Phytoremediation using Miscanthus is a valuable technique for the restoration of saline-alkaline soil, but the potential is not quantified. To assess this potential, a 5years field experiment was conducted on saline-alkaline soils with three genotypes of Miscanthus and an unplanted control. The bulk soil (0–20-cm depth) physicochemical properties were measured annually from 2015 to 2018, while the bacterial and fungal community structures of the rhizosphere soil were investigated by high-throughput sequencing after 5years under Miscanthus (201...