Effects of different grazing systems on soil physical and chemical properties in subalpine meadow soil

The effects of different grazing systems,including continuous grazing and rotational grazing,on soil physical and chemical properties of subalpine meadow soil were studied in the paper,based on grazing experiments in Nalati of Xinyuan Country,Xinjiang.The results showed that there was no significant effect on the soil nutrients for the short-term change of the grazing system,but the responses of soil physicochemical properties to the grazing system were still different.Compared with the continuous grazing,the contents of organic matter and available nitrogen were lower,but the contents of available potassium and available phosphate were higher in the rotational grazing system.The effects of different grazing systems on the soil bulk density,porosity and soil mechanical composition were slight.