Leguminous crops as a nature-based strategy (NbS) to restore the functionality of reclaimed soils in coal mine agroecosystem——datas

esults showed that the GLY treatment did not significantly alter soil field water capacity compared to the control. However, soil bulk density and the proportions of solid- and liquid-phases were significantly reduced, while the gas-phase proportion increased significantly (p < 0.05). Prolonged leguminous forage cultivation significantly decreased the soil three-phase structure distance (p < 0.05). Soil organic matter, total nitrogen, and inorganic nitrogen content decreased significantly, whereas total phosphorus, easily oxidized organic carbon, available phosphorus, and available potassium content increased significantly (p < 0.05). Key bacterial phyla included Proteobacteria (20.5-27.7%), Acidobacteriota (16.5-25.0%), and Actinobacteriota (18.8-21.6%), while dominant fungal phyla were Ascomycota (32.5-55.2%), Mortierellomycota (3.7-53.5%), and Basidiomycota (3.5-11.5%). The alpha diversity of both bacteria and fungi in the GLY treatment was significantly lower than in the control, with notable differences in β diversity (p < 0.05).