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Soil properties and not plant factors affect both abundant and rare microbial taxa after thinning in a mixed stand of Cunninghamia lanceolata and Sassafras tzumu

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Abstract

Thinning is an effective management step for sustainable forest development, yet less attention is paid to the restoration of soil microbiota after thinning. In this study, both abundant and rare soil microbial communities (i.e., bacterial, fungal), were evaluated under various thinning treatments in a mixed stand of Cunninghamia lanceolata and Sassafras tzumu using MiSeq sequencing. Thinning did not significantly change either abundant or rare bacterial and fungal community composition, but affected their alpha diversity. The Shannon– Wiener indexes of rare fungal taxa under medium thinning were significantly lower than in the light thinning (P < 0.05 level). Xanthobacteraceae dominated the abundant bacterial taxa, and Saitozyma and Mortierlla the abundant fungal taxa. The most common rare bacterial taxa varied; there was no prevalent rare fungal taxa under different thinnings. In addition, soil available nitrogen, total phosphorus, and pH had significant effects on rare bacterial taxa. Nutrients, especially available phosphorus, but not nitrogen, affected abundant and rare soil fungi. The results indicate that soil properties rather than plant factors affect abundant and rare microbial communities in soils of mixed stands. Thinning, through mediating soil properties, influences both abundant and rare bacterial and fungal communities in the mixed C. lanceolata and S. tzumu stand.

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Acknowledgements

We are grateful to Liang Su, Huijun Chen, Jiayong Zhang and Zhenmeng Lu for their assistance in laboratory work and field investigations.

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WP: Conceptualization, writing and editing. SC: Investigation. YC: Investigation; YW: Investigation; TS: Conceptualization and methodology. HD: Data curation and visualization; FW: Investigation and methodology. FZ: Conceptualization and supervision.

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Correspondence to Tongqing Song or Fuping Zeng.

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Project funding: This research was funded by the Sino-German Cooperation Forestry Major Scientific Research Project (zdczhz2021ky09) and the National Natural Science Foundation of China (31971487 and 42277245).

The online version is available at http://www.springerlink.com.

Corresponding editor: Yanbo Hu.

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Peng, W., Song, T., Du, H. et al. Soil properties and not plant factors affect both abundant and rare microbial taxa after thinning in a mixed stand of Cunninghamia lanceolata and Sassafras tzumu. J. For. Res. 35, 18 (2024). https://doi.org/10.1007/s11676-023-01672-9

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  • DOI: https://doi.org/10.1007/s11676-023-01672-9

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