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Weak responses of soil microorganisms to leaf litter inputs after native Phyllostachys edulis invasion into adjacent native forests

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Abstract

Aims

Moso bamboo (Phyllostachys pubescens) invasions into native forest cause a series of ecological problems, including the alteration of soil microorganism community composition. Additionally, it has been established that variation changes in leaf litter types can drive changes in soil microorganism communities. We have previously demonstrated distinct differences in nutrient composition between bamboo leaf litter and leaf litter of native plants. Yet to date, we lack a comprehensive understanding of how Moso bamboo leaf litter inputs change soil microorganism community composition in native forests.

Methods

We conducted an in-situ decomposition experiment to examine the response of soil bacterial and fungi phyla to Moso bamboo leaf litter addition in three native forest soils.

Results

Bamboo leaf litter had higher quality (low lignin content and low C:N) and higher decomposition rates compared to native forest plants. Bamboo leaf litter additions did not change the richness and diversity of soil bacterial and fungi in the Broadleaf forest and Chinese fir forest. Additionally, bamboo leaf litter additions only affected the soil microorganisms in the Cryptomeria japonica var. Sinensis forest with low-quality litter; Principal Component Analysis (PCA) further supported this result.

Conclusions

Our results demonstrate that the soil microbial community has resilience to chemical and biotic inputs from foreign leaf litter. This study helps soil ecologists better understand the impacts of Moso bamboo invasions into native forests, including the weak effects of its litter input on soil microorganisms.

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Acknowledgements

This research was supported by JIANGXI “DOUBLE THOUSAND PLAN” (江西省千人计划, jxsq2020101079); the National Natural Science Foundation of China (42067050, 41807028, 32060319, 32260335); Graduate Innovation Fund of Jiangxi Province (YC2022-s425).

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Correspondence to Fenggang Luan.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Responsible Editor: Feike A. Dijkstra.

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Liu, J., Compson, Z.G., Gui, X. et al. Weak responses of soil microorganisms to leaf litter inputs after native Phyllostachys edulis invasion into adjacent native forests. Plant Soil 494, 685–699 (2024). https://doi.org/10.1007/s11104-023-06311-0

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  • DOI: https://doi.org/10.1007/s11104-023-06311-0

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