Article (Scientific journals)
Mineral‑fungal interactions in response to biochar amendment: implications for carbon storage in saline-alkali soil
Liu, Lu; Chen, Mengmeng; Meersmans, Jeroen et al.
2025In Plant and Soil
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Keywords :
Biochar; Carbon; Clay minerals; Fungus; Paddy soils; Soil Science; Plant Science
Abstract :
[en] Background: Biochar application has been widely acknowledged as an environment-friendly practice to promote soil organic carbon (SOC) stabilization and sequestration in agroecosystems. However, the interaction between fungal and minerals on organic carbon storage and stabilization with biochar application still remains unclear in saline-alkaline soil. Methods: In the present research, this interaction has been studied by following 6 years treatments at an experimental farm: i) CK, without any fertilization; ii) NPK, only mineral fertilizer; iii) BC, 8.0 Mg ha−1 biochar-based NPK and iv) FeBC, 8.0 Mg ha−1 Fe modified biochar-based NPK, respectively. Results: The results show that the relative content of illite in BC and FeBC treatments was 4.8%-5.1% higher than that in NPK treatment. Moreover, more stable OC fractions and functional groups, including particulate organic carbon (POC) and aromatic-C, were found in BC and FeBC treatments. Meanwhile, a positive relationship between illite and aromatic-C was found. The two of which might form organic-mineral complexes to decrease specific C mineralization rate. Besides, biochar application increased the diversity of soil fungal community and composition at the phylum level, such as Ascomycota. Redundancy analysis revealed that the content of soil POC and SOC was the major property affecting fungal diversity. Furthermore, the relative abundance of Ascomycota and Basidiomycota was positively correlated with SOC storage. Conclusion: Effects of biochar, especially Fe-modified biochar last up to six years to improve the stability and storage of SOC in saline-alkali paddy soils, which may be a better agro-management practice.
Disciplines :
Agriculture & agronomy
Environmental sciences & ecology
Author, co-author :
Liu, Lu ;  Université de Liège - ULiège > TERRA Research Centre ; College of Resources and Environment, Qingdao Agricultural University, Qingdao, China ; 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, China
Chen, Mengmeng;  College of Resources and Environment, Qingdao Agricultural University, Qingdao, China ; 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, China
Meersmans, Jeroen  ;  Université de Liège - ULiège > Département GxABT > Echanges Eau - Sol - Plantes
Li, Yuyi;  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, China
Zhang, Shirong;  College of Resources and Environment, Qingdao Agricultural University, Qingdao, China
Ding, Xiaodong;  College of Resources and Environment, Qingdao Agricultural University, Qingdao, China
Language :
English
Title :
Mineral‑fungal interactions in response to biochar amendment: implications for carbon storage in saline-alkali soil
Publication date :
2025
Journal title :
Plant and Soil
ISSN :
0032-079X
eISSN :
1573-5036
Publisher :
Springer Science and Business Media Deutschland GmbH
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This study was funded by National Key R&D Projects (2021YFD1900901-06), the project of Agricultural Science and Technology Innovation (CAAS-ZDRW202201), Modern Agricultural Industrial Technology System (SDAIT-17-05).
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