The Effects of Limited Time Grazing on the Grassland Vegetation in Warm-season

The vegetation community features,the community diversity and grass yield under the condition of three kind of limited time grazing and continuous grazing were compared,the results showed that comparing with the continuous grazing the effect of limited time grazing on the vegetation community features is significant.The vegetation height,vegetation cover,vegetation abundance,the index of plant diversity,richness index,evenness index and forage yield under 5h limited time grazing were higher than that under 6h,7h and continuous grazing.