TY - JOUR

T1 - Potential sources and occurrence of macro-plastics and microplastics pollution in farmland soils: A typical case of China

AU - Ren, Siyang

AU - Wang, Kai

AU - Zhang, Jinrui

AU - Li, Jingjing

AU - Zhang, Hanyue

AU - Qi, Ruimin

AU - Xu, Wen

AU - Yan, Changrong

AU - Liu, Xuejun

AU - Zhang, Fusuo

AU - Jones, Davey L.

AU - Chadwick, Dave R

PY - 2024/4/2

Y1 - 2024/4/2

N2 - Plastic debris (including macro-plastics, microplastics (MPs), and nanoplastics), defined as an emerging contaminant, has been proven to significantly affect soil ecosystem functioning. Accordingly, there is an urgent need to robustly quantify the pollution situation and potential sources of plastics in soils. China as the leading producer and user of agricultural plastics is analyzed as a typical case study to highlight the current situation of farmland macro-plastics and MPs. Our study summarized information on the occurrence and abundance of macro-plastics and MPs in Chinese farmland soils for the first time based on 163 publications with 728 sample sites. The results showed that the average concentration of macro-plastics, and the abundance of MPs in Chinese farmlands were 103 kg ha−1 and 4537 items kg−1 (dry soil), respectively. In addition, this study synthesized the latest scientific evidence on sources of macro-plastics and MPs in farmland soils. Agricultural plastic films and organic wastes are the most reported sources, indicating that they contribute significantly to plastic debris in agricultural soils. Furthermore, the modeling methods for quantifying macro-plastics and MPs in soils and estimating the stock and flow of plastic materials within agricultural systems were also summarized

AB - Plastic debris (including macro-plastics, microplastics (MPs), and nanoplastics), defined as an emerging contaminant, has been proven to significantly affect soil ecosystem functioning. Accordingly, there is an urgent need to robustly quantify the pollution situation and potential sources of plastics in soils. China as the leading producer and user of agricultural plastics is analyzed as a typical case study to highlight the current situation of farmland macro-plastics and MPs. Our study summarized information on the occurrence and abundance of macro-plastics and MPs in Chinese farmland soils for the first time based on 163 publications with 728 sample sites. The results showed that the average concentration of macro-plastics, and the abundance of MPs in Chinese farmlands were 103 kg ha−1 and 4537 items kg−1 (dry soil), respectively. In addition, this study synthesized the latest scientific evidence on sources of macro-plastics and MPs in farmland soils. Agricultural plastic films and organic wastes are the most reported sources, indicating that they contribute significantly to plastic debris in agricultural soils. Furthermore, the modeling methods for quantifying macro-plastics and MPs in soils and estimating the stock and flow of plastic materials within agricultural systems were also summarized

U2 - 10.1080/10643389.2023.2259275

DO - 10.1080/10643389.2023.2259275

M3 - Review article

VL - 54

SP - 533

EP - 556

JO - Critical Reviews in Environmental Science and Technology

JF - Critical Reviews in Environmental Science and Technology

SN - 1064-3389

IS - 7

ER -