Conceptualization, L.Z. and Z.T.; Methodology, A.S.; Software, L.Z.; Validation, L.L.; Investigation, A.S., B.S. and Y.T.; Data curation, L.Z., A.S. and Y.T.; Writing—original draft preparation, A.S. and Y.T.; Writing—review and editing, L.Z., Z.T. and J.L.; Funding acquisition, A.S. and L.Z. All authors have read and agreed to the published version of the manuscript. This research was supported by Hunan Provincial and Municipal Joint Fund “Soil Microbial Community Structure and Key Promoting Bacteria Excavation in Lactarius hatsudake Tanaka”, Hunan Provincial Forestry Special Project “Demonstration and Popularization of Standardized Technology for Forestry Mushroom (Lactarius hatsudake Tanaka) Plantation”, Hunan Provincial Forestry Science and Technology Tackling and Innovative Project (XLK202412), National Key Research and Development (2023YFD2200903).