Article (Scientific journals)
Heavy metals drive microbial community assembly process in farmland with long-term biosolids application.
Sun, Tao; Li, Guihua; Mazarji, Mahmoud et al.
2024In Journal of Hazardous Materials, 468, p. 133845
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Keywords :
Biosolids; Community assembly process; Heavy metals; Soil microbial community; Soil Pollutants/analysis; Arbuscular mycorrhizal
Abstract :
[en] Biosolids are considered an alternative to chemical fertilizers due to their rich nutrients. However, long-term biosolids application can lead to heavy metals accumulation, which severely affects soil microbial community compositions. The factors influencing soil microbial community assembly were explored under a 16-year long-term experiment with biosolids applications. Our results indicated that biosolids application significantly increased fungal richness while not for bacterial and arbuscular mycorrhizal (AM) fungal richness. Besides, biosolids application significantly affected soil bacterial, fungal compositions and AM fungal community. Soil microorganisms were clustered into different modules with bacterial and AM fungal communities were affected by both organic matter and heavy metals, while fungal communities were affected by heavy metals (Cr, Ni, and As). The soil bacterial community assembly was dominated by stochastic processes while the fungal and AM fungal community assemblies were mainly driven by deterministic processes. Random forest analysis showed that heavy metals were identified as major drivers (Hg, Cu, Cd, and Zn for bacteria, Pb and Cr for fungi, and As and Ni for AM fungi) of the community assembly process. Overall, our study highlights the significant role of heavy metals in shaping microbial community dynamics and gives a guide for controlling biosolids application.
Research Center/Unit :
TERRA Research Centre. Plant Sciences - ULiège
Disciplines :
Environmental sciences & ecology
Author, co-author :
Sun, Tao  ;  Université de Liège - ULiège > TERRA Research Centre
Li, Guihua;  State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Mazarji, Mahmoud;  State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Delaplace, Pierre  ;  Université de Liège - ULiège > TERRA Research Centre > Plant Sciences
Yang, Xing;  Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Ecology and Environment, Hainan University, Renmin Avenue, Haikou 570228, China
Zhang, Jianfeng;  State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China. Electronic address: zhangjianfeng@caas.cn
Pan, Junting;  State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China. Electronic address: panjunting@caas.cn
Language :
English
Title :
Heavy metals drive microbial community assembly process in farmland with long-term biosolids application.
Publication date :
15 April 2024
Journal title :
Journal of Hazardous Materials
ISSN :
0304-3894
eISSN :
1873-3336
Publisher :
Elsevier B.V., Netherlands
Volume :
468
Pages :
133845
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSCF - National Natural Science Foundation of China
CSC - China Scholarship Council
Earmarked Fund for China Agriculture Research System
CAAS - Chinese Academy of Agricultural Sciences
Funding number :
22176215; No.202393250064; CARS-06-14.5-A31, CARS 23-B18
Funding text :
The authors would like to thank the financial support by National Natural Science Foundation of China ( 22176215 ), the Earmarked fund for CARS ( CARS-06-14.5-A31 , CARS 23-B18 ), Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences and the China Scholarship Council (No. 202393250064 ).
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