In this study

we studied the spatial distribution of soil salinity in a degraded wetland of Xiaopo Lake based on the combined method of electromagnetic induction (EMI) with semi-variation function in the Geo-statistical methods and the Kriging of the spatial interpolation. Significant correlation between the apparent electrical conductivity and soil salinity content indicated that apparent electrical conductivity could be used to characterize the variation of soil salinity in the degraded wetland. The results of semi-variation function showed that there was a strong spatial autocorrelation (C/(C0+C)＞0.5) for the spatial distribution of soil salinity

which meant that the distribution of salinity was mainly caused by the structural factors. By interpolating soil salinity with Kriging method

we found that the spatial distribution of soil salinity was obviously consistent with the spatial pattern of the degraded wetland

and the areas with high soil salt content were the areas where the grazing activity was strong. Soil salt content of the degraded wetland was higher than that of the non-degraded wetland

so the content of the soil salt could reflect the degree of degradation of the degraded wetland to some extent

which can offer an effective basis for the prevention and control of the wetland degradation.