Abstract
Soils play a critical role in supporting agricultural production. Subsoils, below 20 cm, underpin fundamental agroecosystem sustainability traits including soil carbon storage, climate regulation and water provision. However, little is known about the ecological stability of subsoils in response to global change. Here we conducted a microcosm experiment to determine whether subsoils were more sensitive to global changes across 40 agricultural ecosystems in China, in combination with a multiple global change factor experiment and an in situ field study. We found that subsoils exhibited greater fluctuation in species diversity, community composition, and complexity of microbial networks and ecosystem functions than topsoils, indicating lower resistance to global changes. Soil biodiversity was a major driver of ecosystem resistance, surpassing climate and soil parameters. A reciprocal microorganism transplant experiment showed that microorganisms isolated from the topsoil are more resistant to global changes than those from subsoil. Our study emphasizes that subsoil ecosystems are sensitive to global changes, underscoring the importance of including subsoils in predictions of agricultural sustainability and crop productivity under changing environmental conditions.
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Data availability
The raw sequence data reported in this paper have been deposited in the Beijing Institute of Genomics (BIG) Data Center, Chinese Academy of Sciences, under BioProject accession numbers PRJCA019230 and PRJCA019239 and are publicly accessible at http://bigd.big.ac.cn/gsa. The microbial abundance table is available via GitHub at https://github.com/Pong2021/soil-resistance.git. The taxonomy information of 16S rRNA and 18S rRNA is available in the Silva database (https://www.arb-silva.de/) and the Protist Ribosomal Reference database (https://pr2-database.org/). Source data are provided with this paper.
Code availability
The R script is available via GitHub at https://github.com/Pong2021/soil-resistance.git.
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Acknowledgements
This work was supported by the National Science Foundation for Excellent Young Scholars of China (grant number: 42122050; S.J.), National Science Foundation of China (grant number: 42077222; S.J.), National Key Research and Development Program of China (grant number: 2021YFD1900500; S.J.), the Fundamental Research Funds for the Central Universities and Joint Fund of the National Natural Science Foundation of China (grant number: U21A2029; G.W.) and US National Science Foundation (grant DBI-1759892; J.M.T.).
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All authors contributed intellectual input and assistance to this study and the paper preparation. Z.P. conducted the survey collection, analysed the data and wrote the original draft. S.J. and G.W. conceived and designed the experiments. Y.L., H.P., X.L., Y.A., H.G., J.Q. and J.G. contributed to survey collection and sample processing. Z.P. and Y.L. contributed to the multifactor experiments, temporal variability experiment and microorganism reciprocal transplant experiment. S.J., M.v.d.H., X.Q., J.M.T. and G.W. reviewed and edited the draft.
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Peng, Z., van der Heijden, M.G.A., Liu, Y. et al. Agricultural subsoil microbiomes and functions exhibit lower resistance to global change than topsoils in Chinese agroecosystems. Nat Food 6, 375–388 (2025). https://doi.org/10.1038/s43016-024-01106-7
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DOI: https://doi.org/10.1038/s43016-024-01106-7
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