Microplastic pollution alters forest soil microbiome

被引：155

作者：

Ng, Ee Ling ^{[1
]}

Lin, Silk Yu ^{[1
]}

Dungan, Ashley M. ^{[2
]}

Colwell, John M. ^{[3
]}

Ede, Sarah ^{[4
,5
]}

Lwanga, Esperanza Huerta ^{[6
,7
]}

Meng, Ke ^{[6
]}

Geissen, Violette ^{[6
]}

Blackall, Linda Louise ^{[2
]}

Chen, Deli ^{[1
]}

机构：

[1] Univ Melbourne, Sch Food & Agr, Melbourne, Vic 3010, Australia

[2] Univ Melbourne, Sch Biosci, Melbourne, Vic 3010, Australia

[3] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia

[4] Queensland Univ Technol, Ctr Mat Sci, Brisbane, Qld 4000, Australia

[5] Queensland Univ Technol, Sch Chem & Phys, Brisbane, Qld 4000, Australia

[6] Wageningen Univ & Res, Soil Phys & Land Management Grp, NL-6708PB Wageningen, Netherlands

[7] El Colegio Frontera Sur, Agroecol, Unidad Campeche Av Poligono S-N, Lerma, Campeche, Mexico

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2021年 / 409卷

关键词：

Soil respiration; Soil physical properties; Low-density polyethylene; Polyethylene terephthalate; Polyester fibres; Soil bacteria composition; ORGANIC-MATTER; COMMUNITIES; FRACTIONS; PATTERNS; WATER;

D O I：

10.1016/j.jhazmat.2020.124606

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The impact of microplastic pollution on terrestrial biota is an emerging research area, and this is particularly so for soil biota. In this study, we addressed this knowledge gap by examining the impact of aged low-density polyethylene (LDPE) and polyester fibres (i.e. polyethylene terephthalate, PET) on a forest microbiome composition and activity. We also measured the corresponding physicochemical changes in the soil. We observed that bacteria community composition diverged in PET and LDPE treated soils from that of the control by day 42. These changes occurred at 0.2% and 0.4% (w/w) of PET and at 3% LDPE. Additionally, soil respiration was 8 fold higher in soil that received 3% LDPE compared to other treatments and control. There were no clear patterns linking these biological changes to physicochemical changes measured. Taken together, we concluded that microplastics aging in the environment may have evolutionary consequences for forest soil microbiome and there is immediate implication for climate change if the observed increase in soil respiration is reproducible in multiple ecosystems.

引用

页数：10

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