The relationship between grass and livestock is the key issue of grazing ecology.Salsola passerine,the typical desert rangeland plant in Alashan,was selected to study its response to grazing under different simulated grazing intensities in order to provide proper management suggestions.The results showed that the population density of S.passerina was increased under light,moderate and heavy grazing conditions.The canopy cover area did not significantly vary among treatments.The plant height was the highest under moderate grazing condition,which was followed by light grazing and heavy grazing.T...