Abstract
The potentially symbiotic mycorrhizal associations dominated by arbuscular mycorrhizal (AM) fungi have become a new topic in bioremediation research in response to global change. Biological soil crusts (biocrusts) play an important role in arid and semi-arid ecosystems. However, AM fungal diversity in the soils underlying moss biocrusts in coal mining subsidence areas remains poorly understood. Here, samples of the soil underlying moss biocrusts in an area inoculated with an AM fungus (AM-BS) and an uninoculated area (CK-BS) plus soil samples from an uninoculated bare area (CK-NBS) were collected from the subsidence area of Shendong Daliuta mine at Yulin, northwest China. AM fungal community diversity indices were maximum in AM-BS, intermediate in CK-BS, and minimum in CK-NBS (P < 0.05). In addition, redundancy analysis (RDA) indicates that the importance of moss biocrust to soil properties followed the sequence: soil water content (SWC) > glomalin-related soil protein (TG) > available phosphorus (Olsen-P) > soil organic matter (SOM) > easily extractable glomalin-related soil protein (EEG) > pH > available nitrogen (alkali-N). SWC, alkali-N, Olsen-P, and SOM were significantly related to the abundance of Glomus and Claroideoglomus, and TG, EEG, and pH were positively related to Diversisipora. In summary, inoculation with the exotic AM fungus and moss biocrust cover created a eutrophic microhabitat for AM fungi in the soils underlying moss biocrusts in the coal mining subsidence area.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Acknowledgments
We thank Dr. Peter Christie for a final revision of the manuscript and we also thank the editor and reviewers for their valuable suggestions on an earlier version of the manuscript.
Funding
The National Natural Science Foundation of China (51974326, 51574253) and the Capital Science and Technology Talents Training Project (Beijing) (Z18110006318021) funded this study.
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Yinli Bi designed the experiments; Huan Sun carried out the experiments; Yinli Bi and Yun Guo analyzed the experimental data and wrote the manuscript. All authors read and approved the final manuscript.
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Bi, Y., Guo, Y. & Sun, H. Arbuscular mycorrhizal fungal diversity in soils underlying moss biocrusts in coal mining subsidence areas. Environ Sci Pollut Res 28, 3484–3493 (2021). https://doi.org/10.1007/s11356-020-10726-y
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DOI: https://doi.org/10.1007/s11356-020-10726-y