Abstract
To take full advantage of biochar as a soil amendment, the objective of this study was to investigate the effects of biochar addition on soil bacterial and fungal diversity and community composition. Incubation experiments with a forest soil (a red oxidized loam soil) with and without biochar amendment were conducted for 96 days. The culture-independent molecular method was utilized to analyze soil bacterial and fungal species after the incubation experiments. Results showed that bacteria and fungi responded differently to the biochar addition during the short-term soil incubation. Twenty four and 18 bacterial genara were observed in the biochar amended and unamended soils, respectively, whereas 11 and 8 fungal genera were observed in the biochar amended and unamended soils, respectively. Microbial taxa analysis indicated that the biochar amendment resulted in significant shifts in both bacterial and fungal taxa during the incubation period. The shift for bacteria occurred at the genus and phylum levels, while for fungi only at the genus level. Specific taxa, such as Actinobacteria of bacteria and Trichoderma and Paecilomyces of fungi, were enriched in the biochar amended soil. The results reveal a pronounced impact of biochar on soil microbial community composition and an enrichment of key bacterial and fungal taxa in the soil during the short time period.
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This work was partly supported by grants from the Chinese National Natural Science Foundation (Nos. 51039007 and 51179212).
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Hu, L., Cao, L. & Zhang, R. Bacterial and fungal taxon changes in soil microbial community composition induced by short-term biochar amendment in red oxidized loam soil. World J Microbiol Biotechnol 30, 1085–1092 (2014). https://doi.org/10.1007/s11274-013-1528-5
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DOI: https://doi.org/10.1007/s11274-013-1528-5