It is unclear how N addition and mowing interactively affect grassland community structure function. We studied the short-term effects of on species diversity biomass a typical in Inner Mongolia using split-plot design, with whole plot representing treatment subplot rate. Three stubble heights were set at 10 cm (M2), 6 (M3) 3 (M4), no-mowing (M1) was also included. consisted five rates, i.e., 0...