Review and future trends of soil microplastics research: visual analysis based on Citespace

Abstract Compared with the research results of water microplastics, soil microplastics have been concern for a shorter time, and started later. As whole, they are still in initial stage development, problems arable land food security caused by them attracted close attention from scholars around world, but not effectively solved. To reveal status, development change process future trend, this paper is based on data Web Science (WOS) databases 2016 to November 2021, help Citespace software. The number articles published, source countries degree cooperation, institutions teams, keyword clustering trend sorted out. showed that: (1) has experienced slow-rapid growth stage. In terms China occupies first place 55 articles. publications, Free Univ Berlin ranks first, followed Chinese Academy Sciences, Brandenburg Inst Adv Biodivers Res, Wageningen Univ&Res. (2) content, environmental pollution exposure, function health soil-associated media, common shape characteristics their influencing factors, combined all covered, can be divided into eight main categories: soil, ingestion, heavy meals, fiber, marine environment, microplastic, metals, plants. (3) migration behavior ecotoxicological effects media focus at present. (4) future, “regression mechanism", “detection method evaluation standard”, “risk assessment model”, “removal technology control means” undoubtedly worthy attention.