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Biochar affects soil organic matter cycling and microbial functions but does not alter microbial community structure in a paddy soil

Open access
Tian, Jing, Wang, Jingyuan, Dippold, Michaela, Gao, Yang, Blagodatskaya, Evgenia, Kuzyakov, Yakov·2016·Science of The Total Environment

Abstract

The application of biochar (BC) in conjunction with mineral fertilizers is one of the most promising management practices recommended to improve soil quality. However, the interactive mechanisms of BC and mineral fertilizer addition affecting microbial communities and functions associated with soil organic matter (SOM) cycling are poorly understood. We investigated the SOM in physical and chemical fractions, microbial community structure (using phospholipid fatty acid analysis, PLFA) and functions (by analyzing enzymes involved in C and N cycling and Biolog) in a 6-year field experiment with BC and NPK amendment. BC application increased total soil C and particulate organic C for 47.4-50.4% and 63.7-74.6%, respectively. The effects of BC on the microbial community and C-cycling enzymes were dependent on fertilization. Addition of BC alone did not change the microbial community compared with the control, but altered the microbial community structure in conjunction with NPK fertilization. SOM fractions accounted for 55% of the variance in the PLFA-related microbial community structure. The particulate organic N explained the largest variation in the microbial community structure. Microbial metabolic activity strongly increased after BC addition, particularly the utilization of amino acids and amines due to an increase in the activity of proteolytic (l-leucine aminopeptidase) enzymes. These results indicate that microorganisms start to mine N from the SOM to compensate for high C:N ratios after BC application, which consequently accelerate cycling of stable N. Concluding, BC in combination with NPK fertilizer application strongly affected microbial community composition and functions, which consequently influenced SOM cycling.

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Metadata

Authors
Tian, J., Wang, J., Dippold, M., Gao, Y., Blagodatskaya, E., & Kuzyakov, Y.
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2016-06
Volume
556
Pages
89-97
ISSN
0048-9697 (ISSN-L)
OpenAlex
W2333604552
Cited by
291
References
8
FWCI
26.13
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Biochar affects soil organic matter cycling and microbial functions but does not alter microbial community structure in a paddy soil. https://app.cochat.ai/papers/10.1016/j.scitotenv.2016.03.010
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Tian, J., Wang, J., Dippold, M., Gao, Y., Blagodatskaya, E., & Kuzyakov, Y. (2016). Biochar affects soil organic matter cycling and microbial functions but does not alter microbial community structure in a paddy soil. Science of The Total Environment. https://doi.org/10.1016/j.scitotenv.2016.03.010

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