Microplastic pollution promotes soil respiration: A global-scale meta-analysis.

Autor: Zhao S; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences and Ministry of Education, Yangling, Shaanxi, China.; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, China.; University of Chinese Academy of Sciences, Beijing, China., Rillig MC; Institute of Biology, Freie Universität Berlin, Berlin, Germany., Bing H; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China., Cui Q; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences and Ministry of Education, Yangling, Shaanxi, China.; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, China.; University of Chinese Academy of Sciences, Beijing, China., Qiu T; College of Natural Resources and Environment, Northwest A&F University, Yangling, China., Cui Y; Institute of Biology, Freie Universität Berlin, Berlin, Germany., Penuelas J; CSIC, Global Ecology Unit CREAF- CSIC- UAB, Bellaterra, Catalonia, Spain.; CREAF, Cerdanyola del Vallès, Caalonia, Spain., Liu B; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences and Ministry of Education, Yangling, Shaanxi, China.; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, China.; University of Chinese Academy of Sciences, Beijing, China., Bian S; College of Natural Resources and Environment, Northwest A&F University, Yangling, China., Monikh FA; Department of Chemical Sciences, University of Padua, Padua, Italy.; Institute for Nanomaterials, Advanced Technologies, and Innovation, Technical University of Liberec Bendlova 1409/7, Liberec, Czech Republic., Chen J; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China., Fang L; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences and Ministry of Education, Yangling, Shaanxi, China.; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, China.; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan, China.
Jazyk: angličtina
Zdroj: Global change biology [Glob Chang Biol] 2024 Jul; Vol. 30 (7), pp. e17415.
DOI: 10.1111/gcb.17415
Abstrakt: Microplastic (MP) pollution likely affects global soil carbon (C) dynamics, yet it remains uncertain how and to what extent MP influences soil respiration. Here, we report on a global meta-analysis to determine the effects of MP pollution on the soil microbiome and CO 2 emission. We found that MP pollution significantly increased the contents of soil organic C (SOC) (21%) and dissolved organic C (DOC) (12%), the activity of fluorescein diacetate hydrolase (FDAse) (10%), and microbial biomass (17%), but led to a decrease in microbial diversity (3%). In particular, increases in soil C components and microbial biomass further promote CO 2 emission (25%) from soil, but with a much higher effect of MPs on these emissions than on soil C components and microbial biomass. The effect could be attributed to the opposite effects of MPs on microbial biomass vs. diversity, as soil MP accumulation recruited some functionally important bacteria and provided additional C substrates for specific heterotrophic microorganisms, while inhibiting the growth of autotrophic taxa (e.g., Chloroflexi, Cyanobacteria). This study reveals that MP pollution can increase soil CO 2 emission by causing shifts in the soil microbiome. These results underscore the potential importance of plastic pollution for terrestrial C fluxes, and thus climate feedbacks.
(© 2024 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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