Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Sign in to save

Effects of land use and landscape on the occurrence and distribution of microplastics in soil, China

The Science of The Total Environment 2022 100 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Kang Wang, Kang Wang, Li Xu, Chen Tu Chen Tu Chen Tu Chen Tu Li Xu, Chen Tu Chen Tu, Chen Tu, Chen Tu, Chen Tu, Ya Zhang, Chen Tu Wei Chen, Chen Tu Chen Tu, Chen Tu, Chen Tu, Chen Tu, Kang Wang, Chang-Er Chen, Chen Tu, Chen Tu, Chang-Er Chen, Chen Tu, Chen Tu, Chen Tu, Li Xu, Chang-Er Chen, Chen Tu, Chen Tu Chen Tu Chen Tu Chen Tu Chen Tu Chen Tu Chen Tu Chen Tu Li Xu, Wei Chen, Chen Tu Chen Tu Li Xu, Li Xu, Li Xu, Li Xu, Kang Wang, Kang Wang, Chang-Er Chen, Weizhi Chen, Chen Tu, Chen Tu, Wei Chen, Li Xu, Yong Ba, Li Xu, Wei Chen, Chen Tu Li Xu, Li Xu, Chen Tu, Kifayatullah Khan, Li Xu, Chen Tu, Chen Tu Chen Tu Chen Tu Chen Tu Wei Chen, Chen Tu, Li Xu, Li Xu, Li Xu, Li Xu, Li Xu, Li Xu, Kifayatullah Khan, Kifayatullah Khan, Wei Chen, Chen Tu, Chen Tu, Li Xu, Wei Chen, Wei Chen, Chen Tu, Chen Tu, Wei Chen, Li Xu, Chen Tu Wei Chen, Chen Tu Wei Chen, Wei Chen, Wei Chen, Ya Zhang, Li Xu, Li Xu, Wei Chen, Li Xu, Chen Tu Kang Wang, Li Xu, Chen Tu, Li Xu, Chen Tu Chen Tu, Chen Tu, Wei Chen, Chen Tu Chang-Er Chen, Chen Tu Chen Tu Chen Tu, Chen Tu, Chen Tu, Chen Tu, Li Xu, Chen Tu Li Xu, Li Xu, Chen Tu, Chen Tu Chen Tu, Li Xu, Chen Tu Chen Tu Li Xu, Chen Tu Li Xu, Li Xu, Li Xu, Li Xu, Wei Chen, Chang-Er Chen, Chen Tu, Wei Chen, Wei Chen, Chen Tu, Chen Tu, Li Xu, Li Xu, Li Xu, Li Xu, Li Xu, Wei Chen, Wei Chen, Chen Tu Chen Tu Chang-Er Chen, Wei Chen, Wei Chen, Chen Tu, Chen Tu

Summary

Researchers investigated how land use patterns affect microplastic contamination in soils across different agricultural, orchard, grassland, and woodland areas in Yunnan Province, China. Agricultural lands, especially those with greenhouses and traditional farming, had significantly higher microplastic levels than grasslands and woodlands, with fragments being the dominant shape. The study suggests that farming practices, including plastic mulch use and fertilizer application, are major contributors to soil microplastic pollution.

Polymers

Microplastic pollution in the soil environment has gathered widespread attention. However, little is known about the effects of land use and landscape patterns on the occurrence and distribution of microplastics in the soil. Herein, the microplastic pollution in different land uses (facility farmland, traditional farmland, orchard, grassland, and woodland) in Yuanmou County, Yunnan Province was investigated. The results showed that the abundance of microplastic ranged from 50.000 to 3450.0 items·kg, with an average abundance of 595.00 ± 740.00 items·kg and a median of 375.00 items·kg. Microplastics were found to primarily be green-coloured (28.4 %), fragment (72.7 %) in shape, <1 mm (75.7 %) in size, and composed of polypropylene (51.4 %). There were significant differences in the abundance and characteristics of the microplastics between different land use types. Microplastic abundance in facility farmlands, traditional farmlands, and orchard lands was significantly higher than that of grasslands and woodlands (p < 0.05). The main shape of the microplastics in facility farmlands, traditional farmlands, and orchards was fragments and it was fibers in grasslands and woodlands. The median particle size of microplastics in facility farmlands (539.50 μm) and traditional farmlands (574.00 μm), was smaller than those in the orchard (737.60 μm), grasslands (697.60 μm), and woodlands (1239.4 μm). Discrepancies among different land uses may be due to various reasons, such as different pollution sources and the weathering degree of microplastics. The results of the redundancy analysis showed that the microplastic abundance was negatively correlated with the largest patch index. It also showed that microplastic pollution was closely related to human activities. This study provides an important basis for further research on microplastic ecosystem risks that are associated with land use and provides a data basis for formulating effective prevention and control strategies and measures to mitigate soil microplastic pollution.

Read via DOI PubMed

Share this paper

Post Share Share Pin Email