塑料可通过多种途径进入农田土壤并持续累积,进而对农田土壤生态系统产生重要影响,甚至能够通过食物链威胁人类健康。本文基于CNKI中文数据库和Web of Science核心合集数据库,利用CiteSpace软件对土壤微塑料污染的研究结果和文献报道进行了分析,追踪对比了国内外研究的重点和热点。在此基础上,介绍了以农业生产活动为主的土壤微塑料来源,总结了国内外农田土壤中微塑料的丰度及分布特征,探讨了微塑料在农田土壤中的迁移行为及机制,同时从土壤理化性质以及土壤动物、植物、微生物等方面阐述了农田土壤中微塑料的生态效应。最后,提出了农田土壤微塑料污染研究中需要进一步解决的问题,并且对农田土壤微塑料污染未来的研究方向及重点进行了展望,以期为农田土壤微塑料的生态风险评估以及污染防控提供科学参考。
Following widespread concern about microplastics pollution in marine and freshwater environments,microplastics pollution in farmland soil is now attracting more attention,and has become a hot research topic.Microplastics enter farmland soil through a variety of ways and continuously accumulate.This has an important impact on farmland soil ecosystems and may eventually pose a threat to human health through the food chain.In this study,CiteSpace software was used to analyze the literatures on microplastics pollution in soil,based on publications listed in the China National Knowledge Infrastructure database and the Web of Science core collection database,to track and compare the focus and hotpots of research in China and other countries.On this basis,this paper introduced the sources of microplastics in soil,mainly from agricultural production activities;summarized the abundance and distribution characteristics of microplastics in farmland soil;discussed the migration behavior and mechanisms of microplastics in farmland soil;and expounded the ecological effects of microplastics in farmland soil from the aspects of soil physicochemical properties,soil animals,plants,and microorganisms.Finally,this paper pointed out the problems that remain to be solved in the study of microplastics pollution in farmland soil and the prospects for future directions in this field.The construction of prevention and control technology systems were proposed to provide a scientific reference for ecological risk assessments and the control of microplastics pollution in farmland soil.
作者
王金花
李冰
侯宇晴
王兰君
王军
朱鲁生
WANG Jinhua;LI Bing;HOU Yuqing;WANG Lanjun;WANG Jun;ZHU Lusheng(College of Resources and Environment,Key Laboratory of Agricultural Environment in Universities of Shandong,Shandong Agriculture University,Tai′an 271018,China)
出处
《农业环境科学学报》
CAS
CSCD
北大核心
2023年第5期951-965,共15页
Journal of Agro-Environment Science
基金
国家自然科学基金项目(42277039,42177266)
泰山学者工程专项。
关键词
农田土壤
微塑料
来源
赋存特征
生态效应
farmland soil
microplastic
source
occurrence characteristic
ecological effect