Abbreviations : L. chinensis, Leymus
chinensis ; DASLES, Da‘an Sodic Land Experiment Station; CAS, Chinese
Academy of Sciences; MSSL, moderately saline-sodic grassland; SSSL,
severely saline-sodic grassland; N, nitrogen; EC, electrical
conductivity; ESP, exchangeable sodium percentage; SOM, soil organic
matter; TN, total nitrogen, AN, available nitrogen; C/N, the ratio of
carbon to nitrogen; RDA, Redundancy analysis; EMF, ecosystem
multifunctionality.